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International Comfort Products GPSM60L100F Furnace Door Switch
A furnace door switch is a safety feature that stops the draft inducer and ignition sequence from turning on in order to prevent injury and fire. You should have the switch be exchanged for a new one ASAP if it is not working in order to prevent injuries.
Key signs of an ineffective switch on the furnace door
- The furnace does not even thing about starting whether the door is open or closed
- The door switch looks like it is broken badly
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