Marc FH

I have recently had dealings with a company named GW Store (Jason Sole), based in Noordhoek, and cannot recommend them enough ! I had an upgrade to my exisitng Sunsynk 5Kw installation. Additional panels were added. I had also asked about an additional battery, but they talked me out of it (more of a nice-to-have than an essential). They also "tidied up" issues left by the original installer. Jason Sole - 071 148 7206

Thanks @AliR, that is EXACTLY what the problem was ! Wish I had your advice much sooner

I think I have found the issue/solution. Have read on other threads about Octopus Agile messing with the first 2 timeslots, which appears to be my issue. Accessed my "revenue" screen and found that currency was 'R', Octopus Agile was checked, Region was set as 'C-London', and flexible rate was checked. Amended these settings to currency = 'R', Octopus Flux checked and set Basic/Flat Rate to 1 (1R/Kw ?) Saved this then adjusted my timer settings, and 24 hrs later, all settings still in place just as I had entered them Dongle is connected and all seems to be working 100% Thanks for all the suggestions - fingers crossed this is the solution @Nexuss @YellowTapemeasure @PowerUser @system32 @DST @Mark E @JanLuus

New dongle fresh from the packaging installed about 2 hours ago Was fine for about an hour, but now back to square 1 Removing dongle

Located bottom right-hand side of inverter. Should have a red/green indicator lights Held in place by 2 phillips screws Undo screws - pull dongle down to remove

@PowerUser Still operating without a dongle. So the dongle packaged with the inverter did not work. A new sealed dongle also did not work. Waiting on a second hand/used dongle to test. Apologies about the late follow-ups, am just basically at the mercy of the suppliers/installers, but will keep the thread updated as and when things change

Not yet I'm afraid @Mark E Awaiting to test with a second hand dongle (still to be provided) to see if this will fix the issue

Further follow up: New dongle finally arrived and fitted last week (10 June) Within an hour the original issue came up (first 2 rows of settings at 20%, gen charge ticked, and arbitrary overlapping time slots) Dongle was removed, settings reset, and everything back to normal. Inverter has been running fine without the dongle. Supplier has suggested that perhaps there was a bad batch on dongles, so we're awaiting another replacement. @JanLuus : Apologies for late reply. Perhaps try running your system without the dongle for an hour or so ?

Would just like to add my 2c to this thread. My recent interaction with @RVSolar was great. They were the only company, out of around 12 that I contacted, to assist with issues on my new-ish installation (not installed by RV Solar). So a big bonus that they were prepared to take on the risk. Chatted to Ricardo on the Thursday and by Friday lunchtime Heinrich was at my house. Very friendly, very professional, and clearly knew his way around the system. An issue that we had had for over 3 months was fixed and working within an hour. I'm very happy to recommend them (actually did this twice over the weekend)

@PowerUserIt's the dongle!! You called it. We obviously didn't test for long enough. As our installer was AWOL, we manged to get another company to take a look. Heinrich Visagie from @RVSolar came to take a look (thanks @Powerforum Store for the recommendation) and mentioned he had a similar issue on another installation. Unplugged the dongle, waited 20 mins, set new settings and all good. 24 hrs later, settings still in place (I even tested by changing one of the percentages). Everything still is as set. 3 months of stress, pain and headaches sorted in 45mins So no stats or remote access for now. Will need to organize a new dongle in due course. Thanks everyone for all the advice and suggestions. Really appreciated your input @Our Power SA fyi

Follow up : @PowerUser We removed the dongle and tested. Issue remained (even uninstalled the app in case rogue settings were causing the issue) Managed to swap out the inverter with another, and I still have the same problem. First 2 SOC settings revert to 20%, all time slots change, and gen charge is ticked. So I guess it isn't the inverter. Going back through old messages with the installer and I noticed that this issue first came up after the geyser was moved to non-essential, and the CT coil was fitted. Am now completely confused and at a loss, installer likewise

Not worried about the stats for now, more concerned about the warranty Will need to chat with the installer first and get confirmation, just to be on the safe side

Afraid we have yet to try your suggestion @PowerUser. The logger does see my equipment, along with usage and graphs etc. Is it a simple case of just unscrew and unplug, or will I need to shut-down inverter completely to remove ?

Just a follow up. As David Drake of Sunsynk suggested that the battery is possibly at issue, I logged a ticket with @HubbleLithium, along with the issue, unit information and some photos of the inverter battery settings. Not 5 minutes had passed when I received a phone call from Hubble, and spoke to a guy named Jason. We went through the battery settings and updated where necessary, all the while explaining to me the hows and whys. Not 3 minutes later he called again, having spotted another change that I had to make. Apparently battery looks to be in tip-top condition, so NOT related to BMS as D Drake implied. Just wanted to thank @HubbleLithium for the fast and professional service. Really very impressed. Unfortunately, I still have the same inverter issue and trying to get any communication going with either Sunsynk or @SEGEN SOLAR CT is like getting blood from a stone. My messages are being read, but not one reply. Apparently Segen will deal only with my installation technician, but he's getting nothing from them either.

Thank you. Will have him check (assuming I can get hold of him)