I’m new to the site and MEP 804 A ownership. I/ we being my church bought this one as we’re having church in a tent do to No/ COVID 19. Anyway I started it up after servicing it and it runs great but when I checked voltages in 120/208 Mode each leg shows 170 volts From L1,L2, L3 to L-0 and no adjustment changes it one way or another. Anyone have a clue as to where to start . I found a document on testing the voltage regulator and theresults seems to show it’s bad? But they aren’t easy to find it’s a PN# 19870? Any help would be highly appreciated. I was able to locate a part # and get a quote ona kit @$1600.00 . this is a lot of money for a ppssible resolution?