Hayward FDXLTER1930 thermistor for Universal H-Series FD pool heatersHayward Thermistor, FD, FDXLTER1930 In stock$6099
Hayward FDXLTER1930 thermistor for Universal H-Series FD pool heaters
Shop all Hayward

Hayward Thermistor, FD, FDXLTER1930

Ask a questionMPN FDXLTER1930
$6099
In stock
Get volume pricing Request a quote

30 day returns · Easy, with prepaid labels provided

Quick overview

  • Genuine Hayward The factory FDXLTER1930 thermistor, not a generic sensor.
  • Universal H-Series FD Fits the Low NOx models H150FD, H200FD, H250FD, H300FD, H350FD and H400FD.
  • Temperature sensing The thermistor is how the heater knows the actual water temperature.
  • Common fault Bad readings, short cycling and temperature related lockouts often trace back to a failed thermistor.
  • Direct replacement Swaps for the original sensor in the heater.
  • Heater part Listed by Hayward as a pool heater part.
Full description and specifications ↓

Need a hand?

Bilingual support from pool professionals.
(888) 751-8084CallChat with a techChatEmail usEmail

Send us a message

A pool professional will get back to you, usually the same business day.

About Hayward Thermistor, FD, FDXLTER1930, SKU HAY-151-0048. We will include it with your message.

We use your details to answer this message and nothing else.

Frequently bought together

Current item Hayward Thermistor, FD, FDXLTER1930
Hayward

Thermistor, FD, FDXLTER1930

$6099
Hayward Heat Exchanger Assembly for H250FD, FDXLHXA1250
Hayward

Heat Exchanger Assembly for H250FD, FDXLHXA1250

$1,28299
Hayward Natural Gas Valve Kit, FD Series, FDXLGSV0003
Hayward

Natural Gas Valve Kit, FD Series, FDXLGSV0003

$41899
Hayward H-Series Bezel & Keypad Assembly, FDXLBKP1930
Hayward

H-Series Bezel & Keypad Assembly, FDXLBKP1930

$12399
Hayward HDF400 Thermistor, FDXLTER1931
Hayward

HDF400 Thermistor, FDXLTER1931

$6199
Hayward Flame Sensor, Low NOx/Universal, IDXLFLS1930
Hayward

Flame Sensor, Low NOx/Universal, IDXLFLS1930

$9199
Hayward Front Header Assembly, FDXLFHA1930
Hayward

Front Header Assembly, FDXLFHA1930

$31599
Subtotal

Similar products

Other products people compare with this one.

