{"title":"Jandy LXi \u0026 Legacy Heater Parts","description":"\u003cp\u003eReplacement parts for Jandy LXi \u0026amp; Legacy Heater, genuine OEM and compatible aftermarket.\u003c\/p\u003e","products":[{"product_id":"hot-surface-ignitor","title":"Jandy OEM Hot Surface Ignitor for Legacy LRZE Pool and Spa Heater","description":"\u003cp\u003eThis is the Jandy R0457501 hot surface ignitor for the Legacy model LRZE pool and spa heater. It is the genuine Jandy OEM part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat a hot surface ignitor does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eInstead of a standing pilot, the heater energizes a ceramic element that glows hot enough to light the gas at the burner. It is a wear part. The element degrades over years of heating and cooling, and eventually it no longer reaches ignition temperature, so the heater goes through its sequence and never lights.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWatch the ignitor through a start cycle if you can. If it never glows, or glows dull and uneven, it is the part. If it glows properly and the heater still will not light, look at the gas supply and the control side instead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHandle the ignitor by its bracket. The ceramic element is brittle and skin oils shorten its life, so keep your fingers off it and never force it into the mounting.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48626221678804,"sku":"LAR-151-1124","price":263.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_5b4b0f0c-1d4e-4a8b-96dd-3eb98aca2140.jpg?v=1788706472"},{"product_id":"transformer-115v-220v-24v","title":"Teledyne Laars Transformer 115V-220V\/24V","description":"\u003cp\u003eThe Teledyne Laars R0061100 is the control transformer for Jandy Laars pool heaters. It takes the 115V or 220V supply feeding the heater and steps it down to 24V, which is the voltage the ignition control and the rest of the low voltage circuit run on.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat fails and how it shows\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA transformer either works or it does not. When it fails, the control board and the ignition sequence get nothing, so the heater looks completely dead even though line power is present at the panel. Checking for 24V leaving the transformer while line voltage is arriving at it settles the question quickly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the transformer listed for the Jandy Laars Lite and Lite2, the Jandy Series 2, the Laars LX and LT, and the Lite2 model LJ. It mounts in the heater control compartment in place of the original, so no rework of the panel is involved.\u003c\/p\u003e","brand":"Waterpik Technologies","offers":[{"title":"Default Title","offer_id":48627367837908,"sku":"LAR-151-5094","price":101.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_25fee471-5a26-4319-a720-d59711ffe443.jpg?v=1788722880"},{"product_id":"lrze-gas-valve-natural","title":"Jandy LRZE Gas Valve, Natural","description":"\u003cp\u003eThe Jandy R0494500 is the genuine replacement natural gas valve for Legacy model LRZE pool and spa heaters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the valve does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe gas valve is the component that admits gas to the burner tray when the control system calls for heat, and shuts it off the moment the call ends or a safety opens. When it fails the heater usually goes through its ignition sequence normally and then locks out because no gas ever reaches the burners.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNatural gas only\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the natural gas version of the valve. A propane LRZE takes a different part, so confirm which fuel your heater is set up for before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFitting a gas valve means opening the gas line. That is work for a qualified technician who can remake the joints properly and leak test them before the heater is put back in service.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48628828537044,"sku":"LAR-151-1122","price":406.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_26b68e15-aa25-4ace-b531-32b58bb305a6.jpg?v=1788753463"},{"product_id":"natural-gas-valve-w-street-elbow","title":"Teledyne Laars Natural Gas Valve with Street Elbow","description":"\u003cp\u003eR0455200 is the Teledyne Laars natural gas valve, supplied together with its street elbow. It is catalogued with the Jandy Laars LXi pool heater parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the valve does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe gas valve is the component that opens the gas supply when the heater calls for heat and shuts it off when the call ends. A heater that will not light, or one that lights and then drops out, often traces back to the valve once ignition and the pressure switches have been ruled out.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the natural gas version. Confirm the fuel your heater runs on and match the part number against your existing valve, and have a qualified gas technician carry out the change and leak test the connections.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48628834173140,"sku":"LAR-151-4804","price":383.