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International Comfort Products GPSM48H120F Defrost Sensor Board
The defrost control board will determine when to initiate the defrosting phase if necessary, to remove frost build-up that may accumulate. The board depends on a defrost sensor located near the condenser to ascertain when to initiate the defrosting cycle.
Important signs your defrost board is in need of replacing
- Unit defrost session refuses to run especially when there is frost on the outdoor unit
- The control board might give out a specific error code produced by a failing defrost board
- The HVAC system could not run because of frost blocking the fins on the outside unit
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