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Brand support · All supported inverter brands

Independent solar support — by inverter brand

We diagnose and fix GivEnergy, SolarEdge, Growatt, Sunsynk, Solis, Enphase, Huawei, Fronius, Fox ESS, Tesla Powerwall, Sigenergy, Pylontech, Sofar, SolaX, Hanchu, Lux, Dyness, Victron Energy and more. Remote-first, evidence-led, and completely independent from your installer and manufacturer.
  • All major hybrid & string inverters
  • Free remote diagnostic · no fix, no fee
  • Not affiliated with any manufacturer
Not sure which brand you have?

If you can't identify your inverter or battery brand, send us a photo of the unit and its display. We'll identify it and point you to the right support resources.

Book a diagnosticHow to identify your inverter
5.0
13 Trustpilot reviews
Trustpilot Google

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

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

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

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.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

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

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

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.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot

STS Solar Tech Support provides specialist diagnostics and repair services across all major solar and battery storage brands available in the UK. Whether your system is a GivEnergy hybrid inverter with Pylontech batteries, a SolarEdge string system with power optimisers, a Growatt SPH with built-in battery support, or any other combination of hardware, we have the knowledge to diagnose faults and guide repairs. We're completely independent from manufacturers and installers, so our diagnostics are impartial and focused on identifying the real cause of the problem.

Each brand has its own quirks, common failure modes, and configuration best practices. A fault code that means one thing on a GivEnergy system might mean something entirely different on a SolarEdge. The same configuration setting that works on one brand might cause problems on another due to subtle differences in firmware logic or communication protocols. We maintain detailed fault databases for every major brand we support, built from hundreds of real repair jobs over many years. This deep brand knowledge means we can often identify the problem within minutes of reviewing your system data.

Whether your system was installed last month or over a decade ago, we can diagnose and repair it. Even if your inverter is no longer manufactured or your battery brand has been discontinued, we often have the spare parts and technical knowledge to get the system working again. Click on your inverter or battery brand below to access brand-specific troubleshooting guides, common faults, and detailed setup documentation. If you're not sure which brand you have, we have a guide to help you identify your system.

Supported Brands

Choose your inverter or battery brand

Hybrid + Battery

Hybrid inverter & battery systems. All generations — Gen 2, Gen 3, AIO. Portal, BMS and firmware faults.

Go to GivEnergy support →
String + Optimisers

HD-Wave inverters with power optimisers. SetApp configuration, monitoring portal, optimiser faults.

Go to SolarEdge support →
Hybrid + String

SPH/MIN/MOD hybrid and string inverters. ShineServer monitoring, Error 04 insulation faults, ARM/DSP issues.

Go to Growatt support →
Hybrid + Battery

Hybrid inverters with battery support. SolarMan portal, grid code faults, EPS backup.

Go to Sunsynk support →
Hybrid + String

S6/RHI hybrid and string inverters. SolisCloud portal, BMS faults, export limit configuration.

Go to Solis support →
Microinverters

Microinverter systems. Enlighten panel-level monitoring, individual panel status codes, IQ series.

Go to Enphase support →
Hybrid + Battery

SUN2000 hybrid inverters with LUNA2000 battery. FusionSolar app, AFCI faults, rapid shutdown, battery comms.

Go to Huawei support →
String + Hybrid

Symo and Primo string inverters, SnapINverter range. Solar.web monitoring, state codes, grid faults.

Go to Fronius support →
Hybrid + Battery

H1/AC1 hybrid inverters with ECS battery. Fox Cloud portal, BMS faults, grid code and EPS configuration.

Go to Fox ESS support →
Battery Storage

Powerwall 2 and Powerwall 3 battery systems. Tesla app, gateway faults, backup reserve, self-consumption.

Go to Powerwall support →
Hybrid + Battery

SigenStor hybrid inverters and battery modules. SigenCloud portal, CAN faults, EPS, V2G configuration.

Go to Sigenergy support →
Hybrid + Battery

SMILE hybrid inverters with SMILE B battery storage. AlphaCloud portal, BMS faults, EPS configuration.

Go to AlphaESS support →
Hybrid + Battery

Duracell Energy Home hybrid inverter and battery system. App monitoring, BMS faults, backup and EPS configuration.

Go to Duracell Energy support →
Battery Storage

US2000/US3000/US5000 LFP battery systems. PYLON protocol over RS485/CAN, compatible with GivEnergy, Fox ESS, Solis, Sofar and more.

Go to Pylontech support →
Hybrid + AC Battery

HYD hybrid inverters and ME3000SP AC-coupled battery systems. SolarMan monitoring, TOU scheduling, BMS communication faults.

