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Carrier 50JZ048300 Limit Switch
A normal limit switch has a sensor in the heating area that decides when the air is actually warm enough for the main blower to kick in and circulate the air. Limit switches exist because if the air never warms up the you will lose heat in the ducts and the vents will just blow cool air.
Signals limit type switch is going out
- System will not even start or will not stay running even though the desired temperature has not been attained
- Your system is starting to become inconsistent more often than not
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