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Lennox G40UH-36A-070X Air Pressure Switch
The function of the switch is to sense whether the main blower is doing what it is supposed to do. A lot of switches may have a manual reset, which means it will have to be manually reset or the entire system will not run. An air pressure switch is one of the key device to stop injuries or explosions.
Signs that the System Pressure Switch is in Need of Replacement
- Bad voltage range running through the switch.
- The correct temperature indoors is never attained.
- The furnace can't operate at all.
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Before you decide on buying or ordering, do your due diligence and cross-check the model number and also make a visual inspection so that you are positive that the proper replacement air pressure switch is the one being purchased. If you are not sure about the installation of the air pressure switch on your own then it is probably best to find a professional in your area to do the replacement of the part.
Feel free to download your manual for help.
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