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Carrier 38QRR018 Limit Switch
Limit switches are built due to the fact that if the air never warms up inside the exchanger then you will never get hot air through the ducts. A normal limit switch contains a sensor in the air handler that makes the determination when the heated air is warm enough for the main blower to kick in and circulate the air.
Simple indications of a dying limit switch
- The heating and cooling system refuses to kick in or will not stay running like it is supposed to
- Your system begins to run inconsistently from time to time
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If you are going to be buying or ordering a replacement limit switch for your Carrier 38QRR018 do your best and cross-check the model number as well as make a visual inspection in order to be sure the correct limit switch is the one being purchased. HVAC professionals may have higher labor rates than others so you may want to keep a lookout locally to acquire the best rate if money is of great importance to you.
Feel free to download your manual for help.
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