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International Comfort Products T9MPV125L20A1 Defrost Sensor Board
The defrost sensor board controls when to launch the defrost sequence which assists to keep your outdoor unit from plugging up. The defrost sensor board looks to a sensor which is near the condenser somewhere, in order to decide when the defrost cycle should begin.
Red flags the AC defrost sensor board is in dire straights
- Defrost session never kicks in even though there is a large amount of frost in the way
- The whole system may end up not running due in part to the amount of frost on the outdoor unit
- The primary control board could throw a type of error code produced when the defrost board is bad
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