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International Comfort Products PGAD Defrost Sensor Board
The defrost sensor board determines when to initiate the defrost sequence if necessary, to get rid of the frost that collects on the outdoor unit. It looks to a specific sensor that can be found near the condenser, in order to agree when to initiate the defrosting cycle.
General warnings of a dying defrost sensor board
- The primary control board could throw an error number produced when the defrost board is bad
- The system will not work at all because of the safety issue that the frost poses
- Unit defrost session refuses to initiate especially when there is frost that makes the unit run like crap
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