Solar Inverter Repair Manchester
The inverter is the hardest-working component in your solar PV system, converting DC electricity from your panels into usable AC electricity for your home or business every second of daylight. While solar panels typically last 25-30 years with minimal degradation, inverters have an average lifespan of 10-15 years and are the most common point of failure in any solar installation. When your inverter fails, your entire system stops generating — and every day without generation costs you money.
Manchester Renewables provides expert inverter fault diagnosis and repair across Greater Manchester for all major inverter brands including SolarEdge, GivEnergy, Solis, Huawei, SMA, Fronius and Enphase. Our MCS-certified engineers carry common replacement parts and can often complete repairs in a single visit. For inverters that are beyond economic repair, we supply and install replacement units with full configuration and commissioning.
Inverter faults are not always obvious. A complete shutdown is easy to spot, but many inverters continue to operate at reduced efficiency for months before failing completely. If your generation figures have dropped or your inverter is displaying warning codes, it is worth having it checked sooner rather than later. Early diagnosis often means a simple repair rather than a full replacement.
What Is Included?
Fault Diagnosis & Error Code Analysis
Systematic diagnosis using manufacturer diagnostic software and on-site electrical testing to determine the exact cause of the fault. We analyse error logs, test DC input values, check AC output quality and isolate the fault to a specific component.
Component-Level Repair
Where economically viable, we repair inverters at component level rather than replacing the entire unit. Common repairs include replacing failed capacitors, cooling fans, DC input boards and communication modules, saving you the cost of a full replacement.
Inverter Replacement & Commissioning
When repair is not cost-effective, we supply and install a replacement inverter matched to your system specification. Full commissioning includes string configuration, export limitation settings, G98/G99 compliance and registration with your monitoring platform.
Warranty Claim Support
If your inverter is within its manufacturer warranty period, we handle the warranty claim process on your behalf. We provide the diagnostic evidence required by the manufacturer, arrange the replacement unit and carry out the installation. Most major brands offer 5-12 year warranties.
MCS Consumer Code: Warranty and workmanship protection
All inverter repairs and replacements carried out by Manchester Renewables are covered by the MCS Consumer Code, which provides you with robust consumer protection. Replacement inverters come with the full manufacturer warranty (typically 5-12 years), and our workmanship is guaranteed for two years. If you have a dispute about the quality of work, the MCS Consumer Code provides an independent resolution process.
Why It Matters
- A failed inverter means zero generation — on a 4kW system in Manchester, that is approximately £2.50-£3.00 per day in lost electricity savings and SEG payments
- Many inverters reduce output gradually before failing completely, losing 10-20% efficiency over several months
- Electrical faults within inverters can trip your main consumer unit, cutting power to your entire property
- String inverter failures affect your whole system, while microinverter failures affect only individual panels — knowing your system type determines the urgency
- Replacing a 10-year-old inverter with a modern hybrid unit can add battery storage capability to your existing system
Cost Guidance
Solar inverter repair costs in Manchester vary depending on the fault and the inverter brand. A diagnostic visit and minor repair such as a fan replacement or firmware fix typically costs between £150 and £300. A replacement string inverter for a standard 3.6-5kW domestic system costs between £800 and £1,500 fully installed and commissioned. SolarEdge and Enphase systems with optimisers or microinverters may cost more due to the additional components involved. We always provide a clear quote before proceeding with any work.