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International Comfort Products HPFM36K000A Defrost Sensor Board
The defrost sensor control board will determine when to initiate the defrost cycle in order to continue normal heating and cooling operations. It relies on a sensor located near the condenser to decide when to initiate the defrosting cycle.
Major clues your outdoor defrost sensor board has to be replaced
- Your HVAC system will stop working at all because of frost blocking the fins on the outside unit
- Defrost session will not kick in especially when there is frost in the way
- The main control board may show an error of some type produced when the defrost board is bad
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