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International Comfort Products PHF030K000A Defrost Sensor Board
The defrost sensor board determines when or if to start the defrost cycle if necessary, to remove frost build-up that may accumulate. The control board relies on a temperature sensor that can be found near the condenser, in order to ascertain when to initiate the defrosting cycle.
Red flags of a poorly performing AC defrost sensor board
- Defrost session has not run for quite some time even though there is a lot of frost that needs to be removed
- The main control board might give out an alphanumeric error code produced by a failing defrost board
- Most systems will not operate due to lack of airflow through the outdoor unit
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