Go to Sofar Solar support →
Hybrid + Battery

X1/X3 Hybrid G4 inverters with T-BAT battery storage. SolaX Cloud monitoring, ForceTime charging configuration, BMS faults.

Go to SolaX support →
Hybrid + Battery

HC series hybrid inverters and Blade LFP battery systems. SolarMan monitoring, BMS communication faults, EPS backup.

Go to Hanchu support →
Hybrid + Battery

LXP hybrid inverters and UHome LFP batteries. LuxPower portal, UHome stack configuration, BMS communication faults.

Go to Lux support →
Battery Storage

B4850 and Tower Pro LFP battery systems. Inverter-agnostic with CAN/RS485 compatibility — faults often trace to inverter configuration.

Go to Dyness support →
Off-Grid & Hybrid

MultiPlus-II, SmartSolar MPPT, Cerbo GX, and VRM. Component-based off-grid and ESS systems — VE.Bus errors, BMS disconnect, MPPT faults, and commissioning support.

Go to Victron support →

Choosing the right brand page

If you know your inverter brand, click through to its dedicated page above. Each brand page includes brand-specific troubleshooting guides, common fault codes, setup documentation, and known firmware issues. This allows you to focus on the faults and settings that are most relevant to your specific hardware, rather than wading through information for brands you don't have.

If you don't know your inverter brand, the easiest way to find it is to check the label on the front, side, or bottom of your inverter — the brand name and model number are usually printed clearly. Alternatively, log into your monitoring app (the app or portal you use to check your solar generation). The app homepage or settings page typically shows the inverter brand and model. If you're still unsure, we have a detailed guide to identifying your inverter brand and model that walks through the most common places to look.

If your fault isn't brand-specific — for example, if you're trying to understand why your system isn't generating, or you want general information about battery charging modes — visit the general problems section instead. The problems pages are brand-agnostic starting points that help you diagnose the fault, after which you can come back to your specific brand page for brand-specific configuration steps or fault code interpretation.

Legacy

Legacy & discontinued brands

We also support a range of older and discontinued inverter brands that are no longer manufactured but are still in use across the UK. If your system uses Aurora (Power-One, later ABB then FIMER), Eversolar, Solar River, Trannergy, or similar legacy hardware, we can still help assess and repair the system. Many of these older inverters are exceptionally reliable and often worth maintaining rather than replacing — even a 10-15 year old system can often be restored to full function with the right diagnosis and repair.

The main challenge with legacy systems is parts availability. Replacement inverters for discontinued brands may no longer be in stock at distributors, which means you may need to source components second-hand or consider a full system replacement. During a diagnostic, we'll assess the fault and advise whether repair is practical and cost-effective. In many cases, we can source spare parts or provide interim solutions to keep an older system working. If your brand isn't listed below, contact us directly — we likely still support it or can advise on your options.

If your legacy inverter brand isn't listed above, contact us directly — we likely still support it or can provide guidance on your options. Many older systems are worth maintaining, and we can help you make the right decision.

Not sure which brand you have?

Check the label on the front of your inverter — the brand name and model number are usually printed there. We also have a guide to identifying your system.

FAQ

Common questions

Yes. We support all major inverter and battery brands including GivEnergy, SolarEdge, Growatt, Sunsynk, Solis, Enphase, Huawei, Fronius, Fox ESS, Tesla Powerwall, and many others. We also support legacy and discontinued brands like Aurora, Eversolar, Solar River, and Trannergy. If your brand isn't listed on this page, contact us — we likely still support it or can advise on your options.
Almost certainly yes. If your brand isn't shown on this page, contact us with your inverter model number and details of the fault. We maintain technical documentation for a much wider range of brands than we've listed here, and our engineers have experience with systems beyond the major mainstream brands. Even if we haven't worked on that specific brand before, our diagnostic methodology and fault-finding approach applies across all solar systems — we can often identify the problem and advise on the best path forward.
All brands develop faults from time to time — there's no brand that's immune to problems. However, in our region GivEnergy and Growatt are among the most common systems we see, which means we encounter a wider variety of faults across these brands simply due to their installation volume. That said, the most common faults (battery not charging, CT clamp reversed, WiFi connectivity, firmware issues) appear across all brands. The good news is that most faults, regardless of brand, have identifiable causes and are fixable once properly diagnosed.
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Not sure what’s wrong? Start with a remote diagnostic

Tell us your inverter brand and model, what the system is doing, and we'll diagnose the fault. Most issues are resolved in a single remote session without a site visit.

  • All major brands supported
  • Same-day availability
  • Written report included

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