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View Full Version : Can't hookup digital thermostat. Only has 2 wires!


Pinhead186
Dec 26, 2007, 10:52 AM
I have a gas furnace and upstairs I removed the old thermostat and it only has a yellow and green wire which the two wire digram it gives me with the digital only uses R1 and w/b . Please help I have no heat.

hvac1000
Dec 26, 2007, 12:17 PM
You can pull a extra wire. Lots of work. Or get a battery operated thermostat.
I can try to look up your thermostat to confirm.
What is the new thermostat name and model number?