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Lennox HP40-048 Furnace Door Switch
A furnace door switch is a switch that prevents the vent fan and other risky devices being triggered to start in order to prevent injury and fire. It is crucial to have this part replaced swiftly if you see that it is broken.
Red flags your furnace door switch will not last the year
- The door mechanism looks like it is breaking apart
- The furnace does not turn on whether the door is off or on
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If you are going to be buying or purchasing any Lennox HP40-048 replacement part do your best and double check the correct model as well as make a visual comparison so that you are positive that the correct replacement furnace door switch is the one being purchased. Once you have the part to install the replacement part alone. Hire someone with experience in your community to do it for you.
Feel free to download your manual for help.
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