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 free remote diagnosticBrilliant support to get my solar battery working again. I didn’t expect help on a Saturday but Ron answered the phone, listened and sent me the information I needed to get it going, answered questions etc. A brilliant service I’d happily recommend.
Ron was brilliant. He really tried to help. He spent hours trying to fix our GivEnergy AIO and ultimately it became apparent that it needed parts to fix the BMS management system. As there appears to be no replacement parts available on the market, he gave excellent advice on what options are now available to move forward. He is incredibly helpful and knowledgeable.
Called back within a day and gave good advice.
Ron was extremely helpful and tried his best to repair/reset our GivEnergy inverter remotely. In the event he was unsuccessful but he couldn’t have been more helpful. If you have problems with a GivEnergy system please contact him. Highly recommended
Big thanks to Ron. He was incredibly patient and helpful over the phone, taking the time to walk myself and the installer through every troubleshooting step. Through lots of testing he figured out the issue was definitely a hardware issue, which allows us to consider our next steps. Support fees are clear and they operate a “no fix no fee” policy. It is rare to find that kind of honesty combined with dedicated phone support nowadays. I highly recommend Ron, if you need help with your solar system don’t hesitate to give him a call.
A superb service from Ron who went beyond the normal service received from other Tech support companies. I live abroad and was badly let down when my givenergy system failed (and the company went bankrupt) and the local supplier ran away from the problem. Ron sorted the problem and even accessed specialist coding for the inverter that would not be available for suppliers. Ron also ran a full diagnostic to insure that all was in good working order afterwards. Without Rons support and patient assistance I doubt I would ever have got the system back up and running. Well done and thankyou and you have a customer for the future.
Brilliant support to get my solar battery working again. I didn’t expect help on a Saturday but Ron answered the phone, listened and sent me the information I needed to get it going, answered questions etc. A brilliant service I’d happily recommend.
Ron was brilliant. He really tried to help. He spent hours trying to fix our GivEnergy AIO and ultimately it became apparent that it needed parts to fix the BMS management system. As there appears to be no replacement parts available on the market, he gave excellent advice on what options are now available to move forward. He is incredibly helpful and knowledgeable.
Called back within a day and gave good advice.
Ron was extremely helpful and tried his best to repair/reset our GivEnergy inverter remotely. In the event he was unsuccessful but he couldn’t have been more helpful. If you have problems with a GivEnergy system please contact him. Highly recommended
Big thanks to Ron. He was incredibly patient and helpful over the phone, taking the time to walk myself and the installer through every troubleshooting step. Through lots of testing he figured out the issue was definitely a hardware issue, which allows us to consider our next steps. Support fees are clear and they operate a “no fix no fee” policy. It is rare to find that kind of honesty combined with dedicated phone support nowadays. I highly recommend Ron, if you need help with your solar system don’t hesitate to give him a call.
A superb service from Ron who went beyond the normal service received from other Tech support companies. I live abroad and was badly let down when my givenergy system failed (and the company went bankrupt) and the local supplier ran away from the problem. Ron sorted the problem and even accessed specialist coding for the inverter that would not be available for suppliers. Ron also ran a full diagnostic to insure that all was in good working order afterwards. Without Rons support and patient assistance I doubt I would ever have got the system back up and running. Well done and thankyou and you have a customer for the future.
CT clamp errors, schedule issues, export limit problems — usually resolved remotely
Component replacement, wiring faults, battery BMS issues, firmware recovery
Full inverter swap including commissioning, settings migration and testing
All costs confirmed in writing before work starts. No surprise invoices.
Fault codes, failed start-up, red lights, arc fault detection triggering. We diagnose first — replace only if necessary.
BMS faults, CAN communication errors, charging failures, calibration issues and firmware recovery across all major battery brands.
System underperforming, panels not contributing to string output, export limit set incorrectly, smart meter integration problems.
CT clamp direction errors, DC connector faults, incorrect isolator ratings, labelling gaps — common in systems installed without proper commissioning.
EPS not activating during a grid outage, missing neutral-earth bond, island mode configuration errors. Tested and verified on-site.
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.
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.
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 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.
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.
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.
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.
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 free remote diagnostic and we'll identify the exact fault and advise on repair options.
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.
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 — remotely (free) or on-site (included in the repair fee if you proceed). This discipline keeps your costs down and your repair targeted.
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.
Configuration faults, connector replacement, firmware recovery, settings correction, single component swaps
Multiple component replacement, battery BMS faults, complex wiring issues, inverter board replacement
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.
The remote diagnostic is free. If it confirms you need an on-site repair visit, the repair is quoted up front (from £245) — and if we can fix it remotely instead, that's a flat £75. You won't be charged twice, and the diagnostic 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.
We start with a free remote diagnostic 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.
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.
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.
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.
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 →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.
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