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International Comfort Products NDN5100BHA1 Defrost Sensor Board
The defrost sensor board will determine when to initiate the defrost cycle which actually helps to continue normal heating and cooling operations. The defrost board looks to a temperature sensor located somewhere by the condenser to determine when to begin.
Some warnings to watch for in a bad defrost sensor board
- Defrost session refuses to initiate especially when there is frost on the unit
- The main circuit board could display an error signal when encountering a problem
- Air conditioning may cease to operate for the fact of the safety issue that the frost poses
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