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International Comfort Products PGAD30D1K4 Defrost Sensor Board
The defrost control board controls if and when to commence the defrost cycle which assists to continue normal heating and cooling operations. It depends on a specific sensor which is near the condenser somewhere, in order to make the decision on when the defrost cycle should begin.
Signs your outdoor defrost sensor board should need replacing
- The main board may issue an error of some type produced when the defrost board is bad
- The defrost sequence has not run for a while despite the fact that there is quite a bit frost that needs to be removed
- Most systems will not work for the fact of frost blocking the fins on the outside unit
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