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Electric Furnace controls

John Kogel

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This 5 year old Rheem electric furnace (giant toaster) had a normal thermostat that works. That is it works with a fresh pair of AA's from my tool bag, another goofy design.

Besides the low voltage line entering the bottom of the cabinet from the thermostat I think, there is a second low voltage line into the top side that has been purposely disconnected.

What would that be for? It terminates on a circuit board.

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