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Payne PY1PJB048115 Limit Switch
The limit switch contains a sensor located in the furnace that can determine if and when the air is actually warm enough for the main blower to kick in and circulate the air. Limit switches are built due to the fact that if the air inside the furnace is too cool then you will never get hot air through the ducts.
Key indicators that my critical limit switch is almost dead?
- Your system is starting to stop suddenly repeatedly
- The HVAC system refuses to kick in or continue to run longer than 30 seconds
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