Hayward Thermistor for FD Heaters | FDXLTER1930
- In stock, ready to ship
- Backordered: contact us for ETA
- SKU:
- FDXLTER1930
-
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About This Item
The Hayward Thermistor (FDXLTER1930) is the OEM replacement temperature-sensing thermistor for the Universal H-Series FD pool and spa heater line.
IMPORTANT: PROFESSIONAL SERVICE REQUIRED
Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high-voltage components without proper certification.
Mounted in the manifold adapter inlet, this thermistor monitors water temperature and communicates with the heater's control system to regulate burner operation. Replacing a failed thermistor restores accurate temperature sensing and proper heater cycle control.
Specifications
| Hayward Part Number | FDXLTER1930 |
| UPC | 610377073790 |
Poolaroo Pro Tip
A faulty thermistor often presents as erratic temperature readings, a heater that short-cycles, or a heater that fails to ignite when the pool temperature is below the set point. Before ordering, confirm the fault is isolated to the thermistor — check for error codes in your heater's control panel that specifically indicate a temperature sensor fault. Always power down the heater completely and allow the unit to cool before any component access.
