January 10 Power Jack Grid Tie Inverter Not Working Bad Hum On Start Up This Is For Power Jack Tags: grid, inverter, jack, power, start, working Posted January 10, 2017 by admin in category power Post navigation NEW! SMA Sunny Boy SB7000US-12 Grid-Tie Solar Inverter with DC Disconnect & AFCI 1500 Watt Solar Grid Tie Inverter, SunTeams 1500, UL-1741 and CEC