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Frigidaire FRS093LW12 Defrost Sensor Board
The defrost control board instructs the outdoor unit to begin the defrost cycle which actually helps to defrost your outdoor unit. The defrost sensor board looks to a sensor located in the outdoor unit to make the decision on when the defrost cycle should begin.
What warnings should I watch out for to know if my AC defrost sensor board is failing?
- Your main control board could throw an error of some type if the defrost board fails
- Your HVAC system will end up not running due in part to the frost blocking the flow of air
- Defrost mode has not run for a while even though there is quite a bit frost that needs to be removed
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