42002-0024S 42001-0063S 42001-0053S Pool Heater Repair Kit

Complete 3-piece sensor kit: This pool heater repair kit includes the 42002-0024S flue sensor, the 42001-0053S heating thermistor, and the 42001-0063S high limit switch. A complete replacement set for Pentair Sta-Rite, MasterTemp, and Max-E-Therm pool/spa heaters – restores full electrical system functionality. 42002-0024S flue sensor: Made of corrosion-resistant stainless steel, this sensor prevents combustion temperatures from exceeding 260°C. Resolves error codes E-02, E-05, and E-06 – reducing unexpected downtime and ensuring safe heater operation.
Heating Thermistor 42001-0053S: Constructed of pressure- and shock-resistant stainless steel. Operates from -20°C to 80°C, accurately measures water temperature, and provides feedback to the control system – ensuring precise and stable temperature regulation.
High Limit Switch 42001-0063S: Made from corrosion-resistant brass, this switch monitors the heat exchanger outlet temperature. Disconnects when temperatures exceed the 57°C safety threshold – keeping your heater operating within safe limits.
Easy Installation: Designed for tool-free replacement; no specialized skills are required. Reduces equipment downtime and simplifies maintenance, allowing you to quickly return your pool or spa heating system to normal operation.