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Lennox G40UH-24A-070 Furnace Door Switch
The furnace door switch stops the blower and burner being triggered to start so as to stop a potential explosion. Do not try to fix it, just have it switched out promptly especially if you think it is defective.
Some warnings your safety switch on the furnace door needs a replacement ASAP
- The HVAC system does not run even with the door closed
- The switch is beat up
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Before buying or purchasing a new Lennox G40UH-24A-070 replacement part do your best and cross-check the correct model and also make a visual comparison so that you are positive that the proper replacement furnace door switch is being ordered. You do not need to install the replacement part alone. Locate a pro in your community to do the job for you.
Feel free to download your manual for help.
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