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Carrier 58STA04510008 Furnace Door Switch
This switch inhibits the draft inducer and ignition sequence from turning on in order to prevent injury and fire. You should have the switch be swapped out as quick as you can if you find it to be faulty.
Clues the switch on your furnace door is going out
- The HVAC system will not engage even with the door closed
- The furnace door switch looks like it is stuck
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