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Carrier 38YZA048 Furnace Door Switch
The furnace door switch is a safety switch which blocks the draft inducer and other risky devices being triggered to start so as to avoid injuries. Do not waste time and have it swapped out as soon as you can if you see that it is broken.
Simple warnings that your furnace door switch has to be replaced?
- The door mechanism seems not there
- The system does not begin to work whether the door is off or on
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