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International Comfort Products NAC218AKA1 Defrost Sensor Board
The defrost control board will begin an important defrosting cycle in order to remove frost build-up that may accumulate. It depends on a defrost sensor located near the condenser to ascertain when to initiate the defrosting cycle.
Major symptoms of an ineffective outdoor defrost sensor board
- The AC may not run for the fact of the frost blocking the flow of air
- Your main control board may signify an error signal referring to a failing defrost control board
- Self defrost sequence never runs especially when there is frost that needs to be removed
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