Solar Panel Repair Manchester
When your solar panel system develops a fault, you need it diagnosed and repaired quickly to minimise lost generation. Whether it is an inverter that has stopped working, panels producing significantly less power than expected, error codes on your monitoring app or a complete system shutdown, Manchester Renewables has the experience and equipment to identify the problem and fix it fast.
Our MCS-certified engineers carry out solar panel repairs across the whole of Greater Manchester, working on all major brands including SolarEdge, Enphase, GivEnergy, Solis, Huawei, Growatt and Fox ESS. We repair systems originally installed by any company, not just our own. With thermal imaging cameras, IV curve tracers and advanced diagnostic tools, we pinpoint faults that other installers miss and provide honest advice on whether a repair or replacement is the most cost-effective solution.
What Is Included?
Comprehensive Fault Diagnostics
We use thermal imaging, IV curve tracing and electrical testing to identify the exact cause of underperformance. This goes far beyond simply reading an error code. We test at panel level, string level and inverter level to isolate the fault precisely.
Inverter Repair & Replacement
Inverter failure is the most common solar panel fault. We diagnose and repair string inverters, micro-inverters and hybrid inverters from all major manufacturers. Where replacement is needed, we carry common models in stock for same-week turnaround.
Panel-Level Repairs
Micro-cracks, hot spots, snail trails, junction box failures and bypass diode faults are all issues we diagnose and resolve. Where a panel is beyond repair, we source compatible replacements to match your existing array.
Wiring & Connection Repairs
Degraded MC4 connectors, damaged DC cables, water ingress into junction boxes and earth fault loop issues are common in ageing systems. We replace and reterminate all cabling to current IET Wiring Regulations standards.
Post-Repair Testing & Certification
After every repair, we carry out full electrical testing to IEC 62446 standards and provide a test certificate confirming your system is safe and performing correctly. We also verify the fix through your monitoring system.
Smart Export Guarantee (SEG): Up to 15p/kWh for exported electricity
Every day your solar system is underperforming or offline, you are losing both free electricity and SEG export income. A 4kW system in Manchester should generate around 3,400 kWh per year. If a fault has reduced your output by 30%, that is over 1,000 kWh of lost generation annually. At current electricity prices of around 24p per kWh plus SEG payments, a prompt repair can save you £300 or more per year.
Why It Matters
- A faulty inverter means zero generation, potentially costing you £2-4 per day in lost electricity on a typical 4kW system
- Micro-cracks and hot spots worsen over time and can become safety hazards if left unrepaired
- A single underperforming panel can drag down the output of an entire string, costing far more than the repair
- Many faults are covered under manufacturer warranty, but you need an MCS-certified engineer to make a valid claim
Cost Guidance
Solar panel repair costs in Manchester vary depending on the fault. A diagnostic visit and minor repair such as replacing a fuse, resetting an inverter or reterminating a connector typically costs between £120 and £200. Inverter replacements range from £500 to £1,500 depending on the unit. Panel replacements are usually £200-£400 per panel including fitting. We always provide a clear, fixed-price quote before carrying out any work, and we will tell you honestly if a repair is not worth the cost.