Amending inverter export limit
I've a Fox G8 8.0kW 3 MPPT Solar Inverter as part of a two year old solar install. The G99 back in 2024 granted export of 5.5 kW.

I've applied for this to be increased in line with the maximum our panels can produce- 6.7 kW. If the DNO comes back as says "Yes, no problem", I can't make the change on the inverter as I don't have the PIN code. The original installer is incommunicado.

Can Fox Support make this change remotely, assuming I give them a copy of the authorisation from the DNO?
Re: Amending inverter export limit
I guess they changed the 0 0 0 0 code?

If so, then yes Fox can change it remotely... you can also ask if you can if your account can be upgraded if your Installer has gone bust. Not sure about being ghosted, but plead your case!
Re: Amending inverter export limit
Ah that is great to know! I am pretty sure 0000 isn't valid- I will check tomorrow. Thanks for the rapid response 8-)
Re: Amending inverter export limit
Sorry, kind of used the default 0000 PIN, so try this code from manual ;)

The default password is "3210". Please let qualified installer or distributor to do the settings, end users are not
recommended to do the settings.
Re: Amending inverter export limit
Ooh interesting! Guess what I'll be checking when the sun comes up tomorrow ;)
Re: Amending inverter export limit
Be rude not to :lol:

I did ask to see if my 3.9kW can be lifted, got a big fat nope! I make sure the battery has room to mop up the overspill, so I shall be carrying on with that for now.
Re: Amending inverter export limit
You were right! 3210...so I just need the DNO to grant me an increased export limit and off we go.
Re: Amending inverter export limit
Perfect :D
Re: Amending inverter export limit
So the DNO says I can export more! But what is the menu setting in the inverter that needs changing? I looked at a few and none of them seemed to show the existing 5500 that I was expecting
Re: Amending inverter export limit
Nickd wrote: Wed Apr 15, 2026 2:15 pm So the DNO says I can export more! But what is the menu setting in the inverter that needs changing? I looked at a few and none of them seemed to show the existing 5500 that I was expecting
Have you had a look at this? Hopefully it's the correct one for your inverter.

https://www.fox-ess.com/Public/Uploads/ ... V1.0.0.pdf

Paul
8.94kW Array. 18 x Aiko Neostar 3S 495W panels. 14 S, 4 W facing. Fox ESS Evo 10, 10kWh storage with 10kW inverter. Fox ESS EPS 1PH Backup. Installation planned for 27th April 2026. Will be running ModBus via Elfin EW11a through Home Assistant.
Re: Amending inverter export limit
Got it...Settings....CT Mode...leave that to CT then a long press after that gets you to an XXXXX W screen which was 05500 W and now....maybe isn't.
Re: Amending inverter export limit
It was the correct manual, thank you!
Post Reply