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Payne PY2PNB030060AA Limit Switch
This is important because if the warmed air is too cool then the house will never get warm enough. A normal limit switch contains a sensor in the heat exchanger that determines if and when the air is actually warm enough that it can be circulated throughout the house.
Clues limit switch is on its last leg
- System will not initiate or run as it should
- The HVAC system is beginning to act weird more often than not
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