Poor After Sales Service

I see number of positive reviews about the installation of their PV systems. I concur with that. The installation was neat and professional. But then I also concur with the reviews about aftersales service. My system has never worked properly but I eventually just got tired of incompetent technicians who attempted to fix one problem but in so doing just created another. In one instance there was an explosion in my DB when one of them was working on the system. Then another technician came and whilst looking at the DB said ""this not how we normally wire the system". That is weird, YOU installed the system!!! He left it at that - seemed like to much effort to fix it. I have now given up on them and taken it upon myself do deal directly with Goodwe (the inverter manufacturer). After extensive troubleshooting with Goodwe they discovered that it is the wiring of the system that is the problem and someone needs to come and check it. They asked if I have someone, but if not they would recommend someone!! You can guess what I said!!! Now I am waiting for their recommendation. Perhaps after 3 years my system will eventually work correctly. So, if after sales service is important to you then I would NOT recommend these guys!