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Payne PH3ZNA036000AA Defrost Sensor Board
The defrost control board determines when or if to start an important defrosting cycle if necessary, to keep the outdoor unit free from frost build-up. The board relies on a temperature sensor located near the condenser to make the decision on when to begin.
Key symptoms of an unhealthy defrost board
- Your main control board may throw a particular error code when the defrost control board refuses to initialize properly
- Defrosting has not run for a while even when there is a large quantity of frost on the external unit
- The whole system may cease to function due to the fact of frost blocking the fins on the outside unit
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Before you decide on buying or purchasing any Payne PH3ZNA036000AA replacement part do your best and cross-check the correct model and also make a visual inspection in order to be sure the correct replacement defrost sensor board is the one being purchased. Make safety your number one priority when installing or replacing an HVAC part. If you are not exactly sure of what to do next call a pro. Don't be sorry. Be safe.
Feel free to download your manual for help.
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