{"title":"Hayward H-Series Heater Parts","description":"\u003cp\u003eReplacement parts for Hayward H-Series Heater, genuine OEM and compatible aftermarket.\u003c\/p\u003e\u003cp\u003eIf the heater is showing a code, \u003ca href=\"\/pages\/pool-heater-error-codes#hayward\"\u003eHayward H-Series error codes\u003c\/a\u003e says what it means and which part it names.\u003c\/p\u003e","products":[{"product_id":"natural-gas-valve-kit-fd","title":"Hayward Natural Gas Valve Kit, FD Series, FDXLGSV0003","description":"\u003cp\u003eThis is the natural gas valve for Hayward's Universal H-Series Low NOx FD heaters. It fits every size in the line, H150FD, H200FD, H250FD, H300FD, H350FD and H400FD, across the pool, spa and hot tub versions and the ASME models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePart number history\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward has superseded FDXLGSV0001 with FDXLGSV0003. If your parts list or the tag on your old valve shows FDXLGSV0001, this is the current replacement; FDXLGSV0003 is what ships.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNatural gas only\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGas valves are fuel specific. If your heater runs on propane, order the FD Series LP gas valve instead. Converting a heater from one fuel to the other is a separate job that uses the burner orifice kit or the conversion kit, not just a valve.\u003c\/p\u003e\u003cp\u003eGas valve replacement should be done by a qualified technician, with the gas supply shut off and the connection leak checked before the heater goes back into service.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624833233108,"sku":"HAY-151-0032","price":418.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_1bcb11ba-3351-4ee4-8d7b-c7ed2990d65e.png?v=1788643297"},{"product_id":"heat-exchanger-assembly-h250fd","title":"Hayward Heat Exchanger Assembly for H250FD, FDXLHXA1250","description":"\u003cp\u003eThe Hayward FDXLHXA1250 is the genuine heat exchanger assembly for the H250FD, the 250 size in the Universal H-Series low NOx line of pool and spa heaters. It is the part that carries pool water across the burner heat, and it is the one you replace when the exchanger has failed from scale, chemistry damage or a freeze.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat you get\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe complete exchanger assembly from Hayward, with 2 in. x 2 1\/2 in. CPVC union plumbing connections. Because it is the OEM assembly it matches the H250FD without adapting anything. It meets low NOx emission standards for clean air compliance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCheck that your heater is an H250FD. The other Universal H-Series FD sizes have their own exchanger part numbers. The assembly weighs 48.5 lb, so plan for the lift when you set it into the heater. Gasket kits and the header o-ring kit for the FD series are sold separately.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624873046228,"sku":"HAY-151-0005","price":1282.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_4fc97949-785e-45a1-a0e5-567e669eeb7d.jpg?v=1788647873"},{"product_id":"heat-exchanger-assembly-h300fd","title":"Hayward Heat Exchanger Assembly, H300FD, FDXLHXA1300","description":"\u003cp\u003eThe Hayward FDXLHXA1300 is the genuine heat exchanger assembly for the Universal H-Series Low NOx H300FD pool heater. It is an exact replacement for the original, built to the same standard, and fits the H300FD without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen it is the fix\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWater inside the cabinet, rust streaking below the exchanger, or a heater that fires but has lost its heating performance all point to the exchanger. Replacing the assembly restores the heater rather than replacing the whole unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore it goes in\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe part is specific to the H300FD; other H-Series FD sizes use their own exchanger. And if the old exchanger failed early, check water chemistry before installing the new one. Low pH and high chlorine are what shorten an exchanger's life.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624873799892,"sku":"HAY-151-0006","price":1311.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_a7f58080-4e4f-4997-b0fd-f71b68ca8db9.jpg?v=1788647971"},{"product_id":"heat-exchanger-assembly-h350fd","title":"Hayward Heat Exchanger Assembly, H350FD, FDXLHXA1350","description":"\u003cp\u003eThe Hayward FDXLHXA1350 is the genuine heat exchanger assembly for the Universal H-Series Low NOx H350FD pool heater. It is the component where burner heat is transferred into the pool water, and it is supplied as a complete assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis part number is specific to the H350FD. Confirm the model on your heater's rating plate before ordering, since other H-Series sizes use their own exchanger part numbers.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624879698132,"sku":"HAY-151-0007","price":1470.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e82c41d0-e24b-466a-8378-16a6ac9bfb64.jpg?v=1788648764"},{"product_id":"h-series-control-bezel-assembly-ed2","title":"Hayward H-Series Control Bezel Assembly ED2, HAXCPA1932","description":"\u003cp\u003eThe Hayward HAXCPA1932 is the control bezel assembly for H-Series ED2 style electronic gas heaters. It is a genuine Hayward replacement part covering the 150 through 400 sizes in that style.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe bezel is specific to the ED2 generation of the H-Series. Confirm the style from the model label on your heater so the assembly matches.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624884351188,"sku":"HAY-151-1226","price":692.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_d9014af9-dacd-4635-894f-bb18fed0c922.jpg?v=1788649615"},{"product_id":"hayward-fdxlter1931-thermistor","title":"Hayward HDF400 Thermistor, FDXLTER1931","description":"\u003cp\u003eThe Hayward FDXLTER1931 is the thermistor for the HDF400 heater. It is the genuine Hayward part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe thermistor is the water temperature sensor. The heater control reads it to decide when to fire and when the pool has reached the set point. When it drifts or fails open, the display shows the wrong temperature or the heater throws a sensor fault and refuses to run.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward uses several thermistors across its heater lines. Confirm your heater calls for FDXLTER1931 before ordering.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624886055124,"sku":"HAY-151-0119","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_ac624729-87bf-4cb7-95a5-746ba4db55dd.jpg?v=1788649881"},{"product_id":"heat-exchanger-assembly-h400fd","title":"Hayward Heat Exchanger Assembly for H400FD, FDXLHXA1400","description":"\u003cp\u003eThe Hayward FDXLHXA1400 is the heat exchanger assembly for the H400FD Universal H-Series Low NOx pool and spa heater. It is the genuine Hayward replacement, supplied as a complete assembly so it drops in where the original came out.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe heat exchanger is the heart of a gas heater. Pool water passes through it while the burner heats it from below, and everything the heater does depends on that transfer working. When an exchanger scales up, corrodes or starts to leak, the symptoms show up as poor heating, water in the cabinet or tripped safeties, and the fix is a new assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis assembly is specific to the H400FD. The other sizes in the Universal H-Series, H150FD through H350FD, use their own exchangers, so confirm the model on your heater's rating plate before ordering. If the plate reads H400FD, this is the part.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624921903316,"sku":"HAY-151-0008","price":1605.