How do i know what wire is in my thermostat?
Common wire may not be used by your thermostat. The power from the transformer is red. Red, Rc, 24VAC is dedicated to heat call. Green, G, Fan, is dedicated to cooling call. White is a heat color. An air conditioner is yellow or Y.
Let's Get It Fixed!
HomeX virtual experts will assess your issue (for free!) and can resolve simple problems.
