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SolaX · Common problems & faults

SolaX common problems & faults

STS engineers diagnose and repair 3 common problems & faults on SolaX systems. Click any topic below for a full step-by-step guide, or book a free remote diagnostic and we'll tell you what the fix is.
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Very speedy response. Handled by a real human who took my system through a logical process with the desired outcome within minutes of them accessing my inverter settings. Ron passed me on to Ash, they are both ex-Givenergy people who clearly know their stuff and can give the reassurance of proper technical support now that the Givenergy support desk has closed. A worthwhile investment in ensuring my expensive kit is kept fully functioning.

Paul · Jul 2026 Google

Absolutely wonderful support. I have a GivEnergy system that was installed in 2022, and a firmware update was flagged in the app, so I proceeded to update the software .... and immediately regretted it, as my inverter came up with an error, and was not working at all! With no GivEnergy support available, and my installer saying there was nothing he could do, I googled help, and found Ron. What a stroke of good luck! Submitted an on line enquiry late morning, and received phone call just after 5 pm, and later that evening Ron was able to supply me with old firmware no longer available on the GivEnergy web site. I was then able to update the firmware using a GivEnergy youtube video as reference, and hey presto the system was back up and running. One further slight adjustment by Ron and we are back normal. What a relief. I have no hesitation in recommending Solar Tech Support if you have a problem. Great service! And if you are a GivEnergy system owner, whatever you do, DO NOT UPDATE FIRMWARE!

Neill Ginn · Jul 2026 Google

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!

sohaib maroof · Jul 2026 Google

My solar panels stopped producing unexpectedly, contacted Ron who assisted me initially remotely and then visited to correctly diagnose that the problem was on the roof. Within a month the solar panels are now up and working, kept me up to date with when scaffolding arriving and the lads who checked the solar panels, a very professional team, organisation and service

Mr Andy Smith · Aug 2026 Trustpilot

Solar Tech Support answered my initial enquiry swiftly. They provided remote support to establish what the issue was, and through their experience and network, managed to get my clients system back online. Once the system was online, STS managed to diagnose the main issue to get the ac coupled inverter and battery back online, a battery repair was required. A site visit was organise and within a few days, the system was tested and back up and running. This has saved my client, and probably myself huge costs and inconvenience now the system is back online and working correctly. Would highly recommend.

Dean Wilkinson · Jul 2026 Google

⭐⭐⭐⭐⭐ Absolutely Outstanding Service! My GivEnergy system had completely gone down, and unfortunately I was getting absolutely no support from either the original fitter or the supplier. I was left completely stuck with a system that wasn’t working. I contacted Solar Tech Support and they were absolutely brilliant from start to finish. They quickly got to the bottom of the problem, knew exactly what they were doing, and managed to get my entire system back up and running. Hands down, these guys are absolute experts in their field. The level of knowledge, professionalism and customer service was exceptional, especially when I’d already been left without any support elsewhere. If you have a GivEnergy system and you’re struggling with an issue, don’t hesitate to contact Solar Tech Support. I honestly can’t recommend them highly enough. 5 stars all day long! 🌟🌟🌟🌟🌟

Mr Smith · Aug 2026 Google

Last updated

What actually goes wrong with SolaX systems

Most SolaX faults we see are settings or communications problems, not broken hardware. The X-Hybrid range has a lot of overlapping configuration in SolaX Cloud, and one wrong toggle is enough to stop the battery charging. The classic case is ForceTime not charging on your Octopus window: the schedule is set but Charge from Grid is off, the inverter clock has drifted an hour after the BST changeover, or the work mode is quietly overriding the whole thing.

On the battery side, a T-BAT or Triple Power showing 0% when it is plainly charged is nearly always a BMS communication fault. The usual suspects are a loose CAN cable, a DIP switch set wrong on stacked modules, or the battery type left on T-BAT after a Triple Power upgrade. The battery itself is normally fine.

Grid disconnection trips (E012, PLL Lost) on sunny afternoons are different: the inverter is doing its job, dropping off when local grid voltage tops 253V. That usually needs export limitation checked or a DNO report rather than an inverter repair. Whichever fault you have, the remote diagnostic is free. No fix, no fee.

FAQ

SolaX fault questions answered

Start with the fault history in SolaX Cloud, because the code narrows it down. E012, PLL Lost or IE02 means a grid voltage or frequency problem, usually local overvoltage on sunny afternoons rather than a faulty inverter. BMS_Lost, BMS_Internal_Err or C1 means lost communication with the T-BAT or Triple Power battery: typically a CAN cable, a DIP switch on stacked modules, or the battery-type setting. No fault code but a flat battery in the morning points at ForceTime configuration. Note when it happens and what the weather was doing.
Most of them, yes. ForceTime and overnight charging problems are configuration, sorted through SolaX Cloud in a single session: clock offsets, work mode conflicts, SoC targets and the Charge from Grid toggle. A wrong battery-type setting after a T-BAT to Triple Power upgrade is a remote fix too. For grid trips we read your voltage data and tell you whether it is an export limitation setting or a network problem for your DNO. What needs a visit is physical work: a damaged CAN cable or a failed BMS board.
Nothing to find out what is wrong. The remote diagnostic is free, no fix, no fee: we read your SolaX Cloud fault history and live data and tell you what the problem is. If it is a fix we can do remotely, such as a ForceTime configuration or a battery-type correction, that is £125, and you only pay if it works. If it needs hands-on work, like a failed BMS control board, we quote the on-site visit first.
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