So, I have the thermostat installed, it powers on, and during the test, phase 2 of the heating does not come on. Originally there was a 6 wire thermostat with no C wire connected. It was only Y,Y2,W,W2,G and Rc. So I tried the C conversion device, and everything worked, except stage 2. So I ran an 8 conductor, and hooked up the C wire as well. As it stands, this is how the thermostat is hooked up:
The Rc wire runs to a black wire that runs through an overflow shutoff and back to the R terminal on the board.
When it switches to stage 2, the fan still runs, but the heat turns off. Any ideas?