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View Full Version : Where do thermostat wires go


noe and sons
Aug 5, 2009, 02:51 PM
Where does thermostat wires hock up in a gas furnace what wires go to fan center and where? What wires go to gas valve?

mygirlsdad77
Aug 5, 2009, 03:18 PM
What year, make and model is your furnace. Thermostat wires usually do not go directly to gas vavle, unless this is a very old furnace. Usually the thermostat wires go to either a control board, or a transformer with spots for thermostat wires. On a normal setup, it would be red to r, white to w, green to g, yellow to y, blue to common. More info on your furnace would help. And maybe even a pic of internal wiring.

wmproop
Aug 5, 2009, 07:34 PM
Is is old if it has a fan center