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Lennox CB28UH-036 Limit Switch
The limit switch contains a sensor in the air handler that makes the determination when the heated air is warm enough to activate the main blower. Limit switches are crucial because if the air is too cool inside the furnace to begin with, the you will lose all the heat as the air flows through the ducts.
Important signs limit type switch is in need of replacing
- The HVAC system refuses to start nor will it stay running like it ought to
- The whole system is starting to runs spotty often
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Before buying or purchasing, do your due diligence and cross-check the model number as well as make a visual inspection so that you are positive that the right limit switch is being ordered. You do not need to replace the part all by yourself. Find a professional locally to pay to install it for you.
Feel free to download your manual for help.
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