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International Comfort Products PGMD18G0405 Defrost Sensor Board
The defrost sensor board initiates the defrost cycle which may be needed in order to keep your outdoor unit from plugging up. It is relayed information from a defrost sensor which is near the condenser somewhere, in order to decide when the defrost cycle should begin.
Hints your defrost board will die soon
- Your HVAC system will not operate due in part to the fact that there is too much frost
- The defrost sequence never initiates especially when there is frost in the way
- The main board might give out a specific error code referring to a bad defrost board
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