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Carrier 48GS030040300 Furnace Door Switch
A furnace door switch is a switch that stops the draft inducer and ignitor from switching on so as to stop a potential explosion. It is quite important to have it switched out as soon as you can if you see that it is broken.
Important red flags of a poorly working furnace door switch
- The switch seems worn
- The furnace will not operate whether the door is open or closed
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Before you decide on buying or purchasing do your best and double check the model number and also make a visual inspection in order to be sure the right furnace door switch is the one being purchased. There is no need to install the part by yourself. Hire someone with experience in your community to replace the part.
Feel free to download your manual for help.
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