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International Comfort Products T8MPV100J20C1 Defrost Sensor Board
The defrost sensor control board controls if and when to commence the defrosting phase which may be needed in order to get rid of the frost that collects on the outdoor unit. The defrost sensor board relies on a temperature sensor located near the condenser to ascertain when to begin.
Clues your outdoor defrost sensor board has very little life left
- AC and heating system could stop working due in part to frost blocking the fins on the outside unit
- Self defrost sequence never kicks in especially when there is a rather large amount of frost on the unit
- The main circuit board may throw an error of some type referring to a failing defrost control board
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