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Carrier 58STA09010020 Defrost Sensor Board
The defrost sensor control board will determine when to initiate the defrost sequence which may be needed in order to defrost your outdoor unit. The defrost sensor board is relayed information from a specific sensor which is near the condenser somewhere, in order to make the decision on when to begin.
What warnings should I watch out for to know if my defrost board is almost going bad?
- The HVAC system could stop operating because of the frost issue
- The main circuit board might give out an error of some type if the defrost board fails
- Unit defrost session has not run for a while despite that there is a large amount frost on the outdoor unit
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