When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network
Lennox G40UH Furnace Door Switch
A furnace door switch is a safety feature that blocks the draft inducer and ignitor from starting in order to prevent injury and fire. It is extremely important that the device is replaced immediately if you can, especially if you think it is defective.
What to see if the switch on the furnace door is dying?
- The door switch looks as if it has been not there
- The furnace will not fire up whether the door is open or closed
This site contains affiliate links for which I may be compensated
Before buying or purchasing any Lennox G40UH part do your best and make sure of the model number as well as make a visual comparison so that you are positive that the right furnace door switch is being ordered. You do not have to install the replacement part alone. Consult with a professional in your area to pay to install it for you.
Feel free to download your manual for help.
This site contains affiliate links for which I may be compensated
