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International Comfort Products N2A348AKA200 Defrost Sensor Board
The defrost control board controls when to launch the defrost cycle which aids to remove frost build-up that may accumulate. The board relies on a defrost sensor which is near the condenser somewhere, in order to ascertain when to begin.
Cues to watch for in a bad defrost board
- The main circuit board might give out an alphanumeric error code referring to a failing defrost control board
- The defrost sequence has not run for a while despite the fact that there is a lot of frost on the unit
- The HVAC system could cease to operate because of too much frost
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