I've spoken to Ron a couple of times with issues with my Givenergy installation. Such a friendly knowledge guy very highly recommended. Thank you very much for resolving my issues
Tesla Powerwall common problems & faults
- Free remote diagnostic
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I wholeheartedly recommend. Many thanks to Ron. Amazing. Everything is fixed. And I feel safer now that I know where to come for support if anything else happens. I contacted STS for help via their extremely useful website which told me exactly what I had done wrong to require support. My GivEnergy battery had been dead for a while and an attempted firmware update had stopped the inverter. The support was prompt and very professional and over and above what I expected. I was helped every step of the way with clear instructions and e-mail support for questions. The issue was resolved within 24 hours and a technical report produces from log data to share with Octopus to try to get to the bottom of how the original issue occurred. Despite Ron saying that mine was a familiar issue with Octopus Intelligent Flux, this to me was service over and above expectations.
An amazing experience and service from Ronald - totally 100% recommend. All remotely sorted with no need to wait around for someone to pop in and sort. I was a little nervous about doing this but was really easy and he talks you through the steps. Just such relief and we are back up and running again.
Ron was very knowledgeable and patient as we worked through the cause of Givenergy Hybrid Inverter suddenly failing (with 0W grid). He was able to quickly identify the probable cause, and point me in the right direction to identify the ‘burnt out’ AC isolator switch & piece of cable, which I was able to find a local electrician to replace. The best £95 I have spent. Thanks Ron.
The Solar Tech Support company was the only one to respond to a request for someone to supply and fit a new inverter for our solar panels after our old one finally expired after 26 years. Ron kept us well informed throughout, came and ascertained that the issue was down to the inverter having failed then sourced and fitted a new one. He got the system up and running again, set up the wi-fi performance feedback and took away the old inverter for disposal. By acting promptly and fitting the job around existing commitments we were able to get our solar power unit back in operation with minimal delay in the short while before we were due to go away for a week. The work was carried out very professionally and we were asked to confirm that all was in order the following day. I was impressed that, having recently taken on additional work for GivEnergy customers we were able to keep our solar panel down-time to a minimum. I would highly recommend for prompt attention and first-rate service.
Brilliant. He fitted a new dongle and set the system up properly. Even better, he explained why the storage batteries don't work in a power cut - not correctly wired up - expensive to fix, but a simple turn of the master switch will give emergency power. He is the third technician to look at this issue and the only one to resolve it. Friendly and appoachable, comes when he says he will and reasonable charges. What's not to like!
What actually goes wrong with Tesla Powerwall systems
Most Powerwall faults we see are settings and metering problems, not a dead battery. The single most common is a CT clamp fitted backwards: the Gateway misreads solar or house load, so the battery won't charge from solar or sits full and exports when it should be running the house. Wrong operating mode and tariff windows that don't match your Octopus times cause most of the rest.
The Gateway is behind the other two themes. If it drops offline after a router change (Gateway 2 is 2.4GHz only, and port 1883 needs to be open) you lose app monitoring: the Powerwall usually keeps running, but the app can't show you a fault until the Gateway reconnects. In a power cut, circuits wired outside the Gateway or a contactor that fails to switch can leave a fully charged Powerwall doing nothing, and a backup reserve set too low leaves little in the tank when the grid drops.
Each guide below works through the checks in order, starting with what you can see in the Tesla app. If you get stuck on anything but the WiFi, the remote diagnostic is free, and we're independent of Tesla and your installer. WiFi isn't remote work: if the Gateway won't reconnect after our Gateway offline guide, we can set it up on site, from £195.
4 common problems & faults we cover
Each topic links through to an engineer-led step-by-step guide.
Backup not working during power cut
Your Powerwall is fully charged but when the grid drops, there is no power — or power cuts out after a few minutes.
See backup not working during power cutNot charging from solar panels
Your solar panels are generating but the Powerwall stays at the same percentage — or the Tesla app shows 0kW from solar when the inverter is…
See not charging from solar panelsTesla Gateway or app offline — diagnose & fix
Your Powerwall still works without internet, but you have lost app monitoring and remote control. Free step-by-step guide.
See Tesla Gateway or app offlineTesla self-consumption issue — mode & tariff fix
Your Powerwall should charge from excess solar and power your home at night. If it's exporting when it shouldn't or skipping cheap-rate…
See Tesla self-consumption issueTesla Powerwall fault questions answered
Need a Tesla Powerwall engineer?
Tell us what's happening with your Tesla Powerwall system. Free remote diagnostic, no-fix-no-fee. Most configuration faults resolved during the 30-minute session. We don't set up or diagnose WiFi remotely or over the phone: it's quicker and more reliable done on site.
- No fix, no fee covers remote fixes. On-site work is quoted in writing before we start.
- Emergency response within 4 hours during business hours
- Written report regardless of outcome
We’re busier than ever. Thank you for your patience.
Due to unprecedented demand we’re currently only carrying out on-site work in Yorkshire, and replies are taking up to 7 days. Remote diagnostics continue for the whole UK as normal.
Every message is read and answered, so please don’t send it twice; that only slows the queue.
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Got a solar fault or need a quick answer? Drop us a message and we usually reply within a few minutes. Mon–Fri, 9am–7pm.