All 19 major brands sold in the UK: GivEnergy, Sunsynk, SolarEdge, Growatt, Solis, Enphase, Fronius, Fox ESS, Huawei, Tesla Powerwall, AlphaESS, Sigenergy, Duracell Energy, SolaX, Pylontech, Sofar Solar, Hanchu, Lux/LuxPowerTek, and Dyness. Each brand has its own monitoring platform, fault code system, and common failure patterns — we know them all. If you're unsure whether your system is covered, ask before booking.
Common questions · Solar support
Frequently asked questions solar inverter & battery support
Common questions about how diagnostics work, which brands we support, what causes typical faults, and how to get started.
- Covers all major UK inverter and battery brands
- Remote and on-site services explained
- Written by solar engineers — no generic answers
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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
FAQ
Brands & compatibility
Yes. We diagnose and fix battery storage issues including charging failures, overnight charge problems, discharge issues, temperature errors, BMS communication faults, and battery monitoring going offline. Battery diagnostics work the same way as inverter diagnostics — remote access to monitoring, analysis of fault codes and performance data, and a clear action plan.
That's fine — mixed-brand systems are common and we handle them routinely. We'll require access to both monitoring platforms and we'll analyse the communication between them. If the inverter isn't talking to the battery correctly (CAN bus, RS485 comms failure), we'll identify that. If only one unit is faulty, we'll tell you which one and why. Our cross-brand expertise lets us spot compatibility and integration issues that single-brand technicians often miss.
Yes. An independent diagnostic doesn't invalidate your warranty — we work alongside it. In fact, our diagnostic report is often what makes a warranty claim stick. If you need a manufacturer replacement, our independent written report provides the evidence they need. If the fault is repairable without going through the manufacturer, we'll tell you that too so you can choose the fastest route. We also offer a dedicated Warranty Claim Support service if you need us to handle the manufacturer escalation directly.
FAQ
Faults & diagnosis
Yes. Fault codes are one of the first things we review. Every brand uses different codes — what GivEnergy calls an "F01" is completely different from Growatt's "Err6" or SolarEdge's "Grid Fault". We decode what the code means, why it appeared, and what triggered it. Some codes indicate immediate shutdown is required; others are warnings that are safe to reset. We tell you exactly which it is, whether a reset is safe to attempt, and what needs to happen next.
Often yes. Overnight charging failures are most commonly caused by settings issues — export limits, charge schedules, operating mode (Eco vs Timed Charge), or power limits. Firmware updates on GivEnergy, Growatt, and Sunsynk have historically reset charge schedules silently. We review your settings, generation history, and tariff, then correct them safely. If it turns out to be a hardware fault (BMS issue, degraded cells), we'll diagnose that remotely and recommend on-site work if needed.
It means the inverter is generating, but can't communicate with its monitoring server. Common causes: WiFi password changed after a router replacement, the inverter's WiFi dongle lost its connection and didn't reconnect, or the monitoring account was deleted or expired. Most of these are remotely fixable — we can reset the WiFi configuration or recover the account. Some require physical access to restart the WiFi module. We diagnose which situation you're in, then advise clearly on next steps.
Very common, especially with GivEnergy, Growatt, and Sunsynk systems. Inverters and batteries have internal clocks used for charge scheduling. Some don't auto-update when clocks change, so the schedule shifts by an hour — the battery charges at 2am instead of 1am, missing the cheap-rate window. Easily fixed remotely by updating the system clock or adjusting the schedule offset. We do this regularly in March and October.
FAQ
Monitoring & access
Simple and secure. Log into your inverter monitoring app (GivEnergy portal, Growatt ShinePhone, SolarEdge monitoring, etc.). Go to Settings → Users or Share, then create a temporary read-only user account and send us the credentials, or use a share link. You control exactly what we see. We never have write access to change settings unless you explicitly grant it, and you can delete the shared account at any time after the diagnostic.
We can still diagnose. For older systems without monitoring or where access has been lost, we work from physical readings on the inverter display, fault codes, and visual inspection — which usually means an on-site visit. If you want monitoring restored, our Monitoring Account Transfer service (£75) handles the manufacturer escalation and account recovery for all 19 major brands.
