Quick Overview
Hayward FDXLTER1931 Thermistor, Temp Sensor, FD Heater. For models made in 2020 and after
Check the manual or the serial number of your heater to define whether you need FDXLTER1930 or FDXLTER1931. The 5th and 6th digits indicate the year of production, the 7th and 8th digits indicate the month of production
| Heater Serial Number | Part number required |
| xxxx2001 and newer | FDXLTER1931 |
| xxxx1912 and older | FDXLTER1930 |
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FDXLTER1931 Hayward Thermistor, Temperature Sensor
The FDXLTER1931 Hayward Thermistor,Temperature Sensor is a suitable replacement for temperature sensors on Hayward heater models H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP. If your Hayward heater is in need of a new temperature sensor, be sure that the FDXLTER1931 fits your existing model for a fast fix.
Changing out the FDXLTER1931 Hayward Thermistor, Temperature Sensor is a bit of a tricky maneuver, as there is limited space where this component is housed. We recommend that you seek the help of a pool heating professional to change out your temperature sensor.
Used with:
- Hayward H-Series Above-Ground 135K BTU Heater (Made in 2020 and After) - H135ID1, H135ID1P
- Hayward Universal H-Series Low NOx Heater (Made in 2020 and After) - H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP, H500FDN, H500FDP
Might be compatible with older models as long as the part number is listed in the product manual
Related Products
NOTE: Product images are for illustration purposes only and may not exactly match the actual product due to seasonal model, color or design changes. When shopping for parts we strongly recommend to check the SKU or "Part Number" which is listed on each product page. If you are unsure whether this is the correct product or need assistance please contact us.