Quickly accessed unit, and determined that the electrical circuit still has not been repaired properly. Advised the homeowner and showed him with my multimeter that the line voltage issue is still present. Advised homeowner to contact his electrician again since the panel was just upgraded. Once we have a working 220 volt circuit, we can then diagnose any further issues with the ac system. I did not charge for this visit since I was only here for about 10-15 minutes. N/C, per PA.