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Carrier 48XZ030040300TP Furnace Door Switch
The furnace door switch is a safety switch which stops the blower and other risky devices from activating so as to stop a potential explosion. You must have the device swapped out promptly if you suspect that it is not working.
Signs your furnace door switch should need replacing
- The system does not run whether the door is off or on
- The door switch looks bent
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