Report "My old t-stat had the following wires. White = W, Yellow = Y, Green = G, Blue = C, Red = Rc, and one more short wire that was cut on both ends and a little bit thicker which was Red = RH. I wired my new CT87N matching G, W, Y on on the right hand side. On the left side I put the Red wire in Rc. I left the brass colored, two pronged jumper in there along with the Red wire in Rc. I did not connect Blue. I did not use the thicker red wire, open on both ends labeled RH. The fan comes on but no AC"