FoxESS Community - Owners & Installers Forum

An update: I checked the CT clamps and restarted both inverters. CT clamps were correct, and both inverters work as expected when reacting to load on each separate phase - when the batteries attached to each are under Max SoC (100%).

The issue seems to be when the batteries reach 100% and each H1 ...

[*]I've recently become involved with my local village hall. About 2 years ago they took advantage of a grant and had a hybrid system installed but haven't had much of a clue about how to operate it so, as I've got experience with my Fox system at home, I've volunteered to help. However, the way the ...

Thanks Dave. DIP switch is correct for the stack (5 modules = 3). Fox responded to my further request to harmonise the battery firmwares with “This has to be updated from the site as the remote update is not going through”. So I’m not sure what to do now, other than try the installer who installed ...

I have a H1-5.0-E-G2 and 5x ECS2900 V1 battery cubes.

It has happily been running reliably on the following versions for many months:
Manager : 1.44
Master : 1.27
Slave : 1.02

But I want to take advantage of the new meter compensation feature, so asked Fox support to upgrade the firmware. To their ...

News just in on N-E bonding - the G2 inverters sold in the UK as of April 2024 now have an internal N-E bonding relay for EPS mode included. According to my installer (who was in contact with Fox UK on this issue) the first batch of G2s sent out didn't, but newer ones do. So if this is important to ...

Like you I have a local earth rod but only run the EPS circuits via a manual changeover switch.

I have a relay on the EPS output that automatically bonds the EPS N to Earth but only when the EPS circuit becomes active (grid lost)


Thanks Dave, so do you have the inverter Bypass Relay disabled ...

I have this same issue. Fox H1 inverter, Whole house EPS, manual changeover switch, TN-C-S system with local earth rod, but floating neutral of ~44V when in EPS mode. So there’s no N-E bonding being done in the inverter.

The question is what to do about it. Making a simple bond between EPS N and ...

I’ve recently had Level 3 EPS installed with my H1 inverter and am very pleased with it. Power cuts where I live are unfortunately pretty regular especially in bad weather.

One thing I hadn’t expected was the EPS behaviour when the grid returns. There was a cut this evening, so I threw the ...