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_4bad3fd3-bd3d-4818-afcf-9bc81f0fbccd.jpg?v=1788653584"},{"product_id":"h-series-bezel-keypad-assembly","title":"Hayward H-Series Bezel \u0026 Keypad Assembly, FDXLBKP1930","description":"\u003cp\u003eThe Hayward FDXLBKP1930 is the bezel and keypad assembly for the Universal H-Series Low NOx heaters, and it fits every size in the line: H150FD, H200FD, H250FD, H300FD, H350FD and H400FD. It is the genuine Hayward part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it replaces\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe keypad is the only way to talk to an H-Series heater. Temperature, mode and every status reading go through this pad and the window in the bezel around it. Years of sun and weather stiffen the buttons until they need a hard press, then stop responding altogether, and a cracked bezel lets water in behind the pad. Because the two come as one assembly, either problem is fixed with a single part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAny Hayward heater whose model ends in FD takes this assembly. Check the rating plate behind the access panel, and if it reads one of the six FD models, this is the keypad.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624922263764,"sku":"HAY-151-0015","price":122.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_88205d76-16a8-4949-8c20-b38627ba09ad.jpg?v=1788653610"},{"product_id":"heat-exchanger-assembly-h150fd","title":"Hayward Heat Exchanger Assembly for H150FD, FDXLHXA1150","description":"\u003cp\u003eThe Hayward FDXLHXA1150 is the replacement heat exchanger assembly for the Universal H-Series Low NOx H150FD heater. It is the genuine Hayward part, supplied as a complete assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMatch it to your heater\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Universal H-Series Low NOx line runs from the H150FD up to the H400FD, and each size has its own exchanger. This one is for the H150FD. Check the model on the rating plate before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen it is time\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe heat exchanger is where pool water takes heat from the burner, and it is the part that suffers most from poor water balance. Leaks from the cabinet, scale or corrosion at the header, or a heater that fires but no longer heats are the usual signs. If the inlet and outlet unions have hardened or cracked, Hayward sells a union connector kit separately so the whole water side can be renewed at once.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624928194772,"sku":"HAY-151-0003","price":1241.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_37996bb6-676c-457c-8608-82acba1263d7.jpg?v=1788654837"},{"product_id":"heat-exchanger-assembly-h200fd","title":"Hayward Heat Exchanger Assembly, H200FD, FDXLHXA1200","description":"\u003cp\u003eThe Hayward FDXLHXA1200 is the genuine replacement heat exchanger assembly for the Universal H-Series Low NOx pool and spa heater, model H200FD. The exchanger is where the heater does its work: pool water passes through it while the burners heat it from below, and the assembly is supplied complete and ready to set into the heater.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePoor water chemistry, especially low pH and high sanitizer levels, attacks the exchanger from the inside, and scale from hard water coats it. The signs are water in the burner tray or under the heater, rust staining below the exchanger, and a heater that short cycles on high limit or will not reach set temperature. Once it leaks, the exchanger assembly is the repair.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis part is specific to the H200FD. The H150FD, H250FD, H300FD, H350FD and H400FD each use their own exchanger, so check the model on the heater's rating plate. Correct the water chemistry that damaged the old exchanger before running the new one.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624934256852,"sku":"HAY-151-0004","price":1234.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_744e61b2-fa36-4bf3-aa7e-b40a796dfd30.jpg?v=1788655168"},{"product_id":"front-header-assembly","title":"Hayward Front Header Assembly, FDXLFHA1930","description":"\u003cp\u003eThe Hayward FDXLFHA1930 is the genuine front header assembly for the Universal H-Series Low NOx pool heaters, covering the H150FD, H200FD, H250FD, H300FD, H350FD and H400FD.\u003c\/p\u003e\u003cp\u003eThe front header is the water side manifold at the plumbing end of the heat exchanger. It is the usual replacement when a heater leaks where the pool plumbing meets the heater. The FD header o-ring kit is a separate part and should be replaced at the same time.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624960340180,"sku":"HAY-151-1000","price":315.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_062c2ab4-ae73-4344-bdaf-01b2485b6a32.jpg?v=1788656663"},{"product_id":"control-board-kit-fd","title":"Hayward Control Board Kit, FD, FDXLICB1930","description":"\u003cp\u003eThe Hayward FDXLICB1930 is the integrated control board kit for the Universal H-Series Low NOx FD heaters. It fits the H150FD, H200FD, H250FD, H300FD, H350FD and H400FD, including the ASME versions, in both pool and spa\/hot tub service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the main board in the heater. It runs the ignition sequence, monitors the safety and temperature inputs and drives the display and keypad on the front panel. When the heater will not respond, shows a persistent board fault or has suffered a surge or water damage in the control compartment, this is the part that gets replaced.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm your heater model on the rating plate ends in FD. If the keypad or wiring harness is also suspect, the bezel and keypad assembly and the complete FD wiring harness are separate parts.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624965615828,"sku":"HAY-151-6914","price":407.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_54674a9b-d6da-4b4e-8f17-7635874b1426.jpg?v=1788656788"},{"product_id":"propane-gas-valve-fd","title":"Hayward 150K-400K FD Series LP Gas Valve, FDXLGSV0002","description":"\u003cp\u003eThe Hayward FDXLGSV0002 is the gas valve for the Universal H-Series Low NOx FD heaters, covering the 150K through 400K BTU sizes. It is the genuine Hayward part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward lists it for the H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN and H400FDP. It is sold as the LP gas valve for the series. Because the fit list carries both the FDN and FDP suffixes, compare the part number on the valve already in your heater with FDXLGSV0002 before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is a gas component. Have it fitted by a qualified technician, and leak test every connection before the heater is put back into service.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624998580436,"sku":"HAY-151-0033","price":304.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_29c9448e-414f-46db-afdc-39f762b1a586.png?v=1788661788"},{"product_id":"flame-sensor-low-nox-universal","title":"Hayward Flame Sensor, Low NOx\/Universal, IDXLFLS1930","description":"\u003cp\u003eThe Hayward IDXLFLS1930 is the genuine flame sensor for the Universal H-Series Low NOx heaters, models H150FD through H400FD, and for the earlier H-Series Low NOx 250 and 400.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOnce the ignitor lights the burner, the flame sensor confirms to the control board that a flame is present. Without that signal the board closes the gas valve within seconds. A heater that lights, runs briefly and drops out, then retries, is the classic sign.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eClean before you replace\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA coated sensor rod gives the same symptom as a failed one, so it is worth cleaning the rod first. If the fault continues, fit this sensor. The ignitor is a separate part.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48625020534996,"sku":"HAY-151-1584","price":91.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_81cac8bb-1554-4caf-82e7-75be57ccf659.jpg?v=1788662326"},{"product_id":"h-series-display-board","title":"Hayward H-Series Display Board, IDXL2DB1930","description":"\u003cp\u003eThe Hayward IDXL2DB1930 is the genuine display board for the H-Series heater family. It is the panel that shows set temperature, operating state and the diagnostic codes used to trace a fault.