Yes. This is exactly what our Monitoring Account Transfer service (£75) covers. If the installer registered the account under their company name, or you've bought a house with an existing solar system, we contact the manufacturer directly, authenticate you as the property owner, and transfer the monitoring account to your name. Includes all documentation handling. Typically 3–7 working days; longer for complex installer-registered cases.
FAQ
Pricing & booking
Visit solar-tech-support.co.uk/book/. Select the service you need (Remote Diagnostic, Health Check, On-site Inspection, etc.), choose your preferred date and time, and complete the booking form. You'll receive a confirmation email within 2 hours with appointment details, what to prepare, and how to share monitoring access before the session.
We'll tell you clearly at the end of the remote diagnostic: what the fault is, why it needs on-site work, and a transparent quote for an on-site repair visit. You then decide whether to proceed. You're never obligated to book further work — but you'll have a precise diagnosis and all the information needed to make an informed decision, whether that's hiring us to fix it or getting quotes elsewhere.
Yes, typically. The £75 remote diagnostic fee is offset against the on-site repair service fee if you proceed to book an on-site repair. You're not paying for the same work twice — the diagnostic is the foundation of the repair scope, so it's counted toward the total. See our pricing page for full details.
Yes. The Solar Health Plan is a standing check on your system — regular review of generation performance, battery health, settings verification, and firmware tracking. It's designed to catch problems before they cost real money, rather than waiting until something fails. If you'd prefer ad-hoc support, we also offer pay-as-you-go diagnostics and repairs.
FAQ
Getting started
A remote diagnostic is a 30-minute session where you give us temporary read-only access to your inverter monitoring account (e.g., GivEnergy portal, Growatt app, SolarEdge monitoring). We analyse your system's generation data, battery status, fault codes, and performance history. We may ask you to check physical readings on the inverter display or confirm circuit breaker positions. At the end, we explain the fault in plain language and provide a written action plan. Most faults are identified and resolved remotely; some require on-site inspection.
Very little preparation is needed. Ideally have your inverter visible so you can check physical readings if needed. Have your monitoring account open and ready to share read-only access — this takes about two minutes via app or web portal. Write down any fault codes displayed on the inverter screen, or note the symptoms ("hasn't generated for 3 days", "battery won't charge past 40%"). That's it — we'll handle everything else.
For remote diagnostics, usually no. We work through your monitoring account and may ask you to check readings on the inverter display. However, some faults do require on-site inspection — if we identify physical damage, a loose connection, or evidence of water ingress, we'll recommend an on-site visit and explain exactly why. We always tell you upfront whether your fault can be diagnosed and resolved remotely.
Remote diagnostics are available same-day or next-day in most cases. On-site visits are typically available within 5 working days. Emergency callouts (total system failure) are prioritised for same-day response UK-wide. When you book, you'll see all available slots. Confirmation is sent within 2 hours with appointment details and what to prepare.
All 19 major brands sold in the UK: GivEnergy, Sunsynk, SolarEdge, Growatt, Solis, Enphase, Fronius, Fox ESS, Huawei, Tesla Powerwall, AlphaESS, Sigenergy, Duracell Energy, SolaX, Pylontech, Sofar Solar, Hanchu, Lux/LuxPowerTek, and Dyness. Each brand has its own monitoring platform, fault code system, and common failure patterns — we know them all. If you're unsure whether your system is covered, ask before booking.
Yes. We diagnose and fix battery storage issues including charging failures, overnight charge problems, discharge issues, temperature errors, BMS communication faults, and battery monitoring going offline. Battery diagnostics work the same way as inverter diagnostics — remote access to monitoring, analysis of fault codes and performance data, and a clear action plan.
That's fine — mixed-brand systems are common and we handle them routinely. We'll require access to both monitoring platforms and we'll analyse the communication between them. If the inverter isn't talking to the battery correctly (CAN bus, RS485 comms failure), we'll identify that. If only one unit is faulty, we'll tell you which one and why. Our cross-brand expertise lets us spot compatibility and integration issues that single-brand technicians often miss.
