Spindle wrote:
Yes 120v is present. The problem is that the 12v doesn’t go to the relay by way of the yellow wire when the electric switch is on by itself. For the electric to work the gas switch has to be on. It will run gas/electric and gas alone not electric alone.
Your wall switch is miswired. Disconnect the white wire. Cut it a few inches from the control board. Supply 12 volts to the wire coming out of the control board. You should have 12 volts on the yellow wire. It may be as simple as the 2- 12 volt switched wires from the wall switch are reversed. Doug
