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Trane TCP060F300AB Furnace Door Switch
A furnace door switch is a safety feature that inhibits the fan and gas ignition from starting so as to stop a potential explosion. It is vital that this part be replaced promptly if you find it to be faulty.
Red flags of a weak safety furnace door switch
- The switch looks as if it has been wrong
- The HVAC system will not engage even with the door closed
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