Of the four MPPT’s on the system, the 250/70 is playing up, has been working fine for the last two years, now, sometimes it charges other times remains completely dormant not providing any charge while the other three continue to perform perfectly.
There is 200v DC at the controller from the panels and the battery side confirms connection to them.
However, I can’t get my dealer to help as they “Oscaro Power” have gone into liquidation ! There seems no other way to get
this solved while still in warranty as when I put in the serial number I get directed to the above company
who are no longer available ?
Any help appreciated.