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International Comfort Products T9MPD075F12A1 Defrost Sensor Board
The defrost sensor control board commences the defrost sequence which may be necessary to get rid of the frost that collects on the outdoor unit. The defrost board looks to a defrost sensor located somewhere by the condenser to determine when to begin.
Easy warnings of a weak AC defrost sensor board
- Defrost mode will not initiate despite that there is a large amount frost that makes the unit run like crap
- The main circuit board may issue a specific error code produced by too much frost
- Your HVAC system will not operate for the fact of the frost blocking the flow of air
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