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Carrier 50TFQ007 Furnace Door Switch
A furnace door switch is a safety feature that blocks initial fan and burner being triggered to start in order to prevent injury and fire. You should have the switch be replaced ASAP if you suspect that it is not working.
Major symptoms of a bad furnace door switch
- The system does not even thing about starting whether the door is open or closed
- The safety door switch is breaking apart
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