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_1d5e8e28-a3e2-40e5-8986-203b175f61a4.jpg?v=1788753740"},{"product_id":"flame-sensor-rod","title":"Jandy Flame Sensor Rod","description":"\u003cp\u003eThe Jandy R0458601 is the flame sensor rod for the Legacy model LRZE pool and spa heater. It is the genuine Jandy part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe flame sensor rod sits in the burner flame and tells the heater control that ignition succeeded. Without that signal the control assumes the burner never lit and closes the gas valve as a safety measure. The result an owner sees is a heater that fires, runs for a few seconds, and then shuts itself down again.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA rod that is heavily oxidized, cracked at the ceramic, or no longer producing a reliable signal after cleaning is due for replacement. The hot surface ignitor for the Legacy LRZE is a separate part, and many techs change both while the burner tray is open.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48628851015892,"sku":"LAR-151-1125","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_23098f9e-da7d-4364-a3d8-ab46022c5817.jpg?v=1788755335"},{"product_id":"high-limit-switch-150-f","title":"Teledyne Laars High-Limit Switch, 150 Degrees F","description":"\u003cp\u003eThe Teledyne Laars R0023000 is a high-limit switch rated at 150 degrees F, used across a wide range of Jandy Laars pool heaters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe high limit is a safety cutout. It watches water temperature and shuts the heater down if that temperature climbs past its setpoint, which protects the heat exchanger and everything downstream of it. Because it is a safety device, it is not a part to bypass or defeat when it starts acting up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis switch is listed for the Jandy Laars Lite and Lite2, Series 2, LX and LT, the Lite2 model LJ, the LXi, and the Laars XL-2 and oil fired XL-3. Laars uses limit switches at more than one temperature rating, so confirm that 150 F is the rating your heater specifies.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA limit that trips repeatedly is frequently reporting a real problem rather than failing. Low flow from a dirty filter, a closed valve or a tired pump, and scale in the heat exchanger, all show up as nuisance limit trips. Rule those out first, then replace the switch if it is genuinely faulty.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48629105590484,"sku":"LAR-151-2540","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_bd4b9c39-2638-4294-a1b1-6670d8f2553c.jpg?v=1788759750"},{"product_id":"rear-header","title":"Jandy Rear Header for LXi Low NOx Heater","description":"\u003cp\u003eThe Jandy R0454200 is the rear header for the LXi Low NOx pool heater, supplied with the hardware and gaskets needed to fit it. It is the genuine part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the header does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe headers close off each end of the heat exchanger and route pool water through it. They see every gallon that passes through the heater, at temperature, which is why they are the part that corrodes and cracks rather than the tubes themselves. Low pH water, high salt levels and a poorly bonded system all shorten their life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFront or rear\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the rear header. The front header is a separate part, so trace the leak before ordering rather than guessing from where the water reaches the pad. Water travels along the base of a heater and can appear a long way from the actual crack.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUse the gaskets that come with it. A gasket that has been compressed once has taken its set and will not seal again, and a header joint that weeps after reassembly means the whole job comes apart a second time.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48629173256404,"sku":"LAR-151-1206","price":284.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_76aeff95-1a5e-43da-8ca4-fd426e440983.jpg?v=1788760054"},{"product_id":"lrzm-pool-spa-control","title":"Teledyne Laars LRZM Pool\/Spa Control","description":"\u003cp\u003eTeledyne Laars R0472500 is the pool and spa control used on LRZM model heaters. It is the assembly that tells the heater which body of water it is firing for.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOn a combined pool and spa system the heater has to know whether it is heating the pool or the spa, because the two run at very different temperatures. The pool and spa control is the switching and setting assembly that makes that call and passes it through to the heater controls.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis part is specific to the LRZM heater. Confirm the model on the heater data plate first, since Laars used different controls across its heater families and they are not interchangeable.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48633371066580,"sku":"LAR-151-1233","price":245.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_177774a3-39bb-4068-8af5-2c52cfd6d25c.jpg?v=1788798612"},{"product_id":"ignition-control","title":"Teledyne Laars Ignition Control R0491300","description":"\u003cp\u003eThe R0491300 is the ignition control for LRZE model pool and spa heaters. It is the module that runs the heater from a call for heat to a lit burner.