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Carrier 42S Furnace Door Switch
This switch inhibits the vent fan and ignition sequence from activating so as to avoid injuries. It is imperative that the switch be switched out quickly if it is defective.
What are the clues to watch out for to know my furnace door switch is in need of replacing?
- The furnace door switch has been wrong
- The HVAC system will not engage whether the door is open or closed
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Before buying or purchasing, do your due diligence and make sure of the correct model as well as make a visual inspection in order to be sure the proper replacement furnace door switch is the one being purchased. There is no rule that says you have to install the part by yourself. Locate a pro locally to do the job for you.
Feel free to download your manual for help.
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