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Carrier FF1DNA030011AAAA Furnace Door Switch
This switch inhibits the draft inducer and ignition sequence being triggered to start so as to avoid injuries. You must have the device substituted for a new part at once if you suspect that it is not working.
Easy warnings of a barely functioning furnace door switch
- The door mechanism looks not there
- The furnace will not engage whether the door is open or closed
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Before buying or purchasing, do your due diligence and double check the model number as well as make a visual comparison in order to be sure the right furnace door switch is being ordered. There is no need to replace the part all by yourself. Locate a pro in your community to do it for you.
Feel free to download your manual for help.
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