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Lennox OF24-120 Furnace Door Switch
The furnace door switch prevents the fan and burner from activating in order to prevent injury and fire. You should really have it replaced swiftly if it is causing you problems.
What signals that my safety switch on the furnace door is about to stop working?
- The furnace cannot run with the door closed
- The door mechanism is breaking off
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Before buying or purchasing a replacement furnace door switch for your Lennox OF24-120 do your best and cross-check the correct model as well as make a visual inspection so that you are positive that the proper replacement furnace door switch is the one being purchased. There is no rule that says you have to install it yourself. Hire a pro in your area to replace the part.
Feel free to download your manual for help.
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