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Trane TTY060B100A0 Furnace Door Switch
A furnace door switch is a switch that prevents initial fan and burner being triggered to start so as to avoid injuries. It is important to get the part swapped out ASAP if it is defective.
Important clues of a barely functioning safety door switch
- The whole system will not engage whether the door is off or on
- The switch looks as if it has been messed up
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