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it fits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward lists it for ASME heaters, H-Series Low NOx induced draft heaters and the Universal H-Series Low NOx range, covering models H250IDL2, H350IDL2, H400IDL2, H150FD, H200FD, H250FD, H300FD, H350FD, H400FD and H500FD, in both pool and spa applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck the build date\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis board is for heaters manufactured after 8\/19\/2002. That date is the dividing line in the H-Series control platform, so read the rating plate before ordering rather than going by model number alone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA display that stays dark with power present, shows scrambled segments, or refuses to accept input at the buttons points at the display board rather than the heater itself. Replacing it restores the interface and the fault code readout that the rest of the diagnosis depends on.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48625743003860,"sku":"HAY-151-6900","price":351.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_60468c91-bb1c-4f55-a760-d3200db250b7.png?v=1788690546"},{"product_id":"h-series-propane-to-natural-gas-conversion-kit-100k","title":"Hayward H-Series Propane to Natural Gas Conversion Kit, 100K, IDXCNK1934","description":"\u003cp\u003eThe Hayward IDXCNK1934 is the genuine conversion kit that changes a 100K H-Series pool heater from propane to natural gas.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it is for\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA gas heater is built and orificed for one fuel. Moving it to the other fuel means changing the parts that meter the gas, which is what a conversion kit supplies. This kit is the propane to natural gas direction for the 100K H-Series.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCheck the size on the heater rating plate so the kit matches, and plan for a qualified gas technician to carry out the conversion and label the unit afterward.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48625760272596,"sku":"HAY-151-1934","price":71.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_c77517fb-c766-4bb7-89c7-c4d5e2639daa.jpg?v=1788691974"},{"product_id":"blower-vacuum-switch","title":"Hayward Blower Vacuum Switch, FDXLBVS1930","description":"\u003cp\u003eThe Hayward FDXLBVS1930 is the blower vacuum switch for Universal H-Series Low NOx pool and spa heaters and the ASME versions, covering models H150FD, H200FD, H250FD, H300FD, H350FD and H400FD. It is the genuine Hayward part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it proves\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBefore the heater is allowed to ignite, it has to know the combustion blower is really moving air. The vacuum switch is what confirms that. It reads the pressure the blower creates and closes a contact, and only then does the ignition sequence continue.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe fault it causes\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWhen the switch fails, or the small hose that feeds it is cracked or plugged, the heater will start its blower and then lock out without firing. Before condemning the switch, check that hose and look for a restriction in the vent, because a blocked flue produces the same symptom. Once the switch itself is proven faulty it gets replaced, not bypassed; it is part of the safety chain that keeps the heater from firing into a dead blower.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48625772462292,"sku":"HAY-151-0021","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_100af5ed-592e-4cf0-9a8a-8b9b932de2d5.jpg?v=1788692056"},{"product_id":"wiring-harness-complete-fd","title":"Hayward Complete Wiring Harness, FD, FDXLWHA1930","description":"\u003cp\u003eThe Hayward FDXLWHA1930 is the complete wiring harness in the FD version, a genuine Hayward pool heater part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it covers\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe harness is the loom that ties the heater control together: the leads, connectors and routing that link the board to the sensors, the gas valve and the ignition side of the appliance. Hayward supplies it as one piece.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen it gets replaced\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHeat, moisture and vibration are hard on wiring inside a heater cabinet. Melted connector bodies, chafed insulation and corroded terminals show up as intermittent faults that are almost impossible to chase down lead by lead. Replacing the harness as a unit restores the original connectors and lead lengths and puts the wiring back to the factory layout. Confirm the part number against your heater documentation before ordering.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48625783767252,"sku":"HAY-151-0052","price":240.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_3bcbac41-8066-4f7d-b79a-052f1b262773.jpg?v=1788692133"},{"product_id":"heat-exchanger-assembly-300","title":"Hayward Heat Exchanger Assembly for H-Series 300,000 BTU Heaters, HAXHXA1303","description":"\u003cp\u003eThe Hayward HAXHXA1303 is the copper heat exchanger assembly for the H-Series 300,000 BTU pool heater. It is the genuine Hayward part, supplied as a complete assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the exchanger does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEverything the burner produces has to cross into the water somewhere, and the heat exchanger is that crossing point. It is also the component that pool chemistry attacks hardest. Low pH, high chlorine and years of flow eventually pit and split the tubes, and once an exchanger leaks the heater is finished until it is replaced.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMatch the size\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eH-Series heaters run from 150 to 400 and each output has its own exchanger. This one is the 300. Take the model and BTU rating off the data plate before ordering, because the assemblies are not interchangeable between sizes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlan the job\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eReplacing an exchanger means opening the heater, which brings the o-ring set and union hardware into play. Those are separate Hayward numbers and are worth having in hand so the heater goes back together in one session.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48625789141204,"sku":"HAY-151-1303","price":1796.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_a98cc08d-1422-4ce5-8e8f-cf3ee21cb7f2.jpg?v=1788700075"},{"product_id":"field-wiring-panel-kit-fd","title":"Hayward Field Wiring Panel Kit, FD, FDXLFWP1930","description":"\u003cp\u003eThe Hayward FDXLFWP1930 is the genuine field wiring panel kit for the Universal H-Series Low NOx heaters. It covers the whole FD range, from the H150FD up to the H400FD.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it is\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe field wiring panel is where the wiring brought to the heater during installation lands. Hayward supplies it as a kit under a single part number rather than as loose pieces, and the same number is called out across all six heater sizes in the range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich heaters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eH150FD, H200FD, H250FD, H300FD, H350FD and H400FD. Hayward also lists the kit for use with ASME heaters and with the pool and spa or hot tub versions of these models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot the control board\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the wiring panel, not the control board. If the fault is in the heater logic rather than at the field connections, the control board kit is the separate part to look at.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48625847206100,"sku":"HAY-151-0026","price":101.