Hayward Thermistor | IDXLTER1930

The Hayward IDXLTER1930 Thermistor is a genuine OEM temperature sensing component designed for use in compatible Hayward pool and spa heaters. Thermistors are precision temperature sensors that provide accurate measurements of water and system temperatures to the heater’s control board. These readings help the system regulate burner cycles, maintain set temperatures, manage defrost sequences, and ensure safe operation.

Over time, exposure to heat, water, and system cycling can cause thermistors to drift or fail, leading to inaccurate readings, poor temperature control, or heater fault codes. Replacing a worn or failed thermistor with the IDXLTER1930 restores accurate temperature feedback, improves system efficiency, and enhances overall heater performance.

Hayward IDXLTER1930 Thermistor Compatibility

• Designed for Hayward pool and spa heaters that specify the IDXLTER1930 thermistor.

• Works with both natural gas and propane‑fueled heater systems requiring precision temperature monitoring.

• Suitable for residential and light commercial heater installations.

• Confirm your heater model and thermistor requirements before purchasing — not all heaters use the same sensor design.