Hayward FDXLBVS1930 blower vacuum switch for Universal H-Series Low NOx heaters Hayward Blower Vacuum Switch, FDXLBVS1930$5099 Hayward FDXLEGL1930 exhaust gas temperature limit for H-Series pool heaters Hayward Exhaust Gas Temperature Limit for H-Series Heaters, FDXLEGL1930$3799 Hayward FDXLPRM1930 polymer return manifold for Universal H-Series and FD Series heaters Hayward Polymer Return Manifold, Universal H-Series and Low NOx FD Series Heaters, FDXLPRM1930$8799 Hayward FDXLHLI1930 high limit kit for Universal H-Series Low NOx pool heaters Hayward High Limit Kit, FDXLHLI1930$8099 Hayward HAXNUT1930 H-Series ED1 and ED2 union nut Hayward ED1/ED2 Union Nut, 2 Pack, HAXNUT1930$3599 Hayward HAXNIP1930 CPVC flange pipe nipples for H-Series heaters, set of 2 Hayward CPVC Flange Pipe Nipples for H-Series, HAXNIP1930$6699 Hayward FDXLWPS1930 H-Series pressure switch Hayward H-Series Pressure Switch, FDXLWPS1930$5299 Hayward FDXLFOR1930 FD header o-ring kit for pool heaters Hayward FD Header O-Ring Kit, FDXLFOR1930$4099 Hayward HAXFCT1930 flow control thermostat for H-Series pool heaters Hayward Flow Control Thermostat, HAXFCT1930$8199 Hayward CHXTRF1930 dual voltage transformer for pool heaters Hayward Dual Voltage Transformer, CHXTRF1930$8899
Hayward HAXBPK1932 new style bypass kit for H-Series heaters Hayward H-Series By-Pass Kit, New Style, HAXBPK1932$8799 Hayward FDXLVPS1930 H-Series Low NOx indoor vent pressure switch kit Hayward H-Series Low NOx Indoor Vent Pressure Switch Kit, FDXLVPS1930$7699 Hayward CHXTSW1930 system on/off switch for CZ, HM2 and H-Series pool heaters Hayward H-Series System On/Off Switch CZ/HM2/H-Series, CHXTSW1930$3399 Hayward CHXTSW1931 3 way toggle system switch for H-Series pool heaters Hayward 3 Way Toggle System Switch, H-Series, CHXTSW1931$3599 Hayward HAXHLI1930 135F hi-limit switch for H-Series pool heaters Hayward 135F Hi-Limit, H-Series, HAXHLI1930$5999 Hayward FDXLBPK1930 bypass cartridge kit for Universal H-Series Low NOx pool heaters Hayward H-Series Low NOx Bypass Cartridge Kit, FDXLBPK1930$5999 Hayward HAXTRK1930 pilot tube kit for H Series pool heaters Hayward H Series Pilot Tube Kit, HAXTRK1930$4399 Hayward FDXLBON1930 natural gas burner orifice kit for Universal H-Series FD heaters Hayward Natural Gas Burner Orifice Kit, FD, FDXLBON1930$6499 Hayward FDXLHMB1930 header mounting base kit for Universal H-Series Low NOx heaters Hayward Header Mounting Base Kit, FDXLHMB1930$6799 Hayward IDXLBVS1930 H-Series blower vacuum switch Hayward H-Series Blower Vacuum Switch, IDXLBVS1930$8199

Product details

The 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.

What it does

The 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.

Why it is worth checking first

When 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.

Specifications
Brand Hayward
Manufacturer part number FDXLTER1930
UPC 610377073790
Part type Pool heater part
Type Thermistor
Fits Hayward Universal H-Series Low NOx heaters, models H150FD, H200FD, H250FD, H300FD, H350FD, H400FD
Shipping weight 0.15 lb
Ships Parcel

Request a quote

Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.

Request a quote

From Hayward

This industry builds more than pools. We build moments. Hayward

Hayward equipment

Hayward Super Pump 1 HP Max Rated 115/230V, W3SP2607X10 Hayward AquaRite Salt System Complete, 40,000 Gallon Pools, W3AQR15 Hayward TracVac Suction Wall Climbing Pool Cleaner for In-ground Pools up to 40 ft, W3HSCTRACCU Hayward Pro-Grid 60 Sqft DE Pool Filter, Valve Not Included, W3DE6020
Shop Hayward equipment

Genuine Hayward parts

Hayward TurboCell T-15 Salt Cell for Inground Pools up to 40,000 Gallons, W3T-CELL-15 Hayward Genuine OEM SP1082 Skimmer Basket, SPX1082CA Hayward Genuine OEM Vari-Flo XL Filter Valve Key Cover Handle Assembly, SPX0714BA Hayward H-Series Bezel & Keypad Assembly, FDXLBKP1930
Shop Hayward parts
Pool cleaners: Hayward TracVac and PoolCleaner suction cleaners lined up on a pool deckPool automation: the Hayward app on a phone held up in front of an infinity poolPool water features: two bubblers in a tiled spa, a woman relaxing on a lounger behind
Hayward makes pumps, filters, heaters, salt systems, cleaners, lighting and automation for residential pools.Shop all Hayward

