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International Comfort Products PAF024K000A Defrost Sensor Board
The defrost control board controls when to launch the defrosting phase in order to keep the outdoor unit free from frost build-up. The control board is relayed information from a defrost sensor located near the condenser to ascertain when the defrost cycle should begin.
Indications poorly running defrost sensor board
- The HVAC system could stop operating for the simple fact of lack of airflow through the outdoor unit
- The defrost sequence refuses to run especially when there is a rather large amount of frost that has built up
- The main circuit board may show an error number when encountering a problem
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