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International Comfort Products NDN5075BFC1 Defrost Sensor Board
The defrost sensor board determines when to initiate the defrost sequence in order to remove frost build-up that may accumulate. The defrost board is relayed information from a defrost sensor located somewhere by the condenser to make the decision on when to begin.
General indicators that your the AC defrost sensor board is in need of replacing
- Defrost mode has not run for a while despite that there is a large amount frost on the outdoor unit
- The HVAC system control board may issue an error code if the defrost control board fails
- Your system could cease to function due to the fact of way too much frost build-up
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