I have three Victron EVCSs with three charging EVs from me and my neighbours, with one Cerbo GX system to manage them.
The chargers have been working well for half a year or so, but recently my charger started acting up strange.
And now, the neighbours charger is giving the same behavior.
The cars are Opel Ampera-E, Hyundai Kona and Tesla Model 3.
At first I put in a adapter in the EVCS, and it gave me troubles afterwards, so I thought it was because of the adapter. Took a lot of effort to get it back to work.
But now that the second charger is acting strange in similar behavior, I’m not sure.
It all has become unreliable in last period, while working flawlessly before.
Main problem is that it says it is charged but the car is not charged. I know from the other topics some of the cars go into a sleep mode requiring manual replugging, so I got it out of the sleep mode but no effect. This is a different problem.
I tried many other things, like going back to firmware 2.0.0 and back up to 2.0.4 (and now 2.0.5)
At some point I got my charger working again by being at firmware 2.0.0., connecting my neighbours Hyundai and do the CP calibration on their car.
Didn’t seem to work at first but after two hours it did something. Then connect the Opel again and after a while it would charge.
And I knew my car didn’t have a problem, because the Opel would charge right away to the second EVCS but look dead when connected to the first one.
Now that the second EVCS is also saying “charged” with the Hyundai, I am not sure what to look at.
I also got it off the GX communication working stand alone, no difference. I also enabled keeping the contacter closed after being charged but no difference.
Yes I got them out of the scheduled mode and set it to manual mode and started manually, still no difference.
It would otherwise also saying “waiting to start”
You can really see it starting, and after 10 seconds conclude that it is charged. Which it is not.
The cars don’t have any schedule settings enabled.
My EVCS with my Opel is working now, but now the second one with the Hyundai has this problem.
And it is not really clear how I fixed it, probably by hanging on another car for a longer periode, so it can figure out CP again?
But this didn’t work for the second charger with the Hyundai Kona.
Regardless of this you still need to make sure that the vehicle hasn’t got it’s own charging schedule that could prevent the EVCS from supplying.
Must be set to “Anytime/any day” in the vehicle.
With the latest firmware it is my understanding that CP calibration is done automatically each time the cable is connected.
The third one (the Tesla) is actually controlled that way, so I know how that works and how that shows as charged.
This isn’t the case for the first two.
Now the Opel charged fine, but now the Hyundai shows Charged on both EVCS while being almost empty.
One runs firmware 2.0.0 with manual CP calibration, and the other 2.0.4 and now 2.0.5 with automatic calibration. No difference.
It was manually replugged, meaning the car has been alive again, sometimes the charge communication goes to sleep again, so I excluded that.
I really have no idea why it is all failing now, while this combination worked fine before. And switching back to other firmware versions doesn’t help.