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International Comfort Products NHP030GKA1 Defrost Sensor Board
The defrost control board is jobbed with determining when to begin the defrost cycle which helps to keep the outdoor unit free from frost build-up. The defrost board depends on a sensor located in the outdoor unit to verify when to begin.
Indications of an ailing AC defrost sensor board
- Your HVAC system will end up not running for the fact of frost blocking the fins on the outside unit
- The primary control board might issue a particular error code produced when the defrost control board fails to receive a signal
- Defrosting has not run for a while especially when there is a rather large amount of frost that needs to be removed
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