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I am installing a 7500 wat grid tie system . I am using used panels . I got everything installed and i am getting positive on the ground wire when grounded to earth ground . I took total voltage and counted back panels to find the bad panel . I then ran a jumper to that panel to be sure it was...

I found my sunnyboy dead today . It had one wire lose on the 220 v ac side . I fixed it and fired it back up and it is dead no led or anything . It is like it is stuck in a sleep mode . Is there a away to get it going or is it toast ? all ac and dc volts are ok . thank you

I have a new sunyboy grid tie that can hook to the grid and feed the grid . It only connects at low voltage . if i disconnect at 4000 watt it wont reconnect and displays error 3501. I isolate the two strings one at a time and still the same error . That leads me to think the issue is something...

I have some panels on the roof . I get a ground fault on the panel side . I am going to go up and check every panel to see what is going on . I got one on the ground . I get good watts and amps . When I cross one power cord with the frame it makes the multimeter move about 10% of the wats . My...