The PV charge controller EASUN 8048 was…
The PV charge controller EASUN 8048 was operated within its key data (PV 3x380W in series / battery 48V/100A) and worked without any problems for about 6 months, then unfortunately it broke down for some unknown reason, the fans switched on and off almost periodically and it spread There was a strong technical smell due to it being de-energized and dismantled. When I contacted EASUN, they responded immediately, after a brief clarification of the situation. As a result, upon request, I unscrewed the controller and took some photos of the inner workings and in particular of the thermally modified components that I discovered EASUN confirmed the defect and sent a new charging controller a day later, which arrived 3 days later. I initiated the communication in English, I don't know whether this was necessary. Everything was very friendly, customer-oriented and very professional, which I am really grateful for. The new controller was not a replacement device but a new device and was put into operation immediately and has been doing its job for a few days now without any problems, so everything was done quickly and it's fine again...it couldn't be better!