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Lennox 13ACD-030 Furnace Door Switch
A furnace door switch is a switch that inhibits the fan and burner from switching on so as to avoid injuries. It is extremely important that the device is swapped out ASAP if you find it to be faulty.
What are some hints that my safety furnace door switch is crapping out?
- The door mechanism appears to be wrong
- The HVAC system does not function with the door closed
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