Hayward H-Series Heater Thermostat w/ Knob | HAXTST1930

Regain precise control over your pool or spa temperature with the Hayward HAXTST1930 Thermostat Assembly. This genuine OEM replacement part is designed for the classic Hayward H-Series "Millivolt" and "Electronic" atmospheric heaters. As the primary user interface for temperature regulation, this component allows you to set your desired heat level and ensures the burner tray activates and deactivates at the correct intervals.

Over time, mechanical thermostats can lose their calibration due to internal component wear or exposure to the high-heat environment of a pool heater. If your heater is failing to reach the set temperature, staying on indefinitely, or failing to spark despite having power, the thermostat is a likely culprit. Replacing the assembly with this factory-authorized kit restores the accuracy and safety of your heating system.

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