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Lennox CB30M-31 Limit Switch
This is important because if the air is too cool inside the furnace to begin with, the you will lose heat in the ducts and the vents will just blow cool air. The limit switch is a switch in the heat exchanger that senses, or governs, when the air is warm enough for the blower to be activated.
Major indications of a defective limit type switch
- The HVAC system is starting to shut down unexpectedly time after time
- Your Lennox system refuses to kick in or will not stay running for any length of time
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Before you decide on buying or purchasing a new Lennox CB30M-31 replacement part, do your due diligence and cross-check the correct model and also make a visual comparison in order to be sure the correct limit switch is the one being purchased. Replacing the limit switch is a breeze if you possess the knowledge and have the proper tools to do it right.
Feel free to download your manual for help.
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