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International Comfort Products HAC218GKA1 Defrost Sensor Board
The defrost control board controls when to launch an important defrosting cycle which may be needed in order to get rid of the frost that collects on the outdoor unit. The control board is relayed information from a defrost sensor located somewhere by the condenser to make the decision on when the defrost cycle should begin.
Key indicators that my defrost board has to be replaced?
- Defrost mode never begins especially when there is frost that makes the unit run like crap
- The main circuit board may show an error signal referring to a failing defrost control board
- The system may not run at all because of the safety features installed
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