Customer reviews

More from Hayward

Hayward SP0714T Vari-Flo XL 1.5 in. top mount multiport valve kit, front view Hayward SP0714T Vari-Flo XL 1.5 in. Top Mount Multiport Valve Kit$15899 Hayward CL200EF in-line automatic pool chlorinator, 9 lb tablet feeder Hayward CL200EF In-Line Automatic Pool Chlorinator, 9 lb Chemical Feeder$12499 Hayward GLX-CTL-RITE AquaRite salt system power center, control box only Hayward AquaRite Salt System Power Center (Requires Salt Cell), GLX-CTL-RITE$1,37799 Hayward SPX0714BA Vari-Flo XL valve key cover handle assembly for SP0714T Hayward Genuine OEM Vari-Flo XL Filter Valve Key Cover Handle Assembly, SPX0714BA$14799 Hayward FDXLHXA1250 heat exchanger assembly for the H250FD Universal H-Series low NOx heater Hayward Heat Exchanger Assembly for H250FD, FDXLHXA1250$1,28299 Hayward TurboCell T-15 W3T-CELL-15 salt cell, replacement for AquaRite systems Hayward TurboCell T-15 Salt Cell for Inground Pools up to 40,000 Gallons, W3T-CELL-15$1,09900 Web Price Paralevel Startup Kit, part number 004-760-2921-00 Hayward Paralevel Startup Kit, 004-760-2921-00$5799 Hayward GLX-PCB-PRO main PCB for Goldline ProLogic and AquaPlus controls Hayward Main PCB Replacement for Goldline ProLogic Automation and Chlorination After 10/2008, GLX-PCB-PRO$1,07599 Hayward SP10841 Auto-Skim skimmer for vinyl and fiberglass pools, white with square lid Hayward Auto-Skim Skimmer for Vinyl/Fiberglass Pools, 1.5" FPT, Square Lid, White, SP10841$19299 Hayward SPX0714L cover o-ring for SP0714T Vari-Flo XL valve Hayward Cover O-Ring for SP0714T Vari-Flo XL Valve, SPX0714L$1799
Paramount 005422901500 two lamp UV kit with boot and o-ring for HydraPure and Ultra UV2 sanitizers Paramount 2-Lamp Kit with Boot and O-Ring for HydraPure and Ultra UV2 Sanitizers, 005422901500$26899 Hayward W3T-CELL-9 TurboCell T-9 salt cell with 15 ft cord Hayward TurboCell T-9 Salt Cell for Inground Pools up to 25,000 Gallons, Genuine AquaRite Replacement, W3T-CELL-9$89900 Web Price Hayward SP0710X62 Vari-Flo 1.5 in. side mount multiport valve for Pro Series sand filters Hayward Vari-Flo 1.5" Side Mount Multiport Valve for Sand Filters, SP0710X62$18899 Hayward SPX1082CA genuine OEM skimmer basket, 7 in. top diameter Hayward Genuine OEM SP1082 Skimmer Basket, SPX1082CA$2399 Hayward SPX1091Z7 1-1/2 in. combo hose adapter, 2 pack Hayward 1-1/2" Combo Hose Adapter for Filters, Pumps, Skimmers and Chlorine Feeders (2 Pack), SPX1091Z7$899 Hayward SPX0740BA key cover and handle assembly for SP740DE multiport valve Hayward OEM Key Cover and Handle Assembly for SP740DE, SPX0740BA$19799 Hayward CX200XRE 200 sq. ft. replacement filter cartridge for the SwimClear C200S Hayward Genuine OEM SwimClear C200S Filter Cartridge, CX200XRE$20299 Hayward HLXPROUPG Pro Logic Retrofit Kit, OmniPL Hayward Pro Logic Retrofit Kit, OmniPL, HLXPROUPG$1,99900 Web Price Hayward SP071620T 2 in. top mount backwash valve with clamp for Pro Series S310T and S310T2 Hayward 2" Top Mount Backwash Valve with Clamp, Fits Pro Series Sand Filters S310T / S310T2, SP071620T$25399 Hayward FDXLGSV0003 natural gas valve kit for Universal H-Series FD heaters Hayward Natural Gas Valve Kit, FD Series, FDXLGSV0003$41899

Questions and answers

What people ask about this product, answered by our pool techs.

Which heaters does this thermistor fit?
The Hayward Universal H-Series Low NOx heaters, models H150FD, H200FD, H250FD, H300FD, H350FD and H400FD.
What does a thermistor do?
It is the temperature sensor. The control board reads its resistance to work out the water temperature and decides when to fire and when to stop.
What are the symptoms of a bad one?
A temperature readout that is clearly wrong, a heater that short cycles, or temperature related fault codes and lockouts.
Is this a genuine Hayward part?
Yes. It is the Hayward OEM thermistor, part number FDXLTER1930.
Ask your own question