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Lennox G40UH-36C-110 Limit Switch
The main reason limit switches are made is because if the air never warms up the you will lose heat in the ducts and the vents will just blow cool air. The limit switch contains a sensor in the heating area that makes the determination when the heated air is actually warm enough that it can be circulated throughout the house.
Important signs limit type switch is dead
- System will not begin or will not stay running for any significant length if time
- The system is beginning to run erratically occasionally
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If you are going to be buying or ordering any Lennox G40UH-36C-110 part, do your due diligence and cross-check the model number and also make a visual inspection in order to be sure the correct limit switch is the one being purchased. There is no need to install the replacement part alone. Pay a professional locally to hire and install the part for you.
Feel free to download your manual for help.
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