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Lennox 42W43 Furnace Door Switch
A furnace door switch is a switch that stops the blower and burner from activating so as to avoid injuries. Do not waste time and have it exchanged for a new one as quick as you can if you see that it is broken.
Warnings your furnace door switch is not going to last much longer
- The furnace door switch looks like it is worn down
- The furnace cannot run even with the door closed
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If you are going to be buying or purchasing any Lennox 42W43 replacement part, do your due diligence and double check the model number and also make a visual inspection in order to be sure the right furnace door switch is being ordered. Some pros may charge higher prices than others so it may be beneficial to look around your area to find a good deal if you do not want to pay too much.
Feel free to download your manual for help.
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