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_b6897f8f-5aa5-4925-a153-7d9e07bdfa50.jpg?v=1788701493"},{"product_id":"hayward-fdxlegl1930-exhaust-gas-temperature-limit-for-h-series-heaters","title":"Hayward Exhaust Gas Temperature Limit for H-Series Heaters, FDXLEGL1930","description":"\u003cp\u003eThe Hayward FDXLEGL1930 is the exhaust gas temperature limit used on H-Series and Universal H-Series pool heaters. It is a genuine Hayward part, made by Hayward for its own equipment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it is watching\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe limit sits in the exhaust path and monitors the temperature of the gas leaving the heater. If that temperature climbs beyond the safe point, the limit opens and the heater stops. It is a protective device, so when it fails the heater will usually refuse to run rather than run unsafely.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward builds a range of H-Series heaters and the parts are not interchangeable across all of them. Check your heater manual against the part number so the limit you receive is the one your model calls for. This listing is the limit on its own, for a heater that only needs this part replaced.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48625848484052,"sku":"HAY-151-1999","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_935c6b1a-f725-45cc-88d5-4e3bc327bd9e.jpg?v=1788701547"},{"product_id":"hayward-uhxnegvt12506-negative-pressure-indoor-vent-adapter-for-universal-h-series-h250-heaters-6","title":"Hayward Negative Pressure Indoor Vent Adapter for Universal H-Series H250 Heaters, 6 in, UHXNEGVT12506","description":"\u003cp\u003eThe Hayward UHXNEGVT12506 is the 6 in negative pressure indoor vent adapter for Universal H-Series H250 pool heaters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy an indoor heater needs it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA gas heater installed inside a building has to send its combustion products outside through a proper vent. This adapter is the piece that connects the heater to that vent run in a negative pressure arrangement, where the draft pulls the flue gases along rather than pushing them.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the right one\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward makes vent adapters in different sizes and for different pressure arrangements, so the model, the vent size and the vent type all have to line up. This one is the 6 in negative pressure adapter listed for the H250. Check the data plate on your heater and the design of your vent run before ordering, and have the venting installed to code by a qualified gas fitter.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48625853989076,"sku":"HAY-15-1535","price":240.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_8ec44fcb-17f2-443d-9198-b8bbebe1dc72.jpg?v=1788701744"},{"product_id":"h-series-heat-exchanger-assembly-150-000-btu","title":"Hayward H-Series Heat Exchanger Assembly, 150,000 BTU, HAXHXA1153","description":"\u003cp\u003eThe Hayward HAXHXA1153 is the heat exchanger assembly for the 150,000 BTU H-Series pool heater. It is the genuine Hayward part, supplied complete rather than as separate tubes and headers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the exchanger does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe heat exchanger is where the burner flame gives up its heat to the water passing through the heater. Everything else in the cabinet exists to feed it gas, air and flow. When it corrodes through, the heater either leaks water into the cabinet or trips out on its safeties, and no amount of work on the gas train will fix it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis assembly is for the 150,000 BTU heater. It covers the H-150 millivolt version as well as the electronic ED1 style and electronic ED2 style heaters, so it suits both older and later cabinets at that output. Larger H-Series heaters use a different exchanger.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the BTU rating on the heater data plate. Water chemistry is the usual cause of exchanger failure, so it is worth correcting low pH or high salt levels before the new assembly goes in.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626111774932,"sku":"HAY-151-1153","price":1357.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_363583db-a1c0-497f-855d-3a8d7f08cd9e.jpg?v=1788704970"},{"product_id":"hayward-fdxlprm1930-polymer-return-maniifold-universal-h-series-low-nox-fd-series-heaters","title":"Hayward Polymer Return Manifold, Universal H-Series and Low NOx FD Series Heaters, FDXLPRM1930","description":"\u003cp\u003eThe Hayward FDXLPRM1930 is the polymer return manifold for Universal H-Series and Low NOx FD Series pool heaters. It is the genuine Hayward replacement part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the manifold does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWater enters the heater through the inlet manifold, passes through the heat exchanger and leaves through the return manifold. The return side sees the hottest water in the heater, and the manifold has to hold pressure at that temperature every time the heater fires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRepeated heating and cooling eventually tells on the polymer. A manifold that has hairline cracked, or is weeping at a joint that no longer seals with fresh o-rings, is replaced rather than repaired. This part covers the return side only.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626122850516,"sku":"HAY-151-0090","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e1d81652-6198-451d-ad7e-fa8d64326c2c.jpg?v=1788705150"},{"product_id":"bezel-touchpad-assembly-hayward-low-nox-2002-present","title":"Hayward Bezel\/Touchpad Assembly, Low NOx Heaters (2002 to Present), IDXL2BKP1930","description":"\u003cp\u003eThe Hayward IDXL2BKP1930 is the control bezel and touchpad assembly for Hayward Low NOx pool heaters. It is the genuine Hayward part, supplied as the bezel and the membrane keypad together.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy keypads fail\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe control panel is the one part of a heater that gets handled every time somebody changes a setpoint, and it sits outdoors through every season. Sun, moisture and repeated pressing eventually break the membrane contacts. The heater still powers up and the display may still light, but the buttons stop registering. Replacing the assembly restores temperature setting, mode selection and the readout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck the date first\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis assembly is for heaters manufactured after 8\/19\/2002. Hayward changed the design at that point, so read the manufacture date on the rating plate before ordering. It is shown on the parts diagram for the Hayward H-Series Low NOx models 250 and 400.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626209980628,"sku":"HAY-151-6901","price":326.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_5d046ec5-49e3-4568-bb8a-040ef3f871eb.jpg?v=1788706119"},{"product_id":"h-series-ignitor-kit","title":"Hayward Universal H-Series Ignitor Kit, FDXLIGN1930","description":"\u003cp\u003eThe Hayward FDXLIGN1930 is the ignitor kit for Universal H-Series Low NOx pool heaters, covering models H150FD, H200FD, H250FD, H300FD, H350FD and H400FD. It is the genuine Hayward part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy ignitors fail\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe ignitor takes the full thermal cycle every time the heater calls for heat, going from ambient to glowing and back again. Over enough cycles the element develops hairline cracks or simply goes open circuit. The heater then runs through its startup sequence, purges, and locks out without ever lighting the burner, which is the fault most owners describe as the heater trying but not starting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDiagnosing before you swap\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn ignitor and a dirty flame sensor produce similar symptoms, so it is worth checking both. The ignitor fails to light the burner at all. A failed flame sensor lets the burner light and then shuts it down seconds later because the control never sees flame. The flame sensor is a separate Hayward part.