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Carrier 38BK Defrost Sensor Board
The defrost control board is jobbed with determining when to begin the defrost cycle if necessary, to keep your outdoor unit from plugging up. The board is relayed information from a defrost sensor located somewhere by the condenser to agree when to begin.
Do you know if your outdoor defrost sensor board has to be replaced?
- Defrost session refuses to run despite the fact that there is a lot of frost on the external unit
- The HVAC system could stop working for the simple fact of way too much frost build-up
- The HVAC system control board may show an error signal produced when the defrost board is bad
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