Hey Dirk,
I have the same issue but I have a partial solution. If you make all of your desired settings, but leave the times as 00:00, you'll be able to set it up. Problem is, no matter what I do, there is absolutely no way to set any time in the weekly mode. I've tried enabling or disabling it in the Working mode page, I've set the working mode page to all zero's, I've set the same settings as the working mode page, I've set it from 00:00 to 23:59 so it's "enabled" and can be fine tuned on the Weekly set page, I've tried adding just a single change such as changing 00:00 to 00:05 etc. Nothing has worked and I'm 98% certain that this is a flaw in the software. Honestly, the design of the EG4 inverter configuration feels like you're working on an archaic system that has all these disparate settings that are the same settings in different locations that function different and even control different options depending where you find it but sometimes they also talk to each other and have to be set in an extremely specific way with ZERO documentation on the feature at all. The firmware is really, really poorly designed and needs a complete rewrite, along with maybe a manual on how to configure it..
Anyways, it's unfortunate that no one has replied to you from EG4 in the past 11 months, but I'm currently looking for solutions and came across your post. Figured I'd share what I was able to accomplish (which is very little).
Come on EG4...you can do better, both from a firmware perspective, but also from a customer support perspective on your own forums...
