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Bryant 330JAV Limit Switch
Limit switches are built because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts. The limit switch contains a sensor in the heat exchanger that decides when the heated air is warm enough for the main blower to kick in and circulate the air.
Red flags of an unhealthy limit type switch
- The heating and cooling system will not begin or run well like it is supposed to
- The Bryant system starts to stop suddenly occasionally
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