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Lennox 13ACX-024 Furnace Door Switch
The job of the furnace door switch inhibits the vent fan and gas ignition from switching on in order to prevent injury and fire. Do not waste time and have it switched out ASAP if you find it to be faulty.
Symptoms the safety door switch is going to die
- The door mechanism is breaking off
- The system will not even begin to start whether the door is off or on
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