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it controls\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOn a call for heat the ignition control drives the igniter, opens gas at the right point in the sequence and watches for proof of flame. If it does not see what it expects, it shuts the sequence down rather than keep gas flowing. That is why a failed control shows up as a heater that goes through the motions and never lights, or one that lights and then drops out.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSeveral other faults produce the same symptom, including gas supply, the igniter, the flame sensor and the safety switches. Have the sequence diagnosed properly first. Ignition parts sit on the gas train of a fired appliance, so the work belongs to a qualified technician.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48633453805780,"sku":"LAR-151-1237","price":172.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_958aec07-164a-4531-bd73-87dddfdb9661.jpg?v=1788804948"},{"product_id":"jandy-r0460105-air-chamber-cover-for-lxi-400-low-nox-pool-spa-heater","title":"Jandy Air Chamber Cover for LXi 400 Low NOx Pool\/Spa Heater","description":"\u003cp\u003eThe Jandy R0460105 is the air chamber cover for the LXi 400 Low NOx pool and spa heater. It is the genuine Jandy service part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the cover does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe air chamber is the sealed space that feeds combustion air to the burner. Its cover has to close that chamber properly, because the burner is tuned around a known airflow. A cover that is warped, damaged or missing lets the chamber draw air it was never meant to, and combustion suffers for it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLXi service parts are specific to model and BTU size. Check your heater manual and confirm you have the 400 Low NOx before ordering, so the cover matches the chamber it has to seal.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48633642156244,"sku":"LAR-151-1748","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_540ff629-ff83-494e-9ed9-41d9902d010c.jpg?v=1788808110"},{"product_id":"power-distribution-circuit-board","title":"Teledyne Laars Power Distribution Circuit Board","description":"\u003cp\u003eR0458100 is the Teledyne Laars power distribution circuit board, listed against Jandy Laars LXi pool heaters. It is the genuine factory board.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe distribution board is the stage between the incoming supply and the heater control circuits. It is not the board that runs the heat logic. It is the one that feeds everything else, which is why a fault there tends to show up as a heater that is simply dead rather than as a specific fault code.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThere is more than one board inside a Laars cabinet and they look broadly alike. Read the number on the board you removed and confirm it is R0458100. Power down at the breaker before opening the control compartment.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48633768411348,"sku":"LAR-151-4812","price":154.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_b4b01d07-599a-4406-bc9a-d73b511712d2.jpg?v=1788814998"},{"product_id":"flame-sense-rod","title":"Teledyne Laars Flame Sense Rod","description":"\u003cp\u003eR0334800 is the Teledyne Laars flame sense rod for Jandy Laars LX and LT pool heaters. It is the genuine factory part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow flame sensing works\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOnce the burner lights, the ignition control needs proof that there is actually a flame before it will keep the gas valve open. The sense rod supplies that proof: it sits in the flame and passes a very small rectified current back to the control. If the control cannot read that current, it shuts the gas within seconds, no matter how well the heater lit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe symptom to look for\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA heater that ignites cleanly and then drops out a few seconds later is almost always a sensing problem rather than an ignition problem. Carbon, oxide, a bent rod or a cracked ceramic insulator all cut the current the control is looking for. Cleaning helps a lightly coated rod; a pitted or cracked one gets replaced.\u003c\/p\u003e","brand":"Waterpik Technologies","offers":[{"title":"Default Title","offer_id":48633768640724,"sku":"LAR-151-1028","price":73.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_d98f3404-32d4-4c43-8fa7-4b83d8dd75af.jpg?v=1788815003"},{"product_id":"coupling-nut-kit-with-flange","title":"Teledyne Laars Coupling Nut Kit with Flange","description":"\u003cp\u003eThe Teledyne Laars R0327300 is the coupling nut kit with flange, the threaded connection hardware used on Laars equipment plumbing. It is supplied as a kit, so the nut and the flange arrive together.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it is used\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLaars lists this kit under the LX and LT heater parts group, and it also appears in the Jandy DEL Series D.E. filter parts for the DEL48 and DEL60. A coupling nut holds the union between the equipment and the pool plumbing, and it carries system pressure every minute the pump runs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA nut that is cracked, cross threaded or will not draw down evenly weeps at the joint no matter how hard you tighten it, and overtightening a damaged nut usually splits it further. Changing the nut and the flange as a pair puts fresh sealing faces on both sides of the connection.