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Carrier 24ABR348G0031010 Furnace Door Switch
This switch stops initial fan and other risky devices from activating so as to avoid injuries. It is quite important to have it swapped out at once if you suspect that it is not working.
Some warnings of a laboring safety switch on the furnace door
- The switch looks as if it has been worn
- The whole system does not turn on even when you close the door
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