I have an old Wesco Electric Furnace and have taken the old Honeywell Thermostat from the wall, (forgot to mark the wires) and and trying to get a new Honeywell programable thermostat to work. I have four wires, blue, yellow, white and red. Any help?
OK, so there are three wires that go to a terminal block with letters on it, the fourth wire goes to a fan switch, the letters on the terminal block are T, F, Hi, V and C. The wires go to the T, Hi, and V terminals. Can you tell me which wires go to which terminals on the thermostat?