[RE-wrenches] Over voltage error message

[Drake]

Hello Wrenches,

My client reported seeing an overvoltage error message on her Mate 3 
on a Radian system. The Radian is selling to the grid and is being 
fed by a Midnite Classic 200. It has shown two spikes so far, the 
last one going to 67 volts and lasting 1 second. The batteries are 
Concorde AGM, 305 AH.

Does this momentary spike seem like a problem or a warning of problems to come?

Thanks,

Drake