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NewAir AC-14100E Furnace Door Switch
The furnace door switch is a safety switch which inhibits the fan and gas ignition from switching on so as to stop a potential explosion. It is quite important to have it changed ASAP especially if you think it is defective.
How do you know if your safety door switch is on its last leg?
- The system will not engage even when you close the door
- The door switch looks like it is breaking apart
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