I am having trouble with one 110 VAC power to the house. The line
keeps vering between 115 VAC to under 90 VAC. The house is wired from
the power Co. with two hots (110 VAC) and a netural. I am having
trouble with one phase (110 VAC) and the other phase (110 VAC) does
not fluxuate. What could it be? I have had an electrican and he is
stumped, and the power Co. is no help.

Ron