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626210668756,"sku":"HAY-151-0037","price":130.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e0b39b6a-e68d-47dc-8989-999145c2f04e.jpg?v=1788706140"},{"product_id":"combustion-blower-kit","title":"Hayward Combustion Blower Kit, FDXLBWR1930","description":"\u003cp\u003eThe Hayward FDXLBWR1930 is the combustion blower kit for the Universal H-Series Low NOx pool heaters. Hayward lists it against the H150FD, H200FD, H250FD, H300FD, H350FD and H400FD.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the blower does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe combustion blower supplies air to the burner. Nothing else in the heater can start until it is turning, which is why a heater with a failed blower reads as a heater that simply will not fire. Owners often chase ignition parts first when the blower is the part that has stopped.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy it wears\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe blower runs on every call for heat, season after season, so on a heater with real hours on it the blower is a normal replacement rather than a surprise. Hayward supplies the part as a kit rather than a bare motor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCheck the model plate on the heater. This kit is listed for the Universal H-Series Low NOx sizes 150 through 400, and other Hayward heater families use different blowers.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626211717332,"sku":"HAY-151-0022","price":311.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_8fa6df2a-d4ec-4d4f-93b3-de0463d3f8a5.jpg?v=1788706185"},{"product_id":"display-board-and-cable-ext","title":"Hayward Display Board and Cable Ext, HDXFDSPB0001","description":"\u003cp\u003eThe Hayward HDXFDSPB0001 is the display board and cable extension for Universal H-Series Low NOx pool heaters. It is the genuine Hayward part, supplied as the board with its cable so both pieces arrive together.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe display board drives the readout on the heater control panel. It is where set temperature, mode and fault information appear. When the board fails, the heater may still fire but you lose the screen that tells you what it is doing, which makes setting the heater or reading a fault code impossible.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich heaters it serves\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis part belongs to the Universal H-Series Low NOx FD family: H150FD, H200FD, H250FD, H300FD, H350FD and H400FD. Check the model plate on your heater against that list before ordering, and confirm the control is getting power so you are not replacing a good board.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626226168020,"sku":"HAY-151-0040","price":310.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_75039226-5d8a-4f85-9855-a434e9dbe6dc.jpg?v=1788706560"},{"product_id":"h-series-natural-gas-millivolt-valve","title":"Hayward H-Series Natural Gas Millivolt Valve, HAXGSV0001","description":"\u003cp\u003eThe Hayward HAXGSV0001 is the natural gas millivolt gas valve for H-Series pool heaters. It is the genuine Hayward part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMillivolt, not electronic\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA millivolt heater has no ignition board and no separate power supply for the gas control. The pilot flame heats a thermopile, the thermopile produces a small voltage, and that voltage is what holds and operates the gas valve. It is a simple, self powered arrangement, and this valve is the version built for it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFuel type matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the natural gas valve. The propane valve is a different part and the two are not interchangeable. Read the fuel type off the rating plate on the heater before ordering, and confirm the heater is a millivolt model rather than an electronic ignition one.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626284658900,"sku":"HAY-151-8225","price":557.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_557651a7-30c3-403c-9a32-8f5e6b5d5b23.jpg?v=1788707634"},{"product_id":"hayward-uhxposhz14008-positive-pressure-indoor-vent-adapter-for-universal-h-series-h400-heaters-8","title":"Hayward Positive Pressure Indoor Vent Adapter for Universal H-Series H400 Heaters, 8 in., UHXPOSHZ14008","description":"\u003cp\u003eThe Hayward UHXPOSHZ14008 is the 8 in. positive pressure indoor vent adapter for the Universal H-Series H400 pool heater. It is the genuine Hayward part for the indoor case.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIndoor heaters vent differently\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA heater installed inside a building has to move its combustion products out through a vent system rather than straight up into open air. A positive pressure system uses the appliance to push the flue gases along that run, and the adapter is the piece that takes the heater outlet to an 8 in. vent connection so the rest of the system can be built off it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe Universal H-Series\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward built the Universal H-Series to be adaptable at installation, and the vent adapters are part of that: the same heater can be set up outdoors or indoors depending on which components are fitted. This one covers the indoor, positive pressure, 8 in. configuration on the H400.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCheck that the heater is a Universal H-Series H400 and that the installation calls for an 8 in. positive pressure indoor vent. The adapter is supplied on its own; vent pipe and the remaining venting components are separate items.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626298880212,"sku":"HAY-15-1545","price":565.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_c0cf2f9b-ee70-4784-9b07-dc06ebf7e2e7.png?v=1788707784"},{"product_id":"air-pressure-switch-low-nox-after-09-04","title":"Hayward Air Pressure Switch, Low NOx, After 09\/04, IDXL2VPS1930","description":"\u003cp\u003eThe Hayward IDXL2VPS1930 is the air pressure switch for Low NOx H-Series pool heaters built after 09\/04. It is the genuine Hayward part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn air pressure switch is a safety interlock. It has to prove the correct air condition inside the heater before the control board will let the unit go through ignition. When the switch fails, that proof never arrives, and a heater that is otherwise in good order simply will not light.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the right one\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTwo things narrow this part down. It is the Low NOx version, which is a different build from the standard H-Series, and it is for heaters made after 09\/04. Both are worth checking on the rating plate before you order, because the wrong switch either will not mount or will not hold the right setpoint.\u003c\/p\u003e\u003cp\u003eIt is listed in the Hayward parts breakdown for the Low NOx 250 and 400 models.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626485952724,"sku":"HAY-151-1157","price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_fb0d4510-c819-4c6d-95c2-0c60af20177e.jpg?v=1788710846"},{"product_id":"hayward-fdxlbkp1932-blue-bezel-and-keypad-assembly-with-door-for-universal-h-series-low-nox-heaters","title":"Hayward Blue Bezel and Keypad Assembly with Door for Universal H-Series Low NOx Heaters, FDXLBKP1932","description":"\u003cp\u003eThe Hayward FDXLBKP1932 is the blue bezel and keypad assembly with door for Universal H-Series Low NOx heaters. It is the genuine Hayward replacement part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBezel, keypad and door as one assembly. That matters because the keypad membrane, the bezel it is bonded into and the door that protects it are not practical to separate in the field. Ordering the assembly means the panel front goes back together as designed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt covers a wide span of the Universal H-Series Low NOx range: H150FD, H200FD, H250FD, H300FD, H350FD, H400FD and H500FD. Confirm the model on your heater rating plate, and check the manual for your unit before ordering.