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Samsung UQB24J2WC Furnace Door Switch
The furnace door switch blocks initial fan and ignition sequence from starting in order to prevent injury and fire. It is imperative that the switch be traded for new one as soon as you can if you suspect that it is not working.
Important signs the switch on your furnace door is dying
- The system does not function with the door closed
- The door switch appears as though it has been not there
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