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Lennox SPA048H4 Furnace Door Switch
This switch stops the blower and ignition sequence from activating so as to avoid injuries. It is crucial to have this part replaced swiftly if it is defective in some way or another.
Some clues of an ailing safety switch on the furnace door
- The HVAC system will not operate whether the door is off or on
- The door mechanism looks as if it has been removed
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If you are going to be buying or purchasing a new Lennox SPA048H4 replacement part, do your due diligence and double check the model number and also make a visual inspection in order to be sure the correct replacement furnace door switch is the one being purchased. Once you have the part to install it yourself. Hire a pro in your community to pay to install it for you.
Feel free to download your manual for help.
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