\u003c\/p\u003e\u003cp\u003eThe usual reasons to replace it are keys that no longer register, or a cracked bezel or door letting weather onto the controls.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626486968532,"sku":"HAY-151-0086","price":209.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_adeae5ba-a5bb-474f-9005-b7bb26f2e504.jpg?v=1788710859"},{"product_id":"control-bezel-assembly-low-nox","title":"Hayward Low NOx Control Bezel Assembly, IDXLCPA1930","description":"\u003cp\u003eThe Hayward IDXLCPA1930 is the ignition module control bezel assembly for H-Series Low NOx pool heaters. It is the genuine Hayward replacement and arrives as a complete assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it is\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe control bezel is the housing that carries the heater control interface at the front of the unit. It takes weather, heat and years of handling, and a cracked or broken bezel leaves the controls exposed. Replacing the assembly restores the original enclosure rather than patching around the damage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfirm the heater first\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward builds H-Series heaters in both standard and Low NOx configurations, and control parts do not always cross between them. Read the data plate on your heater and match the number IDXLCPA1930 against the part you are taking off before you order.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626585632980,"sku":"HAY-151-8154","price":688.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_da4bd403-f2ec-466b-8368-1b84017a258a.jpg?v=1788712742"},{"product_id":"heat-exchanger-assembly-h400","title":"Hayward Heat Exchanger Assembly, H400, HAXHXA1403","description":"\u003cp\u003eThe Hayward HAXHXA1403 is the heat exchanger assembly for the H400 H-Series gas heater. It is supplied as a kit that contains the parts needed to complete the replacement, and it covers the millivolt, ED1 and ED2 versions of the heater.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe design\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe exchanger uses the patented single header V baffle arrangement. That geometry moves heat into the water quickly and leaves virtually no condensation inside the cabinet, which is one of the things that shortens the life of a heater when it goes wrong. The tubing is protected with cupro nickel, the tougher of the materials Hayward specifies, for durability in harder or more aggressive water.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the heater size on the data plate. This assembly is the H400 and does not cross to the smaller models in the range. The union nuts, header o-ring set and CPVC flange nipples around the exchanger are separate part numbers, and a heater old enough to need an exchanger is usually worth refreshing those at the same time.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626602410196,"sku":"HAY-151-1403","price":1810.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_09a775e2-a723-44c7-a4f1-a7d4e7571f8d.jpg?v=1788712938"},{"product_id":"h-series-millivolt-propane-pilot","title":"Hayward H-Series Millivolt Propane Pilot, HAXPLT1932","description":"\u003cp\u003eThe Hayward HAXPLT1932 is the genuine pilot for H-Series millivolt pool heaters running on propane.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMatch the fuel and the control system\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTwo things have to line up before this is the right part. It is the propane version, so natural gas heaters need a different Hayward pilot. And it is for millivolt heaters, the ones whose gas valve is powered by the pilot flame itself rather than by a control board. Check the data plate on your heater if you are not sure which you have.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOn a millivolt heater the standing pilot does double duty. It carries the flame that lights the main burners, and it heats the sensing device that keeps the gas valve open. When the pilot orifice fouls or the assembly fails, the heater either will not light at all or lights and then shuts down within seconds.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626862129364,"sku":"HAY-151-1476","price":237.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_9566906b-d6b0-4781-a6d4-b0133a5e77e9.jpg?v=1788715970"},{"product_id":"h-series-ed1-gas-valve-propane-lp-mv","title":"Hayward H-Series ED1 Gas Valve, Propane, LP, Millivolt, HAXGSV0003","description":"\u003cp\u003eThe Hayward HAXGSV0003 is the genuine propane gas valve for H-Series ED1 millivolt pool heaters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMatch fuel and control system\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTwo details decide whether this is your valve. It is propane, so a natural gas heater needs a different Hayward part. And it is for millivolt heaters, where the pilot flame itself generates the small voltage that holds the valve open, with no control board in the circuit. Check the data plate before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOnce the pilot proves and the thermostat calls for heat, the gas valve is what lets fuel through to the main burners. A heater whose pilot lights and holds but whose burners never come on, with good generator output, is pointing at the valve.\u003c\/p\u003e\u003cp\u003eHave a qualified gas technician do the swap and leak test the connections afterward.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626863800532,"sku":"HAY-151-8227","price":553.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e6ea113a-887a-4c16-a7b3-9dbc818ac8c5.jpg?v=1788716008"},{"product_id":"heat-exchanger-assembly-250","title":"Hayward Heat Exchanger Assembly, 250, HAXHXA1253","description":"\u003cp\u003eThe Hayward HAXHXA1253 is the heat exchanger assembly for the H-Series 250,000 BTU pool heater, covering both the ED1 and ED2 styles. It is the genuine Hayward part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe heat exchanger is where the heater actually does its work. Burner flame heats the exchanger, pool water is pushed through it by the pump, and the heat crosses from one to the other. Everything else in the cabinet exists to control and support that transfer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy they fail\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWater chemistry. Low pH, high calcium and aggressive water all attack the exchanger from the inside, and undersized plumbing or poor flow lets the burner cook it from the outside. The result is a leak, usually visible as water dripping into the burner tray or pooling in the cabinet while the plumbing outside stays dry.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you fit a new one\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the leak is the exchanger and not the header o-rings or the union connections, which can look similar. Then fix whatever caused the failure. A replacement exchanger in water that is still aggressive will not last any longer than the one it replaced.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626965381332,"sku":"HAY-151-1253","price":1704.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_af6fd0b2-a0cd-4eb4-8f0e-be9503b14789.jpg?v=1788718566"},{"product_id":"h-series-heat-exchanger-assembly-200-000-btu","title":"Hayward H-Series Heat Exchanger Assembly, 200,000 BTU, HAXHXA1203","description":"\u003cp\u003eThe Hayward HAXHXA1203 is the heat exchanger assembly for the 200,000 BTU H-Series pool heater. It is the genuine Hayward part, supplied as a complete assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe heat exchanger is the core of the heater. Pool water runs through it, the burner fires beneath it, and the heat moves from one to the other. Everything else in the cabinet exists to control that transfer safely.