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Nordyne MS3BC030KA Defrost Sensor Board
The defrost control board will determine when to initiate the defrost cycle which actually helps to keep your outdoor unit from plugging up. It relies on a temperature sensor located near the condenser to make the decision on when the defrost cycle should begin.
General warnings of an ailing Nordyne defrost sensor board
- Air conditioning may cease to operate due in part to the frost issue
- The defrost feature never begins even though there is quite a bit frost on the outdoor unit
- The main board could throw an error of some type if the defrost control board fails
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