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International Comfort Products PGME42G0905 Defrost Sensor Board
The defrost sensor board determines when or if to start the defrosting phase which actually helps to continue normal heating and cooling operations. The control board is influenced by a temperature sensor that can be found near the condenser, in order to ascertain when to initiate the defrosting cycle.
Signals of a deteriorating AC defrost sensor board
- Unit defrost session never initiates even when there is a large quantity of frost in the way
- The control board could signify an alphanumeric error code when the defrost control board refuses to initialize properly
- The HVAC system could end up not running due in part to the frost blocking the flow of air
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