I was thinking floating neutral. In any case, a call to the
power company might bring some helpers with equipment and
experience.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"Ed Pawlowski" wrote in message
...

Two things you need. First is an accurate meter. The other
is the
recording at various hours.

I had a similar problem and checked voltage. It seems that
at about 6
AM, it would spike 130 to 140, then settle down to 120.
Once call to
the power company solved the problem. They were increasing
power in
the morning for industry coming on line, but our feed was
going too
high.

I'd also check for proper grounding.