Skip to content

Solar system repair on-site diagnosis and repair

We diagnose and repair solar PV and battery storage systems across the UK. All major brands. No guesswork, no blank-cheque repairs — you'll know the full cost before an engineer touches your system.
  • All major inverter and battery brands
  • Fixed quote before work begins
  • Engineer-led, independent
Book a solar repair

Not sure of the fault? Start with a free remote diagnostic (no fix, no fee) — the cost is not wasted if a visit is needed.

Book a repairStart with a remote diagnostic — £75
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

Repair pricing

Configuration faults
£75

CT clamp errors, schedule issues, export limit problems — usually resolved remotely

Most on-site repairs
£245–£599

Component replacement, wiring faults, battery BMS issues, firmware recovery

Inverter replacement
£795–£1,200

Full inverter swap including commissioning, settings migration and testing

All costs confirmed in writing before work starts. No surprise invoices.

What we repair
Inverter faults

Fault codes, failed start-up, red lights, arc fault detection triggering. We diagnose first — replace only if necessary.

Battery storage problems

BMS faults, CAN communication errors, charging failures, calibration issues and firmware recovery across all major battery brands.

Generation and export issues

System underperforming, panels not contributing to string output, export limit set incorrectly, smart meter integration problems.

Wiring and installation faults

CT clamp direction errors, DC connector faults, incorrect isolator ratings, labelling gaps — common in systems installed without proper commissioning.

EPS and backup power failures

EPS not activating during a grid outage, missing neutral-earth bond, island mode configuration errors. Tested and verified on-site.

System recovery after installer failure

Incomplete installations, missing commissioning, systems handed over without documentation. We recover and document what should have been done at installation.

Not sure which category your fault falls into? Use the fault finder or book a remote diagnostic and we'll identify it for you.

Types of solar repair we carry out

Solar PV and battery storage systems are complex. Faults can appear in different components — from the inverter itself to wiring, battery management systems, and monitoring hardware. Below we outline the types of repair we handle regularly, and the brands we support.

Inverter repair and replacement

Inverters are the heart of your solar system — they convert DC power from your panels into AC power for your home. Faults include: failure to start, fault codes, arc fault detection, earth leakage alarms, and repeated trip-out. We diagnose first — in many cases, a firmware update or settings reset resolves the issue without component replacement. If replacement is needed, we supply and fit new units for all major brands: SolarEdge, GivEnergy, Sunsynk, Growatt, Solis, Enphase, and more. We handle full decommissioning of the old unit, new unit configuration, and testing of all modes (grid-tie, battery charge/discharge, EPS).

Battery system repair

Battery storage systems can develop multiple types of faults: BMS (battery management system) errors, CAN communication failures between battery and inverter, cell imbalance, charging failures, and firmware corruption. We repair and replace battery modules, recalibrate cell balancing where possible, and recover systems from communication loss. We support all major lithium battery brands including GivEnergy, Sunsynk, Growatt, LG Chem, and others. In cases where a battery module has failed, we can source and fit replacement modules or swap the entire battery pack if more cost-effective.

DC wiring and connector repair

The DC side of your solar array carries high voltages and currents. Faults here can cause arcing and fire risk. Common issues: loose or corroded MC4 connectors, damaged DC cabling, undersized or incorrectly-routed string wiring, and missing or damaged junction box covers. We inspect all DC wiring, test continuity and insulation, replace damaged connectors, and upgrade cabling or routing where required for compliance and safety. This type of repair is often found in older systems or those installed without proper commissioning.

AC isolator and switchgear replacement

The AC side includes isolators, MCBs (miniature circuit breakers), RCDs (residual current devices), and surge protection. Faults include: tripped RCD that won't reset, faulty isolator preventing system shutdown, and aging switchgear past replacement intervals. We can replace faulty units, upgrade protection, and ensure your system meets current wiring regulations. We liaise with your DNO (distribution network operator) if grid-side work is needed.

Panel-level fault resolution

Individual solar panels can fail or degrade. Faults include: bypass diode failure (causing panel underperformance), cracked glass, delamination, and junction box failures. We use thermal imaging to identify problem panels, replace failed bypass diodes, and replace entire panels if damage is irreparable. We also resolve string-level imbalance where one or more panels are dragging down the output of the entire string — a common issue in older installations.

Monitoring and communication module replacement

Modern solar systems communicate via WiFi, Ethernet, or cellular dongles to transmit data to the cloud. Communication failures prevent remote monitoring and can block inverter functionality. We diagnose and replace faulty monitoring modules, re-establish connectivity, and restore cloud logging. We support all major monitoring platforms and can recover systems where installers have disconnected modules without proper commissioning handover.

Not sure which component is faulty? Start with a remote diagnostic (£75) and we'll identify the exact fault and advise on repair options.

How repair pricing works

We believe in transparent, fixed pricing. You'll never receive a surprise bill. Here's how our repair pricing works and what you can expect to pay.

