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International Comfort Products GPFM36L100F Defrost Sensor Board
The defrost sensor control board controls when to launch the defrost cycle which assists to remove frost build-up that may accumulate. The defrost sensor board looks to a defrost sensor which is near the condenser somewhere, in order to make the decision on when the defrost cycle should begin.
Subtle cues of a barely functioning International Comfort Products defrost sensor board
- The whole system may not work due in part to frost blocking the fins on the outside unit
- The main board may throw a particular error code if the defrost board goes out
- The defrost feature never runs even though there is quite a bit frost on the outdoor unit
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