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International Comfort Products H2A336GKA100 Defrost Sensor Board
The defrost control board controls when to launch the defrost sequence if necessary, to get rid of the frost that collects on the outdoor unit. The defrost board is relayed information from a sensor located in the outdoor unit to make the decision on when to begin.
Red flags of a defective outdoor defrost sensor board
- The primary control board could display an alphanumeric error code when encountering a problem
- Air conditioning may stop working at all because of frost blocking the fins on the outside unit
- Defrost mode never begins especially when there is a rather large amount of frost that makes the unit run like crap
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