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International Comfort Products NTVM075GFA1 Defrost Sensor Board
The defrost control board initiates the defrost sequence which may be necessary to continue normal heating and cooling operations. The board relies on a defrost sensor that can be found near the condenser, in order to agree when to initiate the defrosting cycle.
Indications to watch for in a failing outdoor defrost sensor board
- The control board may throw an error number produced by a bad defrost control board
- Self defrost sequence never runs even when there is a large quantity of frost on the outdoor unit
- The system will cease to function for the simple fact of the safety features installed
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