Solar inverter fault in Lewes?
Lost generation costs you money every day. Our Lewes team diagnoses and replaces inverters same-week. Call now.
Solar Inverter Replacement & Upgrade in Lewes
Green Earth Sussex provides expert solar inverter replacement services throughout Lewes and Sussex. Solar inverters typically last 10–15 years, and when they fail, your solar system stops generating electricity entirely. We offer fast diagnosis, quality replacement inverters from leading manufacturers, and full system testing to get your solar panels producing again as quickly as possible.
Whether your inverter has failed completely, is showing error codes, or you want to upgrade to a hybrid inverter for battery storage compatibility, our experienced team can help. We work with all major brands and can replace inverters on systems originally installed by other companies — no matter who fitted your original system in Lewes.
Searching for solar inverter replacement Lewes, solar repair Lewes, or fix my solar panels Lewes? We are your local MCS-certified solar specialists with same-week availability across Sussex.
All Brands Covered
Inverter Replacement Lewes
Same Week
Typical Replacement
10yr+
New Inverter Warranty
All Brands
SolarEdge, Fronius, SMA
MCS
Certified Specialists
Common Solar Inverter Problems in Lewes
Is your solar system underperforming or showing faults? Here are the most common inverter issues we diagnose and fix in Lewes.
Inverter Not Turning On
If your inverter display is completely blank or shows no LEDs, the unit may have failed internally. We diagnose DC input, AC output, and internal components to confirm the fault in your Lewes property.
Error Codes & Fault Messages
Modern inverters display error codes for DC overvoltage, ground faults, grid instability, and more. We interpret these codes and fix the root cause — not just clear the message.
Low or Zero Power Output
If your generation has dropped significantly, the inverter may be throttling output or a string may be disconnected. We test each string and the inverter efficiency to find the problem.
Monitoring Offline
WiFi or Ethernet connectivity issues prevent you from tracking performance. We fix communication faults and restore your monitoring app access so you can see what your system is doing.
Overheating & Fan Failure
Inverters need proper ventilation. Overheating causes shutdowns and shortens lifespan. We check installation location, fan operation, and thermal management in your Lewes setup.
Want Battery Compatibility
Older inverters cannot work with batteries. We replace your existing inverter with a hybrid unit so you can add Tesla Powerwall, GivEnergy, or other battery storage to your Lewes solar system.
Inverter Replacement
Replace failed or outdated solar inverters with modern, efficient models from leading brands
Hybrid Upgrades
Upgrade to a hybrid inverter to unlock battery storage compatibility for your existing solar system
All Brands Covered
SolarEdge, Fronius, SMA, GivEnergy, Solax, Solis, Huawei and more — we work with them all
Fast Turnaround
Quick diagnosis and same-week replacement to minimise downtime and lost generation
Warranty Support
Manufacturer warranty claim assistance and replacement coordination included
Full Recommissioning
Complete system testing and performance optimisation after every replacement
How Inverter Replacement Works in Lewes
Our streamlined process gets your solar system back online fast — most inverter replacements in Lewes complete within a single visit.
Diagnosis
We test your Lewes solar system and inverter to confirm the exact fault and replacement requirements
Quote & Source
We source the right replacement inverter and provide a clear, fixed-price quote with warranty details
Replacement
Our Lewes team safely removes the faulty inverter and installs the new unit with proper isolators and cabling
Testing
Full DC and AC testing, string voltage checks, and grid connection verification to ensure safe operation
Back Online!
System recommissioned, monitoring reconnected, and generation restored — you start saving again immediately
How Much Does Solar Inverter Replacement Cost in Lewes?