Yes. An independent diagnostic doesn't invalidate your warranty — we work alongside it. In fact, our diagnostic report is often what makes a warranty claim stick. If you need a manufacturer replacement, our independent written report provides the evidence they need. If the fault is repairable without going through the manufacturer, we'll tell you that too so you can choose the fastest route. We also offer a dedicated Warranty Claim Support service if you need us to handle the manufacturer escalation directly.
Yes. Fault codes are one of the first things we review. Every brand uses different codes — what GivEnergy calls an "F01" is completely different from Growatt's "Err6" or SolarEdge's "Grid Fault". We decode what the code means, why it appeared, and what triggered it. Some codes indicate immediate shutdown is required; others are warnings that are safe to reset. We tell you exactly which it is, whether a reset is safe to attempt, and what needs to happen next.
Often yes. Overnight charging failures are most commonly caused by settings issues — export limits, charge schedules, operating mode (Eco vs Timed Charge), or power limits. Firmware updates on GivEnergy, Growatt, and Sunsynk have historically reset charge schedules silently. We review your settings, generation history, and tariff, then correct them safely. If it turns out to be a hardware fault (BMS issue, degraded cells), we'll diagnose that remotely and recommend on-site work if needed.
It means the inverter is generating, but can't communicate with its monitoring server. Common causes: WiFi password changed after a router replacement, the inverter's WiFi dongle lost its connection and didn't reconnect, or the monitoring account was deleted or expired. Most of these are remotely fixable — we can reset the WiFi configuration or recover the account. Some require physical access to restart the WiFi module. We diagnose which situation you're in, then advise clearly on next steps.
Very common, especially with GivEnergy, Growatt, and Sunsynk systems. Inverters and batteries have internal clocks used for charge scheduling. Some don't auto-update when clocks change, so the schedule shifts by an hour — the battery charges at 2am instead of 1am, missing the cheap-rate window. Easily fixed remotely by updating the system clock or adjusting the schedule offset. We do this regularly in March and October.
Simple and secure. Log into your inverter monitoring app (GivEnergy portal, Growatt ShinePhone, SolarEdge monitoring, etc.). Go to Settings → Users or Share, then create a temporary read-only user account and send us the credentials, or use a share link. You control exactly what we see. We never have write access to change settings unless you explicitly grant it, and you can delete the shared account at any time after the diagnostic.
We can still diagnose. For older systems without monitoring or where access has been lost, we work from physical readings on the inverter display, fault codes, and visual inspection — which usually means an on-site visit. If you want monitoring restored, our Monitoring Account Transfer service (£75) handles the manufacturer escalation and account recovery for all 19 major brands.
Yes. This is exactly what our Monitoring Account Transfer service (£75) covers. If the installer registered the account under their company name, or you've bought a house with an existing solar system, we contact the manufacturer directly, authenticate you as the property owner, and transfer the monitoring account to your name. Includes all documentation handling. Typically 3–7 working days; longer for complex installer-registered cases.
Visit solar-tech-support.co.uk/book/. Select the service you need (Remote Diagnostic, Health Check, On-site Inspection, etc.), choose your preferred date and time, and complete the booking form. You'll receive a confirmation email within 2 hours with appointment details, what to prepare, and how to share monitoring access before the session.
We'll tell you clearly at the end of the remote diagnostic: what the fault is, why it needs on-site work, and a transparent quote for an on-site repair visit. You then decide whether to proceed. You're never obligated to book further work — but you'll have a precise diagnosis and all the information needed to make an informed decision, whether that's hiring us to fix it or getting quotes elsewhere.
Not applicable — the remote diagnostic is free. If on-site work is needed, the visit fee starts at £245 service fee if you proceed to book an on-site repair. You're not paying for the same work twice — the diagnostic is the foundation of the repair scope, so it's counted toward the total. See our pricing page for full details.
Yes. The Solar Health Plan is a standing check on your system — regular review of generation performance, battery health, settings verification, and firmware tracking. It's designed to catch problems before they cost real money, rather than waiting until something fails. If you'd prefer ad-hoc support, we also offer pay-as-you-go diagnostics and repairs.
Get in touch
Still have questions?
If your question isn't answered above, get in touch. We're happy to talk through your specific system and help you understand the best next step — before you commit to anything.
- No obligation to book after getting in touch
- Most questions answered same day
- Free to ask — we charge for the work, not the chat
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