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Trane TCP060F100AB Furnace Door Switch
A furnace door switch is a switch that blocks the vent fan and other risky devices from starting so as to stop a potential explosion. It is quite important to have it traded for new one as soon as you can if you find it to be faulty.
Major clues of a weakening safety door switch
- The door switch appears as though it has been worn down
- The furnace does not operate even when you close the door
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