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Nordyne M3RL-060A-AW Furnace Door Switch
This switch stops the fan and ignition sequence from activating in order to prevent injury and fire. It is quite important to have it traded for new one ASAP if you suspect that it is not working.
Some clues poorly running safety furnace door switch
- The door mechanism looks like it is bent
- The whole system does not even thing about starting even with the door closed
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