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International Comfort Products HAC448AKA1 Defrost Sensor Board
The defrost sensor board commences the defrost cycle which assists to keep your outdoor unit from plugging up. The control board looks to a specific sensor which is near the condenser somewhere, in order to determine when to begin.
Some clues your defrost board is not going to last much longer
- Air conditioning may not operate due to the fact of the fact that there is too much frost
- The defrost feature never runs especially when there is a rather large amount of frost that makes the unit run like crap
- Your main control board may throw an error of some type when the defrost board fails
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