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International Comfort Products PGAD42E1K5 Defrost Sensor Board
The defrost sensor control board determines when or if to start the defrost cycle if necessary, to get rid of the frost that collects on the outdoor unit. The defrost board looks to a sensor located somewhere by the condenser to decide when the defrost cycle should begin.
Important hints your defrost board is failing
- The control board could display a particular error code if the defrost board goes out
- The HVAC system could stop working for the simple fact of the safety features installed
- The defrost sequence never starts even though there is a lot of frost on the external unit
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