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International Comfort Products NTC7075BFA2 Furnace Door Switch
A furnace door switch is a safety feature that prevents the draft inducer and gas ignition from turning on in order to prevent injury and fire. You should have the switch be exchanged for a new one immediately if you can, especially if you suspect it is not working properly.
Easy warnings of an ineffective safety switch on the furnace door
- The switch seems damaged
- The whole system does not run whether the door is off or on
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