\u003c\/p\u003e\u003cp\u003eMatch the part number to what you removed before ordering. Heater and filter plumbing hardware changed across series, and a nut that is close but not identical will not seal.\u003c\/p\u003e","brand":"Waterpik Technologies","offers":[{"title":"Default Title","offer_id":48633769165012,"sku":"LAR-151-1555","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_05e0420d-9045-4425-acac-ffd136990dca.jpg?v=1788815033"},{"product_id":"ignitor-laars-lx-lt-low-nox","title":"Jandy LX\/LT Hot Surface Ignitor for Low NOx Heater","description":"\u003cp\u003eThe Jandy R0386900 is the hot surface ignitor for the LX and LT Low NOx pool heaters. It is the genuine part for those models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA hot surface ignitor takes the place of a standing pilot. When the heater calls for heat, current runs through the element until it glows, and the gas lights off that glowing surface. Nothing burns between cycles, which is why these heaters do not need relighting after a windy night.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe classic symptom is a heater that starts its sequence, runs the blower, and then locks out without ever lighting. Ignitor elements crack and burn out with age and thermal cycling, and once the element is open the heater has no way to light. The flame sense rod is a separate part on these heaters, so a unit that does light and then immediately shuts down is usually pointing at the sensor rather than the ignitor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm your heater is the Low NOx model, since the standard LX\/LT ignitor is a different part number. Handle the new ignitor by its base. The element is brittle and easy to crack before it ever gets power.\u003c\/p\u003e","brand":"Waterpik Technologies","offers":[{"title":"Default Title","offer_id":48633786007764,"sku":"LAR-151-3869","price":125.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_53a6832d-9cc7-406c-adad-7a4ca5fc56d8.jpg?v=1788816450"},{"product_id":"lrzm-pilot-generator","title":"Teledyne Laars LRZM Pilot Generator","description":"\u003cp\u003eThe Teledyne Laars R0471500 is the pilot generator for the LRZM model pool and spa heater. It is the genuine Laars part, the same one fitted at the factory.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOn a standing pilot heater the pilot flame has to prove itself before the main burner is allowed to fire. The pilot generator sits in that flame and turns its heat into the small electrical output that holds the gas valve open. As the generator ages its output falls, and the heater starts lighting the pilot only to shut down a moment later.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCheck the pilot itself first. A partly blocked orifice or a flame that no longer wraps the generator tip produces the same fault and costs nothing to correct. If the pilot burns clean and steady and the heater still drops out, the generator is the part to change.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48633922879700,"sku":"LAR-151-1500","price":116.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_ef487e63-e02c-4d47-b29c-0e455d58ad30.jpg?v=1788817271"},{"product_id":"vent-fusible-link-240-c","title":"Jandy Vent Fusible Link, 240 C","description":"\u003cp\u003eThe Jandy R0524300 is the vent fusible link rated at 240 C, used across Model 200, 260 and 400 JXi heaters, the Legacy LRZE and LRZM, and the LXi Low NOx heaters. It is the genuine Jandy part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe fusible link is a deliberate weak point in the vent path. If the temperature there climbs past where it should be, the link melts, the circuit opens, and the heater shuts down. It is a one shot device: there is nothing to reset, and a link that has operated has to come out and be replaced.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo not stop at the part\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA blown link is a symptom, not the fault. Something made the vent hot enough to melt it: a blocked or restricted flue, a downdraft, a bad draft hood installation, or a combustion problem inside the heater. Fitting a new link without finding that cause simply means the next one goes as well.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMatch the rating\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFusible links come in different temperature ratings and they are not interchangeable. This one is specified at 240 C for these heaters. Fit the rating the manufacturer calls for.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48633924911316,"sku":"LAR-151-4101","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_05833288-16d5-4ed6-a1e0-92c6a67a9b03.jpg?v=1788817320"},{"product_id":"high-limit-switch-harness","title":"Teledyne Laars High Limit Switch Harness R0457400","description":"\u003cp\u003eThe Teledyne Laars R0457400 is the high limit switch harness, the wiring assembly that ties the hi-limit switches into the heater control circuit. It is catalogued under Jandy Laars LXi heater parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHarness, not switch\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis listing is the wiring only. The high limit switches themselves are separate parts, so if the switch has failed you need that part as well as, or instead of, this one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy harnesses fail\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe inside of a heater cabinet is a hot place for a connector to live. Over years of cycling, terminals discolor, insulation goes brittle and spade connectors lose their spring. The fault that follows is intermittent: the heater locks out on high limit, then runs fine when someone wiggles the wiring. Replacing the harness clears that class of fault properly instead of chasing it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you start\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIsolate the heater at the breaker before opening the cabinet, and photograph the existing routing so the new harness goes back the same way.