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International Comfort Products PGMD36H090A Defrost Sensor Board
The defrost control board initiates the defrost sequence which may be needed in order to continue normal heating and cooling operations. The board relies on a temperature sensor located near the condenser to agree when to initiate the defrosting cycle.
Major indications of a defective defrost sensor board
- Unit defrost session refuses to initiate even though there is a large amount of frost built up
- The main board could signify a particular error code produced by a failing defrost board
- AC and heating system could stop running because of frost blocking the fins on the outside unit
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