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Carrier 39L Furnace Door Switch
A furnace door switch is a switch that inhibits the vent fan and ignition sequence being triggered to start so as to stop a potential explosion. It is extremely important that the device is replaced as quick as you can if it is defective in some way or another.
Major clues your safety switch on the furnace door is failing
- The furnace will not engage even when you close the door
- The door mechanism seems bent badly
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Before you decide on buying or purchasing, do your due diligence and cross-check the correct model as well as make a visual inspection so that you are positive that the correct furnace door switch is the one being purchased. You do not have to install it yourself. Hire someone with experience in your community to hire and install the part for you.
Feel free to download your manual for help.
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