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Carrier 48GS042060300 Furnace Door Switch
A furnace door switch is a switch that prevents the draft inducer and gas ignition from activating in order to prevent injury and fire. You should have the switch be switched out at once especially if you suspect it is not working properly.
Key signs of a dying safety switch on the furnace door
- The furnace door switch looks fallen off
- The furnace cannot run even with the door closed
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