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Lennox XC14-018 Limit Switch
This is important because if the air is too cool inside the furnace to begin with, then the house will never get warm enough. The limit switch has a sensor in the air handler that determines if and when the air is warmed to a point for the main blower to kick in and circulate the air.
Warnings of a laboring limit switch
- The HVAC system is beginning to run inconsistently occasionally
- Your Lennox system will not even start or will not stay running for any significant length if time
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Before buying or ordering do your best and cross-check the model number and also make a visual comparison in order to be sure the proper replacement limit switch is the one being purchased. Once you have the part to install it yourself. Consult with a professional locally to replace the part.
Feel free to download your manual for help.
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