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International Comfort Products NTN3100KFA1 Defrost Sensor Board
The defrost sensor control board initiates the defrosting phase if necessary, to defrost your outdoor unit. The defrost board is relayed information from a specific sensor located near the condenser to ascertain when to begin.
Clues the defrost sensor board is going out
- Defrost session does not begin especially when there is a rather large amount of frost on the external unit
- Your system could stop functioning for the simple fact of the frost blocking the flow of air
- The main circuit board may show an error of some type referring to a bad defrost board
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