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Carrier 25HPA530H0030010 Defrost Sensor Board
The defrost sensor board controls if and when to commence the defrost sequence which helps to rid your unit of frost that can build up. The defrost board relies on a specific sensor located near the condenser to ascertain when to begin.
Signs the AC defrost sensor board is failing
- Self defrost sequence has not run for quite some time despite the fact that there is quite a bit frost that needs to be removed
- Your main control board might issue an error of some type produced by a bad defrost control board
- Most systems will not work due to the amount of frost on the outdoor unit
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