Why we always diagnose before quoting

Solar faults can have multiple root causes. Attempting a repair without knowing the exact fault risks ordering the wrong parts, wasting an engineer visit, and doubling your costs. We always diagnose first — either remotely (£75) or on-site (included in the repair fee if you proceed). This discipline keeps your costs down and your repair targeted.

What's included in the from-£245 repair price

The base repair fee covers: on-site diagnostic, labour to carry out the repair, testing of the repaired system, and a post-repair report. It does not include replacement components — parts are quoted separately once we know what's needed. For example, if your inverter needs a replacement control board, that component cost is separate from the labour cost; we quote both upfront before proceeding.

Typical cost ranges

Minor repairs
£245–£399

Configuration faults, connector replacement, firmware recovery, settings correction, single component swaps

Major repairs
£400–£599

Multiple component replacement, battery BMS faults, complex wiring issues, inverter board replacement

Inverter replacement
£795–£1,200

Full inverter swap including commissioning, settings migration, configuration, and full system testing

These ranges are for labour only. If replacement parts are needed, we provide a separate itemised quote for the component cost. You approve the total (labour + parts) before any work starts.

How the £75 remote diagnostic offsets against on-site work

If you book a remote diagnostic first (£75), and it confirms you need an on-site repair visit, the diagnostic fee is deducted from the repair invoice. You won't be charged twice. The remote diagnostic also means the engineer arrives with the fault already identified — reducing on-site time and costs. See our remote diagnostic service page for more details.

Have questions about pricing for your specific fault? Contact us with a description of the issue and we'll give you a ballpark estimate before booking. See our full pricing page for complete transparency.

The repair process

1
Diagnostic first

We start with a remote diagnostic (£75) to identify the exact fault. Many faults are resolved at this stage. If a site visit is needed, the diagnostic means the engineer visit is targeted — no time wasted identifying the fault on-site.

2
Written quote before any work

Once we know what's needed, you receive a written cost. We don't begin repair work until you've agreed the price. If parts need ordering, we'll confirm lead times before booking the visit.

3
On-site repair and testing

The engineer carries out the repair, tests all affected systems, and verifies correct operation — generation, battery charge/discharge, export, and EPS where fitted. We don't leave until the system is working correctly.

4
Post-repair report

You receive a written report of what was found, what was repaired, and a post-repair health snapshot. If any further risks were identified during the visit, they'll be in the report with a recommendation.

On-site solar repair across Yorkshire & beyond

We carry out solar panel and system repairs on-site across a wide coverage area from our Yorkshire base — including Leeds, Bradford, Wakefield, Harrogate, York, Sheffield, Huddersfield, Doncaster, Hull, Barnsley, Scunthorpe, Grimsby, Mansfield, Derby, Nottingham, Manchester, Darlington, and Middlesbrough.

See all areas we cover →
FAQ

Common questions about solar repairs

Most solar system repairs are £245–£599. Complex inverter replacements are typically £795–£1,200. Configuration faults (CT clamp, export limit, charge schedule) are usually resolved remotely (free if we can't fix). We always confirm the full cost in writing before starting work — there are no surprise invoices.
Yes — and that's in your interest, not just ours. Starting a repair without knowing the exact fault risks ordering the wrong parts and wasting an engineer visit. A remote diagnostic (£75) identifies the fault first, and the fee is not duplicated if on-site work follows.
Yes. We travel to all areas of the UK for on-site repair work. A mileage charge may apply for locations far from Yorkshire. Contact us to confirm availability and any travel costs for your area before booking.
On-site time is typically 2–4 hours for a standard repair. This includes diagnosis, repair, testing, and the post-repair report. Complex repairs or inverter replacements may take longer. If parts need to be ordered, we arrange a separate follow-up visit — we confirm the timeline before booking. Once you approve the quote, we work to complete the repair as quickly as safely and thoroughly possible.
We carry common replacement components on the van: inverter control boards, communication modules, MC4 connectors, DC isolators, fuses, and RCD devices. This allows us to complete many repairs on the first visit. For larger components like full inverter units or battery modules, we order in advance once you've approved the quote — this is more cost-effective than stocking every possible part. We coordinate delivery to minimise delay.
All repair work carries a 12-month warranty on labour. If a repair fails due to our workmanship within 12 months, we'll return and fix it at no charge (travel costs may apply). Replacement components carry the manufacturer's warranty — we pass this on to you. If an inverter or battery replacement fails within the manufacturer's warranty period, component warranty is honoured. Any issues related to installer faults outside our control are noted in the post-repair report and fall outside the labour warranty.
Repair

Ready to get your system working again?

We diagnose remotely first, confirm a fixed price, then carry out the repair on-site if needed. No guesswork, no surprise bills. Written quote before any work begins.

  • Written quote before any work begins
  • Remote diagnostic first — no unnecessary site visits
  • All major brands · UK-wide coverage

By submitting you agree to be contacted about your diagnostic request. We don't share your data with 3rd parties.

Call 07944 877 329 Book free diagnostic