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Carrier 48XZ048115300 Furnace Door Switch
A furnace door switch is a switch that blocks the blower and ignition sequence from switching on so as to stop a potential explosion. It is important to get the part switched out promptly especially if you think it is defective.
Some clues your furnace door switch is dead
- The switch appears to be broken completely
- The furnace does not fire up even when you close the door
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