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International Comfort Products PGMD42H115A Defrost Sensor Board
The defrost sensor control board instructs the outdoor unit to begin the defrost cycle which may be needed in order to keep the outdoor unit free from frost build-up. The defrost sensor board depends on a defrost sensor which is near the condenser somewhere, in order to determine when to initiate the defrosting cycle.
Key signs of an ailing AC defrost sensor board
- The system will stop working due in part to frost blocking the fins on the outside unit
- Your main control board may show an error number referring to a failing defrost control board
- Defrosting will not kick in especially when there is frost on the unit
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