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Carrier 48GS042090300 Furnace Door Switch
A furnace door switch is a safety feature that stops initial fan and ignitor from starting so as to stop a potential explosion. It is vital that this part be replaced swiftly if it is defective in some way or another.
Signals of a poorly performing safety door switch
- The furnace will not engage even when you close the door
- The furnace door switch seems broken badly
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Before buying or purchasing any Carrier 48GS042090300 replacement part do your best and double check the correct model as well as make a visual comparison in order to be sure the correct furnace door switch is the one being purchased. Installation of the furnace door switch is a piece of cake provided you have the know-how and have the proper tools to get it done.
Feel free to download your manual for help.
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