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International Comfort Products GPCM48K120F Defrost Sensor Board
The defrost sensor control board will determine when to initiate an important defrosting cycle which may be necessary to get rid of the frost that collects on the outdoor unit. It depends on a temperature sensor located near the condenser to make the decision on when to begin.
Major signs the AC defrost sensor board will need replacing
- AC and heating system could not run due to the fact of the safety issue that the frost poses
- Self defrost sequence does not run despite the fact that there is a lot of frost on the external unit
- The main board might issue a type of error code when the defrost board fails
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