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Carrier 24ABR342G0030010 Limit Switch
Limit switches are crucial because if the air never warms up the you will lose all the heat as the air flows through the ducts. The limit switch is a type of sensor switch in the air handler that decides if and when the air is actually warm enough so that it may be pushed through the ducts and out the vents.
Major signs limit type switch is failing
- The HVAC system begins to act weird repeatedly
- System will not begin the ignition sequence or will not stay running even though the desired temperature has not been attained
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