[lmp]

Hello, I am trying to upgrade my thermostate from a Payne to a honeywell but having trouble determining how to properly connect the wires.

The payne has

W - white wire
O - no wire
G- green wire
R - Red wire
C- Blue wire
Y- Yellow wire


I need to match the wires to the following honeywell config

Rh
Rc
W
Y
G

I'm looking for how to properly connect.

Thanks!

[labman]

Connect the red to both the RH and RC, then Y, W, and G as before. The blue is the other side of the transformer, the common. Some programmable thermostats don't need it. No B or C terminal, leave it unconnected. Read the instructions for the Honeywell and follow them carefully. If you do a search here, you will find many people have trouble with it. Maybe Northern Heat will do a better job solving them than I ever did.