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Goodman GCH90905DX Furnace Door Switch
A furnace door switch is a switch that inhibits initial fan and gas ignition from activating so as to stop a potential explosion. It is vital that this part be replaced immediately if you can, if it is defective in some way or another.
Red flags of an unhealthy safety door switch
- The HVAC system does not operate whether the door is off or on
- The door mechanism seems to be worn
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If you are going to be buying or purchasing do your best and make sure of the correct model and also make a visual comparison so that you are positive that the correct furnace door switch is the one being purchased. There is no rule that says you have to replace the part all by yourself. Hire someone with experience in your town or city to do it for you.
Feel free to download your manual for help.
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