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Carrier 50TFF004 Furnace Door Switch
A furnace door switch is a safety feature that blocks the draft inducer and other risky devices from starting so as to stop a potential explosion. You should really have it swapped out as quick as you can especially if you suspect it is not working properly.
What are the indications that my safety furnace door switch needs replacing?
- The door switch looks as if it has been worn down
- The furnace will not operate even with the door closed
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