Isn't the white wire from the old Univolt for the power-on light? I know that when mine was changed out for a stat-power, the power-on light didn't work any more. Still doesn't work with the Intelipower, but I don't need it anyway. Roger Hightower WBCCI 4165, VAC, TCT 1975 31' Sovereign Mesa, AZ mailto:n7kt@att.net