i'm replacing 1- tube- 3 ballast.. the last one the wiring was different-end had 1 blue and 1 white wire. i put together blu&blue and blue and white. the new ballast had 2 blue coming out on that side. turn on ciruit beaker then as i switch on the switch- a quick light flash from main ballast ( the odd One). nothing now.
does all three ballast work individual, can't get any one to light up..