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Carrier 48GS018040300 Furnace Door Switch
The furnace door switch blocks initial fan and burner from turning on so as to avoid injuries. It is vital that this part be traded for new one immediately if you can, if it is not working in order to prevent injuries.
Signs your safety switch on the furnace door is in need of replacing
- The system does not begin to work whether the door is off or on
- The door mechanism looks like it is damaged
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