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International Comfort Products GPFM48K120F Furnace Door Switch
The job of the furnace door switch prevents the blower and burner from activating so as to stop a potential explosion. You should have the switch be substituted for a new part as quick as you can if it is defective in some way or another.
What symptoms are present when the switch on the furnace door is not working properly?
- The whole system cannot run whether the door is open or closed
- The furnace door switch looks as if it has been not there
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