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen it needs replacing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eExchangers fail by leaking. The tell is water under the heater that appears only when the pump runs, or water dripping inside the cabinet rather than at a plumbing union. Once an exchanger is through, no amount of tightening will save it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you fit a new one\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFind out why the old one failed. Corrosion from low pH, high salt or heavy sanitizer is the usual cause, and a new exchanger installed into the same water will fail the same way. Match the BTU rating exactly: this assembly is the 200,000 BTU version.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626983764180,"sku":"HAY-151-1748","price":1504.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_d7d91931-50e9-4877-85cd-b24eaa9d32be.jpg?v=1788718762"},{"product_id":"gas-valve-kit","title":"Hayward H Series Gas Valve Kit, IDXVAL1931","description":"\u003cp\u003eThe Hayward IDXVAL1931 is the gas valve kit for H Series above ground pool heaters. It is the genuine Hayward replacement, supplied as a kit rather than as a bare valve.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the gas valve does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe gas valve is the component that opens and shuts the fuel supply to the burner on command from the heater control. When it fails, the heater will often go through its start sequence, spark, and then lock out without ever lighting, because no gas reached the burner. Owners tend to suspect the igniter first, but a dead gas valve produces the same symptom.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is a gas appliance component. Replacement means breaking into the fuel line, and that is work for a licensed gas or pool heater technician who can leak test the connection afterwards. Before ordering, confirm IDXVAL1931 is the part number called out for your specific heater model.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627168837844,"sku":"HAY-151-5605","price":450.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_90d38d40-07a4-48f0-81fa-9819848d7391.jpg?v=1788719833"},{"product_id":"h-series-vent-pressure-switch","title":"Hayward H-Series Vent Pressure Switch, IDXLVPS1930","description":"\u003cp\u003eHayward IDXLVPS1930 is the genuine OEM vent pressure switch for H-Series pool heaters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe vent pressure switch is a safety interlock. Before the heater is allowed to light, the switch has to see that the venting is doing its job. If it does not, the control locks the heater out. That is deliberate: a gas appliance that fires without proving its venting is a hazard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDiagnosing it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA failed switch reads as a heater that runs its start sequence and then refuses to fire. Before replacing the switch, rule out a blocked or restricted vent, a failing blower, and a wiring or connector fault, because all of them look the same from the front panel. If the venting is clear and the switch never closes, the switch is the part.\u003c\/p\u003e\u003cp\u003eNever jumper a vent pressure switch to get the heater running. It removes a combustion safety and leaves the underlying fault in place.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627574702292,"sku":"HAY-151-1150","price":122.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_bb41fb29-9554-4231-acb4-11007f0dfcd7.jpg?v=1788723810"},{"product_id":"burner-tube","title":"Hayward Burner Tube for H-Series Heaters, HAXBRN1930","description":"\u003cp\u003eThe Hayward HAXBRN1930 is the genuine replacement burner tube for H-Series gas pool heaters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy burners fail\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBurner tubes sit directly in the fire and take the worst of the heat, condensation and combustion byproducts. Over the years they corrode and can burn through, and the heater starts lighting unevenly or running rough long before anything else on it wears out.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOrdering\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBurner tubes are sold one at a time. Look at the whole tray before you order, because a heater old enough to need one burner has usually aged the rest at the same rate. Confirm the model on the heater data plate against the part number first.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627578142932,"sku":"HAY-151-1480","price":126.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_8ac5e11d-d7e3-4334-bbeb-9598ad63658c.jpg?v=1788723852"},{"product_id":"thermistor-fd","title":"Hayward Thermistor, FD, FDXLTER1930","description":"\u003cp\u003eThe Hayward FDXLTER1930 is the thermistor for the Universal H-Series Low NOx heaters, covering models H150FD, H200FD, H250FD, H300FD, H350FD and H400FD. It is the genuine Hayward replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe thermistor is the heater temperature sensor. Its resistance changes with water temperature, and the control board reads that to decide when to fire the burner and when to shut it down. Every temperature decision the heater makes rests on this one small part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy it is worth checking first\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWhen a heater reads a temperature that is obviously wrong, short cycles, or throws temperature related faults and lockouts, the thermistor is a common cause and one of the cheaper things in the heater to replace. It is worth ruling out before you start looking at boards and gas valves.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627584794836,"sku":"HAY-151-0048","price":58.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e3bb3454-29ae-4fa3-9716-6da461d92fc1.jpg?v=1788723922"},{"product_id":"high-limit-kit","title":"Hayward High Limit Kit, FDXLHLI1930","description":"\u003cp\u003eThe Hayward FDXLHLI1930 is the high limit kit for Universal H-Series Low NOx pool heaters in the 150 to 400 range. It is the genuine Hayward part, the same one the heater left the factory with.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the high limit does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe high limit is a temperature safety. It watches the water leaving the heat exchanger and opens the heating circuit if that water gets hotter than the heater is designed to run. That single component is what stands between a flow problem and a damaged heat exchanger, so it is not something to bypass or jumper out.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDiagnosing before you replace\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA heater that will not fire, or that fires and then shuts down after a few minutes, often points at the high limit. Before fitting a new kit, work through the flow side: a dirty filter, a closing valve, a clogged impeller or a pump running too slow will all push the heater into a high limit trip with a perfectly good switch. If flow is right and the heater still locks out, the high limit itself has failed and this kit puts it back.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOrdering\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the model on your heater data plate is a Universal H-Series Low NOx unit in the 150 to 400 range so you get the right part the first time.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627603407060,"sku":"HAY-151-0035","price":78.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_b77b4c91-b219-4b18-ac28-642ad9385ed5.jpg?v=1788724126"},{"product_id":"flange-pipe-nipples","title":"Hayward CPVC Flange Pipe Nipples for H-Series, HAXNIP1930","description":"\u003cp\u003eHayward HAXNIP1930 is the pair of CPVC flange pipe nipples used on H-Series pool heaters. They are the short flanged pipes that carry water between the heater header and the plumbing unions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy they fail\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese nipples sit at the hottest, most stressed point in the heater plumbing and they take the strain every time a union is tightened. Cracks usually show up at the flange face, and the first symptom is a weep that only appears once the heater is up to temperature.