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Payne PA13NR03600GAAAA Defrost Sensor Board
The defrost sensor board is jobbed with determining when to begin the defrosting phase which may be necessary to continue normal heating and cooling operations. It looks to a temperature sensor located somewhere by the condenser to ascertain when the defrost cycle should begin.
What are some indications that my Payne defrost sensor board is on its last leg?
- Defrost mode has not run for a while especially when there is a rather large amount of frost on the unit
- Your HVAC system will not work because of lack of airflow through the outdoor unit
- The control board might give out a particular error code produced when the defrost board is bad
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