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Whirlpool ATR0943SPP0 Furnace Door Switch
This switch inhibits the blower and ignition sequence from starting so as to stop a potential explosion. You should really have it replaced promptly if you find it to be faulty.
Key clues of a poorly working safety door switch
- The system will not start even with the door closed
- The switch looks as if it has been bent
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Before buying or ordering, do your due diligence and double check the correct model as well as make a visual inspection so that you are positive that the correct replacement furnace door switch is being ordered. Installation of the furnace door switch is a piece of cake assuming you have the know-how and have the tools to get it done.
Feel free to download your manual for help.
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