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Heat Controller VMH24SC-1 Defrost Sensor Board
The defrost control board controls if and when to commence an important defrosting cycle in order to remove frost build-up that may accumulate. The board is influenced by a temperature sensor located in the outdoor unit to agree when to begin.
Major clues your Heat Controller defrost sensor board needs a replacement ASAP
- The primary control board could signify a specific error code referring to the failed defrost sequence
- Self defrost sequence never initiates especially when there is a rather large amount of frost on the unit
- Air conditioning may stop operating due in part to the frost blocking the flow of air
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