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Old 10-20-2019, 07:59 AM   #25
JRTJH
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Join Date: Mar 2011
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Quote:
Originally Posted by BillMc View Post
Turn it on and flip the breakers 1 by 1 until the furnace shuts off. By law there has to be a breaker on the system for it.
"Breakers" are for 120VAC components and wiring. "Fuses" are for 12 VDC components and wiring. The furnace is a 12 VDC component and there is no "breaker" to shut off. That said, pulling the 12 VDC fuse that does shut off the furnace may also shut off power to other components that might be wired to that fuse. The refrigerator immediately comes to mind.....
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