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Trane TCP042F300AB Limit Switch
A normal limit switch contains a sensor in the air handler that can determine when the heated air is warm enough for the main blower to kick in and circulate the air. Limit switches are crucial because if the warmed air is too cool then you will never get hot air through the ducts.
What are some indications that my main limit switch really needs to be replaced?
- The HVAC system will not begin the ignition sequence nor will it stay running like it ought to
- The system starts to become inconsistent time after time
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