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International Comfort Products PGAA36D1K6 Defrost Sensor Board
The defrost sensor board instructs the outdoor unit to begin the defrosting phase which may be needed in order to continue normal heating and cooling operations. The defrost sensor board relies on a specific sensor located in the outdoor unit to make the decision on when to begin.
Major indications of a faulty AC defrost sensor board
- Defrost mode does not begin despite that there is a large amount frost in the way
- The control board may signify a particular error code when a defrost board fails to initialize
- The HVAC system could stop functioning due in part to the frost issue
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