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International Comfort Products NHP242GKA1 Defrost Sensor Board
The defrost control board instructs the outdoor unit to begin the defrost sequence in order to continue normal heating and cooling operations. The defrost board is influenced by a temperature sensor located in the outdoor unit to verify when the defrost cycle should begin.
How can I tell if my outdoor defrost sensor board is almost going bad?
- Defrost session never starts especially when there is frost on the external unit
- Air conditioning may cease to operate because of too much frost
- The main circuit board may show an error of some type if the defrost control board fails
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