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Friedrich MW18Y3FM Furnace Door Switch
The furnace door switch is a safety switch which prevents the blower and other risky devices being triggered to start so as to stop a potential explosion. You should really have it changed at once especially if you think it is defective.
Major warnings poorly running safety door switch
- The system does not begin to work whether the door is open or closed
- The safety door switch looks like it is bent
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Before you decide on buying or ordering any Friedrich MW18Y3FM part, do your due diligence and make sure of the correct model as well as make a visual comparison so that you are positive that the proper replacement furnace door switch is being ordered. Installation of a new furnace door switch is not difficult assuming you energy and have the tools to do it right.
Feel free to download your manual for help.
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