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Samsung MH080FXCA4A Defrost Sensor Board
The defrost control board determines when or if to start the defrost sequence if necessary, to keep the outdoor unit free from frost build-up. It is relayed information from a defrost sensor located somewhere by the condenser to decide when to begin.
Signals of a declining defrost sensor board
- Defrosting never kicks in even though there is a large amount of frost on the outdoor unit
- The primary control board may show a particular error code produced by a failing defrost board
- The system will stop running due in part to the safety issue that the frost poses
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