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Source 1 S1-02547281000 is a defrost thermistor temperature sensor used for defrost cycles and temperature monitoring in refrigeration, HVAC, and heat pump systems. The sensor functions as an OEM replacement part and is compatible with York equipment and TH4B controls. It is supplied as a single replacement sensor for residential and commercial defrost applications.
Defrost thermistor for HVAC and refrigeration defrost control; OEM MPN S1-02547281000; sold individually.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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