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International Comfort Products NDN3100KFA1 Defrost Sensor Board
The defrost control board will begin the defrost sequence which helps to continue normal heating and cooling operations. The defrost board depends on a specific sensor which is near the condenser somewhere, in order to make the decision on when to begin.
Red flags the defrost sensor board is not going to last much longer
- The main circuit board may throw an error code when the defrost control board refuses to initialize properly
- Unit defrost session never begins even though there is excessive frost that makes the unit run like crap
- AC and heating system could cease to function due to the fact of way too much frost build-up
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