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Carrier 50GL Defrost Sensor Board
The defrost sensor control board controls if and when to commence the defrost sequence which aids to keep your outdoor unit from plugging up. The defrost sensor board depends on a defrost sensor located near the condenser to make the decision on when to begin.
Warnings your Carrier defrost sensor board is in dire need of a replacement
- Your HVAC system will stop operating due to the amount of frost on the outdoor unit
- Your main control board may issue an error code produced by a failing defrost board
- Self defrost sequence never begins even when there is a large quantity of frost on the unit
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