Do you not have an energy saver option on the control panel? Look at your board the J12 has a single wire to it I think it's black. It is located to the right of J7 on the left side of the board. If the wire is there, then that's your mullion heater wire. Let me know if the wire is there, if not I'll look further into it.
Last edited by abadfish66 : 06-25-2008 at 02:01 PM.