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Lennox G43UF Limit Switch
Limit switches exist because if the air is not warm enough then you will never get hot air through the ducts. A normal limit switch is a switch in the heat exchanger that senses, or governs, when the air is warmed to a point that it can be circulated throughout the house.
How can I tell if my limit switch most likely is on its last leg?
- Your system is beginning to behave differently on more than one occasion
- Your Lennox system will not start or run well like it should
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If you are going to be buying or ordering any Lennox G43UF part, do your due diligence and cross-check the model number and also make a visual comparison so that you are positive that the proper replacement limit switch is the one being purchased. You do not need to install it yourself. Pay a professional in your community to do it for you.
Feel free to download your manual for help.
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