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International Comfort Products APFM60K000A Defrost Sensor Board
The defrost sensor control board instructs the system to activate the defrosting phase which may be needed in order to get rid of the frost that collects on the outdoor unit. The defrost board is relayed information from a sensor which is near the condenser somewhere, in order to make the decision on when to begin.
What are the clues to watch out for to know my outdoor defrost sensor board is crapping out?
- The main circuit board may signify an error code produced by a bad defrost control board
- The AC may stop functioning at all because of lack of airflow through the outdoor unit
- The defrost sequence refuses to run despite the fact that there is a lot of frost on the external unit
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