When my GivEnergy battery started playing up it became basically useless and several companies I called said they couldn’t help. Solar Tech Support really knew their stuff, communicated very well and resolved the problem quickly. Without them I’d have had to buy a replacement battery.
Sofar common problems & faults
- Free remote diagnostic
- No fix, no fee
- All major brands supported
This company are a rare gem, I had a very unusual problem following a failed firmware upgrade on my GivEnergy kit. I then found out GivEnergy were in administration and had dismissed all their support staff! None of the usual fixes to try and restore my inverter comms would work, and I looked everywhere, forums, GivEnergy youtube support videos - even AI couldn't figure it out. My installer was talking about huge sums for system replacements, and being vague / evasive about if they'd even install replacement GivEnergy inverter. Enter Solar Tech Support, reassuring and knowledgeable from the very start, I've learnt loads about my solar system though the friendly chat while my engineer worked as he diagnosed the problem and figured out a fix procedure that I've not found anywhere else - amazing. If you need solar system repairs - especially if you like me have been left high and dry by GivEnergy, I cannot recommend this company enough. Give them a call.
Massively massively recommended. We had a big battery array (49kW across three phases) put in four years ago. c £35k cost. It’s been a total nightmare for many reasons, not least 1. our installer being totally useless and unresponsive and 2. Givenergy, our battery supplier, going bust. Long story short it had never worked anywhere near properly despite countless hours on phones and emails; the best we’d achieved was one third of the batteries working. Rather than write it off, I asked a PM friend to try to source someone who could come on site and review and revive the system. He found Solar Tech Support and Ron. Ron assured us he was the man to get it going again. After so many years of pain, I was not convinced but, true to his word, five hours later it was up and running. Lovely chap, super knowledgeable with a support team to lean on who are also clearly super technical. I honestly didn’t think there was much chance of getting this array going ever again so was absolutely delighted when Ron and team pulled it off. Bravo!
I work for a Solar Company and had a customer with a GivEnergy system that we are not versed in. Ron took the time to explain the issues my customer was having and between us managed to rectify the issues. 10 Stars ... Thanks again STS
Our 3 year old GivEnergy batteries froze. They were showing 0% on the app, but they were fully charged. Some how Ron took over our inverter and remotely cured the problem. We live in King’s Lynn, he is in Leeds I believe. Very grateful.
Solar Tech Support is an absolute lifesaver. My solar and battery system stopped working completely, but after one quick phone call, they fixed the problem straight away. The original provider, GivEnergy, has gone into administration, leaving me entirely without support from the original installers. It was a terrible situation on GivEnergy’s part, but thankfully, Solar Tech Support came to the rescue!
What actually goes wrong with Sofar kit
Two faults account for most of the Sofar calls we get, and both are covered in detail below. The first is grid disconnection. The inverter drops off the grid with a G-OV, G-UV, G-OF or G-UF code in the SolarMan event log. In the UK the usual culprit is local grid voltage climbing past 253V at midday when local solar systems all export at once. The inverter is doing its job, not failing. A G-ISO code is the odd one out: that points to a DC insulation fault and needs on-site testing.
The second is specific to the ME3000SP, the AC-coupled battery unit installed between 2016 and 2021. It stores energy fine, then provides nothing in a power cut. Usually that's a missing neutral-earth bond on the EPS circuit, EPS mode never enabled at commissioning, or no changeover relay fitted at all.
Both start the same way: a free remote diagnostic. We read your SolarMan logs and settings, tell you what's actually wrong, and whether anything on-site is needed. No fix, no fee.
2 common problems & faults we cover
Each topic links through to an engineer-led step-by-step guide.
Grid Disconnection Fault — G98/G99 Voltage &
Your Sofar inverter keeps dropping off the grid with a fault alarm. It's not failing — it's protecting the network. Free remote diagnostic —…
ME3000SP EPS Mode Fault — Neutral-Earth Bond &
Your ME3000SP has battery storage but doesn't provide backup power when the grid goes down. Free remote diagnostic — no fix, no fee. Same-day.
Sofar fault questions answered
Need a Sofar engineer?
Tell us what's happening with your Sofar system. Free remote diagnostic, no-fix-no-fee. Most configuration faults resolved during the 30-minute session.
- No fix, no fee — pay only if we resolve your fault
- Same-day response within within 4 hours during business hours
- Written report regardless of outcome
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Got a solar fault or need a quick answer? Drop us a message — we usually reply within a few minutes. Mon–Fri, 9am–7pm.