I have a 15 kw system with two 8048 inverters...and all necessary equipment such as controllers etc. set up as grid tied battery backup...two pair of 60 amp breakers on the main panel and two pair of 60 amp breakers in the inverter output combiner panel...everything works until I engage those 60 amp breakers...I get an error message in the mate that there is a gs2 short...it’s okay if I only turn on three of the four sets of breakers but when that fourth one closes the system reacts with that message...I have checked the wires a dozen times and everything is properly connected from The load centers...any Suggestions? Advice?

Please help.

I didn't find the right solution from the Internet.

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