"Ken Weitzel" wrote in message
news:zZoch.411882$R63.269149@pd7urf1no...

Just playing the devil's advocate for a moment...

Difficult to tell where any of us are in the world, so can't
even guess at where you might be, but those just about 1/2 voltages
might not be a coincidence...

It's not possible that you're in the UK and bought a North American
regulator, is it?

Sounds like a split 240 generator. Perhaps the regulator connections got
switched to the 240 leads instead of the 120 leads?