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Carrier 25HPA430A0030010 Defrost Sensor Board
The defrost sensor control board initiates the defrost cycle which may be necessary to get rid of the frost that collects on the outdoor unit. The defrost board looks to a specific sensor located near the condenser to determine when to begin.
Important clues of a declining defrost sensor board
- The HVAC system could cease to operate due in part to the amount of frost on the outdoor unit
- The control board could throw an alphanumeric error code when the defrost control board refuses to initialize properly
- The defrost sequence has not run for quite some time despite the fact that there is quite a bit frost that makes the unit run like crap
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