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International Comfort Products N9MPD040F08A2 Defrost Sensor Board
The defrost sensor control board will determine when to initiate the defrosting phase which may be necessary to rid your unit of frost that can build up. The defrost sensor board depends on a temperature sensor that can be found near the condenser, in order to decide when the defrost cycle should begin.
Easy warnings of a dying defrost sensor board
- Your system could cease to function due in part to the frost blocking the flow of air
- The defrost sequence does not begin despite that there is a large amount frost on the external unit
- The primary control board could signify an error code when the defrost control board refuses to initialize properly
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