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International Comfort Products GPSM36H080F Defrost Sensor Board
The defrost sensor control board commences the defrost cycle which may be necessary to get rid of the frost that collects on the outdoor unit. The board depends on a defrost sensor which is near the condenser somewhere, in order to decide when to begin.
Major indications your outdoor defrost sensor board is failing
- Unit defrost session does not run even though there is quite a bit frost on the external unit
- AC and heating system could stop running due in part to the frost blocking the flow of air
- Your main control board could signify an error number produced by a failing defrost board
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