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International Comfort Products GPFM48S120F Defrost Sensor Board
The defrost control board determines when to initiate the defrost sequence which actually helps to defrost your outdoor unit. The board looks to a defrost sensor located somewhere by the condenser to decide when the defrost cycle should begin.
Major warnings the AC defrost sensor board will need replacing
- The defrost sequence has not run for quite some time even though there is quite a bit frost on the external unit
- The main board may throw a type of error code if the defrost control board fails
- The AC may stop working due to the safety features installed
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