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-24A-045 Furnace Door Switch
This switch stops the blower and other risky devices from activating so as to avoid injuries. You must have the device replaced quickly especially if you suspect it is not working properly.
Indications your safety switch on the furnace door is dead
- The whole system does not fire up even when you close the door
- The door switch seems not there
This site contains affiliate links for which I may be compensated
Feel free to download your manual for help.
This site contains affiliate links for which I may be compensated