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The YORK S1-031-01975-001 is a heat pump defrost control circuit board. This component plays a key role in the functionality of a heat pump system. It manages the defrost cycle by actively monitoring sensors and controlling components to eliminate ice buildup. This ensures the heat pump operates efficiently.
Essential for maintaining optimal performance of heat pump systems.
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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