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Lennox G43UF-36C-090H Furnace Door Switch
The furnace door switch blocks the fan and ignitor being triggered to start in order to prevent injury and fire. You should really have it replaced ASAP if it is not working in order to prevent injuries.
Major symptoms the safety door switch will not last the year
- The furnace door switch has been wrong
- The furnace will not even begin to start with the door closed
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If you decide on picking up or ordering a new Lennox G43UF-36C-090H replacement part, do your due diligence and cross-check the correct model as well as make a visual inspection in order to be sure the proper replacement furnace door switch is being ordered. It can be quite simple to replace a furnace door switch on your Lennox G43UF-36C-090H as long as you are handy and have the time and tools to get it done.
Feel free to download your manual for help.
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