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Carrier 58MVP120F15120 Defrost Sensor Board
The defrost sensor control board will determine when to initiate the defrost sequence which may be needed in order to keep the outdoor unit free from frost build-up. The control board relies on a defrost sensor located somewhere by the condenser to agree when to initiate the defrosting cycle.
General warnings of an ineffective Carrier defrost sensor board
- Air conditioning may not run for the simple fact of the frost blocking the flow of air
- The defrost sequence has not run for a while even though there is excessive frost that makes the unit run like crap
- The HVAC system control board could display a particular error code referring to a failing defrost control board
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