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Lennox CB28UH-018 Limit Switch
Limit switches are crucial due to the fact that if the air inside the furnace is too cool then you will never get hot air through the ducts. The limit switch is a type of sensor switch in the heating area that decides when the heated air is actually warm enough to activate the main blower.
Some warnings poorly running critical limit switch
- Your Lennox system will not begin the ignition sequence or run well longer than 30 seconds
- The Lennox system starts to behave erratically frequently
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If you decide on picking up or purchasing a replacement limit switch for your Lennox CB28UH-018, do your due diligence and make sure of the correct model as well as make a visual inspection in order to be sure the right limit switch is being ordered. Safety is always important when replacing parts in an HVAC environment. If you are not exactly sure of what to do next call a pro. Don't be sorry. Be safe.
Feel free to download your manual for help.
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