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International Comfort Products PGAA36D1K1 Defrost Sensor Board
The defrost control board initiates the defrost sequence in order to rid your unit of frost that can build up. The control board relies on a specific sensor located in the outdoor unit to decide when to initiate the defrosting cycle.
Key clues of a weak defrost board
- The control board may signify a type of error code when the defrost board fails
- Defrost mode never starts especially when there is a rather large amount of frost on the unit
- The whole system may stop running due to way too much frost build-up
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