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That was great advice.

After reading your post I followed the wire to my furnace again. What had me additionally confused at first is that my furnace has a computer board where the wires to/from...

Hi there.

I want to replace my current White-Rogers 1E56W309 thermostat with a new Honeywell RTH7500D. The problem is that the tools that installed my high efficiency furnace didn't install the...