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International Comfort Products PGC042K100F Defrost Sensor Board
The defrost sensor board controls when to launch the defrosting phase if necessary, to rid your unit of frost that can build up. The control board relies on a sensor located in the outdoor unit to agree when the defrost cycle should begin.
Some warnings of a failing AC defrost sensor board
- Your HVAC system will end up not running for the simple fact of the frost issue
- Self defrost sequence never initiates even though there is a large amount of frost that has built up
- The control board may throw an error signal when a defrost board fails to initialize
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