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48634260029652,"sku":"LAR-151-1212","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_f39eb0a2-14bb-44d5-b31c-f270bf8778a4.jpg?v=1788827834"},{"product_id":"cap-sensor-press-switch-w-o-ring","title":"Teledyne Laars Cap Sensor\/Pressure Switch with O-Ring","description":"\u003cp\u003eThe Teledyne Laars R0455400 is a cap sensor and pressure switch supplied with its O-ring. It is the genuine Teledyne Laars part, catalogued under Jandy Laars LXi heater parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA water pressure switch is the heater interlock that confirms flow through the heat exchanger before the burner is allowed to light. It is a safety device, not a convenience. A heater that fires without adequate flow will damage its exchanger fast, which is why a switch that has failed should be replaced rather than jumpered around.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe available information lists this part under Jandy Laars LXi heater parts without naming specific models. Check R0455400 against the parts list for your heater to be sure it is the right switch. When you fit it, use the O-ring that comes in the box rather than the old one, since a compressed O-ring is a common source of a slow weep at the port.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48634421641428,"sku":"LAR-151-1208","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_2a0ee334-2ec6-4d8e-a99e-73da9564a3d7.jpg?v=1788830259"},{"product_id":"pilot-tubing","title":"Teledyne Laars Pilot Tubing","description":"\u003cp\u003eThe Teledyne Laars R0037000 is the replacement pilot tubing for the Jandy Laars Lite and Lite2 heaters, the Series 2 heaters and the Legacy LRZM. It is the genuine Laars part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe pilot tubing is the small gas line running from the gas valve out to the pilot burner. The pilot is what proves and lights the main burners, so the whole heater depends on that short piece of line staying clear and tight. Age, corrosion and being knocked during other repairs are the usual reasons it needs replacing, and the symptom is a heater that will not light or that drops out shortly after it does.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the model and vintage of your heater before ordering, since the Series 2 listings cover the 1993 to 1996 ESG millivolt and ESC electronic ignition units. The work itself sits on the gas train and should be done and leak tested by a licensed gas technician.\u003c\/p\u003e","brand":"Waterpik Technologies","offers":[{"title":"Default Title","offer_id":48634495467732,"sku":"LAR-151-7843","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_95006b3f-90bd-45ab-8bb9-01b71cc95c8f.jpg?v=1788832851"},{"product_id":"fusible-link","title":"Teledyne Laars Fusible Link R0012200","description":"\u003cp\u003eThe Teledyne Laars R0012200 is the fusible link fitted to a broad range of Jandy Laars pool heaters, from the Series 2 units of the mid nineties through the Lite2 model LJ, the LX and LT, the LXi, the Hot Shot and the Legacy LRZE and LRZM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it is\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA fusible link is a deliberately weak point in the control circuit. It is built to fail at a set temperature, and when the heater gets hotter than it should the link melts, the circuit opens and the heater stops. That is the whole design: it gives up so the heat exchanger, the burner tray and the surrounding cabinet do not.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDiagnosing a dead heater\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA heater that will not fire at all, with no obvious fault on the control board, is often a blown link. It is a cheap part and an easy check on the parts breakdown for your model. What it is not is a fix on its own.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFind out why it opened\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe link only goes when something has overheated the unit. Restricted water flow is the most common cause, from a dirty filter, a closed valve or an undersized pump. A scaled or soot fouled heat exchanger and a blocked or poorly drawing vent do the same. Sort the cause out first, or the replacement link will do exactly what the last one did.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48634802667732,"sku":"LAR-151-2545","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_56fa9316-d6de-4939-87d3-1e356c059318.jpg?v=1788837671"},{"product_id":"header-coupling-o-ring","title":"Teledyne Laars Header Coupling O-Ring","description":"\u003cp\u003ePart R0337600 is the header coupling o-ring for Jandy Laars LX and LT pool heaters. It seals the coupling joint where the header sections meet.