Car charger tripping RCBO while charging

What vehicle is on the charger when this happens?

Also, I think that's a type B RCBO and not a type A as per the installer's guidelines (pages 5 & 7 of the electric vehicle charging regulations), and I think that's also stated on the national regs too:

I'm not sure that the RCD trip type is the cause here anyway, but it's one to check with the installer first.

Aside from that for the moment, the normal cause of an RCD fault (as opposed to an RCBO) is water ingress, so you should visually check the cables as well as check for dampness on or around the Ohme unit. It could well be that moisture has entered the unit and it's tripping when it's evaporating and condensing back onto the internal PCB.

The other cause of an RCBO fault is from a electrical overload, but I don't think we have indications of that here anyway.

Hi, there would be an earth running down the SWA and the Ohme's have PEN protection built-in, so no ground rod is installed for the charger alone, if that answers the question.

Can find the posts on mobile but there are known issues with batch of Garo RCBO tripping when under continuous load from EV charger.