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Carrier 38HDC018 Defrost Sensor Board
The defrost control board controls when to launch the defrost sequence which may be needed in order to keep your outdoor unit from plugging up. The defrost sensor board is relayed information from a defrost sensor which is near the condenser somewhere, in order to decide when to begin.
What are some indications that my defrost board is in need of replacing?
- Most systems will end up not running because of too much frost
- Unit defrost session refuses to initiate even when there is a large quantity of frost on the outdoor unit
- The main board might give out an error number produced by too much frost
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