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe header carries pool water across the top of the heat exchanger, and the coupling joint sees full system pressure every time the pump runs. The o-ring is the only thing between that pressure and the outside of the heater, so when it goes the symptom is water tracking down from the coupling.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAny time the header coupling is taken apart, and any time there is a leak at that joint. Rubber in a heater header goes through constant heating and cooling, which hardens it and leaves it compressed in the shape of the groove. Once it has taken that set it will not seal again, even reassembled carefully.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe part is listed as a header coupling o-ring and is also described as an o-ring set. Count the seals your header coupling actually uses so you order the right quantity.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48635037483220,"sku":"LAR-151-1054","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_d932223b-db19-45ce-8f43-3d13e8d5288f.jpg?v=1788840236"},{"product_id":"blower-assembly-w-gaskets","title":"Zodiac LXi Blower Assembly with Gaskets | R0455600","description":"\u003cp\u003eZodiac LXi Blower Assembly with Gaskets. OEM part number R0455600.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48647580844244,"sku":"LAR-151-4806","price":381.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/22979_0_2020112152628.jpg?v=1789034971"},{"product_id":"universal-control-user-interface-legacy-lrze","title":"Zodiac Jandy Legacy LRZE Heater and EE-Ti Heat Pump Universal Control User | R3008800","description":"\u003cp\u003eJandy Legacy LRZE Heater and EE-Ti Heat Pump Universal Control User Interface | R3008800\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48647696941268,"sku":"AEH-151-1033","price":516.16,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/679_1_201211914113.jpg?v=1789035364"},{"product_id":"blower-assembly","title":"Zodiac Jandy Laars LX \u0026 LT Blower Assembly | R0329800","description":"\u003cp\u003eZodiac Jandy Laars LX \u0026amp; LT Blower Assembly. OEM part number R0329800.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48647800520916,"sku":"LAR-151-2513","price":404.97,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/55099_2_201232617159.jpg?v=1789035987"},{"product_id":"transformer-2","title":"Zodiac LXi TRANSFORMER | R0456300","description":"\u003cp\u003eZodiac LXi TRANSFORMER. OEM part number R0456300.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48647993065684,"sku":"LAR-151-4807","price":157.55,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/55272_1_201319102820.jpg?v=1789036825"},{"product_id":"hot-surface-ignitor-1","title":"Zodiac Jandy Laars LXi Hot Surface Ignitor | R0457500","description":"\u003cp\u003eZodiac Jandy Laars LXi Hot Surface Ignitor. OEM part number R0457500.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48648486781140,"sku":"LAR-151-4811","price":142.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/55276_1_2011916145525.jpg?v=1789058681"},{"product_id":"high-limits-set","title":"Zodiac LXI SERIES HIGH LIMIT SET | R0457200","description":"\u003cp\u003eZodiac LXI SERIES HIGH LIMIT SET. OEM part number R0457200.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48648547795156,"sku":"LAR-151-4572","price":115.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/55262_1_20133172429.jpg?v=1789058782"},{"product_id":"temperature-sensor-w-sleeve-gasket","title":"Zodiac LXi Temp Sensor With Sleeve \u0026 Gskt | R0456500","description":"LXi Temp Sensor W\/ Sleeve \u0026amp; Gskt R0456500\u003cbr\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48648694104276,"sku":"LAR-151-4809","price":122.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/55274_1_2012429104413.jpg?v=1789059006"},{"product_id":"temperature-sensor-plug","title":"Zodiac LRZM LRZE TEMP SENSOR PLUG | R0456800","description":"\u003cp\u003eZodiac LRZM LRZE TEMP SENSOR PLUG. OEM part number R0456800.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48649574219988,"sku":"LAR-151-1210","price":17.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/54939_1_20133172225.jpg?v=1789055953"},{"product_id":"sensor-stud-lx-lt-repl-kit","title":"Zodiac SENSOR STUD LX\/LT REPL KIT | R0383200","description":"\u003cp\u003eZodiac SENSOR STUD LX\/LT REPL KIT. OEM part number R0383200.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48650259235028,"sku":"LAR-151-2726","price":30.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/55186_1_20108418494.jpg?v=1789072871"},{"product_id":"teledyne-laars-ignition-control-lx-lt-low-nox","title":"Zodiac IGNITION CONTROL LX\/LT LOW NOX | R0386800","description":"\u003cp\u003eZodiac IGNITION CONTROL LX\/LT LOW NOX. OEM part number R0386800.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48650263003348,"sku":"LAR-151-3868","price":266.69,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/55224_1_20111213101130.jpg?v=1789072879"},{"product_id":"3-4-x-3-4-polymer-pressure-relief-valve","title":"Zodiac Jandy Pressure Relief Valve for LX-LT Heaters | R0336100","description":"\u003cp\u003eZodiac Jandy Pressure Relief Valve for LX-LT Heaters. OEM part number R0336100.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48650263134420,"sku":"LAR-151-3081","price":85.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/55205_1_20101129182434.jpg?v=1789072880"}],"url":"https:\/\/www.activepoolsupply.com\/collections\/jandy-lxi-legacy-parts.oembed?page=2","provider":"Active Pool Supply","version":"1.0","type":"link"}