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Nordyne B4VM Defrost Sensor Board
The defrost sensor control board determines when to initiate the defrosting phase which actually helps to remove frost build-up that may accumulate. The defrost board is influenced by a temperature sensor which is near the condenser somewhere, in order to ascertain when the defrost cycle should begin.
What symptoms are present when the Nordyne defrost sensor board is failing?
- Unit defrost session will not kick in especially when there is frost on the outdoor unit
- AC and heating system could end up not running due to the safety features installed
- The main control board may signify an error code produced when the defrost board is bad
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