EV charger installation caused code 1 and code 26 faults

[NicoLondon]

Hi there!

In my attempts to go all electric I had an Ohme Pod installed today through Octopus.

I hadn’t realised until after the engineer left that my whole system is now offline.
H1 6kW inverter, 2x 5kW batteries, 6kW panels.

I have the error messages:
Code-1: no utility
Code-26: grid voltage fault

Called engineer, told me to switch off all PV breakers, wait a couple minutes then back on: did nothing.

Then told me to reboot so I turned all isolators to off, turned off batteries.
I think that’s what create a code-234 BMS alarm.
Switched everything back to on, still nothing and now the batteries refuse to turn on!

Any help?

Thanks,
Nico

[NicoLondon]

Update: the Octopus engineer who installed the EV charger came back and helped with the panels and battery. After a few resets it’s all back up and running as it should, as far as I can tell.
The dongle however has lost connection and isn’t sending data to the FoxESS cloud, despite several resets.
Suggestions?

PS props to the Octopus engineer who spent a solid 2 hours getting the system back up.