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSold as a pair\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe part number covers both nipples, which suits the way the job actually goes: the inlet and outlet sides are the same age and have seen the same heat, so replacing both at once avoids a second trip. The o-ring set and union nuts for these joints are separate Hayward parts.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627620315348,"sku":"HAY-151-8238","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_ed7a3643-df6d-44d6-b700-f73c77525660.jpg?v=1788725436"},{"product_id":"hayward-idxlbkp1135-bezel-and-keypad-assembly-for-hayward-hs135-heater","title":"Hayward Bezel and Keypad Assembly for HS135 Heater, IDXLBKP1135","description":"\u003cp\u003eThe Hayward IDXLBKP1135 is the bezel and keypad assembly for the Hayward HS135 pool heater. It is the genuine Hayward part, supplied as one unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it covers\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe bezel is the face of the heater control, and the keypad is the set of buttons in it. They come together as a single assembly, so a cracked or sun damaged bezel and a worn keypad are both handled by one part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe symptom\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eKeypads wear out because they are the part everybody touches. Buttons stop responding, or need a harder and harder press, or work only sometimes. Before replacing a control board, it is worth checking whether the keypad is the thing that has failed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the heater model on the data plate. This assembly is for the HS135.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627747881172,"sku":"HAY-IDXLBKP1135","price":222.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_b65250f4-1f7b-485e-b63a-1c6b80e9e27a.png?v=1788727690"},{"product_id":"control-panel-assembly-400ds-ed2-style","title":"Hayward Control Panel Assembly, 400DS ED2 Style, HAXCPA3403","description":"\u003cp\u003eThe Hayward HAXCPA3403 is the control panel assembly for 400DS ED2 style H-Series electronic gas pool heaters. It is the genuine Hayward part, supplied as a complete assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe control panel is the face of the heater, the piece an owner or tech actually touches to set temperature and read the heater back. When the panel cracks, goes blank, stops responding to buttons or takes water damage, the heater can be mechanically fine and still be unusable. Replacing the panel assembly restores that interface without touching the gas train or the heat exchanger.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck the control generation first\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward built the H-Series across more than one control design, and the panels are not interchangeable between them. This assembly is the ED2 style, 400DS version. Confirm from the heater data plate that you have an ED2 unit before ordering, because a panel from a different generation will not mate up.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627844055252,"sku":"HAY-151-1228","price":707.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_73cf4fde-53bf-4ebd-85b1-f6838fd7f4a0.jpg?v=1788728153"},{"product_id":"hayward-fdxlgsk1930-h-series-low-nox-air-side-gasket-kit","title":"Hayward H-Series Low NOx Air Side Gasket Kit, FDXLGSK1930","description":"\u003cp\u003eThe Hayward FDXLGSK1930 is the air side gasket kit for H-Series Low NOx pool heaters. It is the genuine Hayward kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is in scope\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis kit covers the air side of the heater. Hayward supplies the return side tube sheet insulation and the front air box gasket as separate kits, so if a full teardown is planned it is worth checking which of the three you actually need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to fit it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGaskets get replaced while the heater is already apart. Once a gasket has been compressed and heat cycled it will not seal reliably a second time, so pulling the old ones out and putting new gaskets in is standard practice during a burner or heat exchanger service. Confirm the model and series on the heater data plate before ordering, because the Low NOx models do not share every part with the standard ones.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627881640148,"sku":"HAY-151-0027","price":94.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_06fac371-6173-4d65-8593-1c2d12f3f3ca.jpg?v=1788729572"},{"product_id":"combustion-blower-for-h-series-heater-240v","title":"Hayward Combustion Blower for H-Series Heater, 240v, IDXLBWR1930","description":"\u003cp\u003eThe Hayward IDXLBWR1930 is the 240v combustion blower for H-Series pool heaters, listed for the Low NOx 250 and 400 models. It is the genuine Hayward replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the blower does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe blower pushes combustion air through the burner tray. The control has to see that airflow before it will open the gas valve, which is why a heater with a failing blower usually presents as one that will not fire at all rather than one that heats poorly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSigns it is due\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBearing noise on start, a wheel that is slow to spin up, or a heater that locks out on a pressure switch fault with clean vents and a clear flue. Confirm the voltage of the unit coming out, since this is the 240v part.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627904086228,"sku":"HAY-151-1218","price":611.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_4e4a4352-5bb7-4e5a-a500-bf73cb72d250.jpg?v=1788729724"},{"product_id":"o-ring-set-h-series-ed2-ed1","title":"Hayward O-Ring Set for H-Series ED2\/ED1, HAXFOR1930","description":"\u003cp\u003eThe Hayward HAXFOR1930 is the flange o-ring kit for H-Series heaters, supplied as a set of 2. It is also carried under the number O-43, and both refer to the same genuine Hayward set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere the o-rings sit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThey seal the CPVC flange connections at the heater, the joints that get opened whenever the heater is isolated for service. Every time a union comes apart the o-ring takes a chance of being pinched or dragged over a thread, which is why they are one of the more frequently replaced parts on the unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward lists the set for the H-Series and H-Series ED1 models 150 through 400, and for the ED2 style H-Series electronic gas heaters. Because the kit contains two, the sensible move is to change both sides at once rather than open the same connection again next season.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627908542676,"sku":"HAY-151-8211","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_2c95d30a-bdee-4d7b-8e9d-77c49a0e3802.jpg?v=1788729736"},{"product_id":"union-nuts","title":"Hayward ED1\/ED2 Union Nut, 2 Pack, HAXNUT1930","description":"\u003cp\u003eThe Hayward HAXNUT1930 is the union nut for the H-Series heater plumbing connection, supplied as a 2 pack.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it fits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward lists it for induced draft heaters, the Electronic ED2 style, the Millivolt and Electronic ED1 style, and the H150 through H400 millivolt and electronic ignition pool and spa heaters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy two\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA heater has a union at each side, and the two nuts age together under the same heat and the same chemistry. The pack covers both, so you are not back at the equipment pad in a month for the other one.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627954417876,"sku":"HAY-151-8213","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_1dc230cd-9fd2-4123-b4f3-37fa65d4eddd.jpg?v=1788730898"}],"url":"https:\/\/www.activepoolsupply.com\/collections\/hayward-h-series-parts.oembed?page=5","provider":"Active Pool Supply","version":"1.0","type":"link"}