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Mitsubishi MSZ-GE12NA Defrost Sensor Board
The defrost control board commences the defrosting phase which helps to keep your outdoor unit from plugging up. It is influenced by a sensor which is near the condenser somewhere, in order to determine when the defrost cycle should begin.
Cues of a poorly performing outdoor defrost sensor board
- Defrost session never kicks in even though there is a lot of frost in the way
- Air conditioning may cease to function because of way too much frost build-up
- The control board might issue an alphanumeric error code produced by a failing defrost board
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