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International Comfort Products HHP448AKA1 Defrost Sensor Board
The defrost sensor board is jobbed with determining when to begin the defrost cycle which helps to defrost your outdoor unit. The board relies on a temperature sensor that can be found near the condenser, in order to determine when to initiate the defrosting cycle.
Symptoms to watch for in a bad outdoor defrost sensor board
- Your system could cease to function at all because of the fact that there is too much frost
- The defrost feature never initiates even though there is a lot of frost on the outdoor unit
- The control board could signify an error of some type when a defrost board fails to initialize
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