Transparent inverter replacement pricing for Lewes homeowners. All prices include supply, installation, testing, and warranty registration.
| Inverter Type | Capacity | Typical Cost | Warranty | Best For |
|---|---|---|---|---|
| String Inverter | 3–5 kW | £800 – £1,500 | 5–10 years | Standard residential |
| String Inverter | 5–10 kW | £1,200 – £2,500 | 5–10 years | Larger homes |
| Hybrid Inverter | 3–6 kW | £1,500 – £3,000 | 10 years | Battery-ready upgrade |
| Micro-Inverter | Per panel | £80 – £150 each | 20–25 years | Shaded roofs |
| Power Optimizer | Per panel | £60 – £100 each | 25 years | SolarEdge systems |
| Commercial Inverter | 10–50 kW | £2,500 – £8,000 | 5–10 years | Business properties |
Prices are indicative for Lewes properties. Final cost depends on inverter brand, capacity, cable runs, and scaffolding access. Free diagnosis and quote available.
Get a Free Inverter Diagnosis in Lewes
Solar system down in Lewes? Fill in our quick form and a local inverter specialist will diagnose your system and provide a fixed-price replacement quote within 24 hours.
Get a Free Quote for Solar Inverter Replacement Lewes
Request your free, no-obligation quote today. Our NAPIT approved electricians cover all of Sussex and the surrounding areas. We'll get back to you within 2 hours during business hours.
NAPIT Accredited
All work fully certified to BS 7671 standards
Fast Response
We respond within 2 hours during business hours
Transparent Pricing
Fixed-price quotes with no hidden fees
Fully Insured
All work guaranteed and comprehensively insured
Prefer to call or message?
Request Your Free Quote
We'll respond within 2 hours during business hours.
Our Inverter Services in Lewes
Whether you need a like-for-like replacement or a hybrid upgrade in Lewes, we cover every aspect of your inverter project.
Inverter Replacement Lewes
- Fast fault diagnosis and inverter testing
- Like-for-like inverter replacements
- String inverter and micro-inverter replacement
- All major brands: SolarEdge, Fronius, SMA, GivEnergy, Solax
- Manufacturer warranty claim support
- Full system recommissioning and testing
Inverter Upgrades Lewes
- Upgrade to hybrid inverters for battery compatibility
- Higher efficiency modern inverter technology
- Smart monitoring and WiFi connectivity
- Increased power output capacity
- Future-proof your solar system
- Export limitation and G99 compliance
Fault Finding & Diagnosis
- Comprehensive solar system diagnostics in Lewes
- Inverter error code interpretation
- DC and AC voltage testing
- String performance analysis
- Isolator and connection checks
- Detailed fault reports and recommendations
Warranty & Support
- Manufacturer warranty claim assistance
- Liaison with inverter manufacturers
- Warranty replacement coordination
- New inverter warranties up to 10 years
- Workmanship guarantee on all installations
- Ongoing technical support and advice
Inverter Brands We Replace & Install in Lewes
We work with all major solar inverter manufacturers. If your brand is not listed, we can still help — just ask.
SolarEdge
Power Optimizers
12yr Warranty
Fronius
Austrian Quality
10yr Warranty
SMA
German Reliability
10yr Warranty
GivEnergy
Battery Hybrid
10yr Warranty
Solax
Budget Hybrid
10yr Warranty
Solis
Value String
10yr Warranty
Add Battery Storage Lewes
Replacing your inverter? This is the perfect time to upgrade to a hybrid inverter and add battery storage. Store surplus solar energy for evenings and power cuts.
Most Lewes homeowners save an additional £300–£500 per year with battery storage. We handle both the inverter replacement and battery installation in one coordinated visit.
Explore Battery RetrofitsNew Solar Installation Lewes
If your entire solar system is outdated, it may be more cost-effective to install a new solar PV system with a modern inverter. MCS-certified with 25-year warranties.
Our Lewes team provides free surveys for new solar installations, including system design, shading analysis, and clear pricing.
Explore Solar PanelsWhy Choose Green Earth Sussex in Lewes?
When your solar inverter fails in Lewes, you need a fast, reliable local specialist. Here is why homeowners choose us.
Fast Response
Same-week diagnosis and replacement for Lewes homes. We know every day offline costs you money.
All Brands Covered
We work with SolarEdge, Fronius, SMA, GivEnergy, Solax, Solis, Huawei, and more — no matter who installed your system.
MCS Certified
Fully MCS-certified solar specialists with years of hands-on inverter experience across Sussex.
Warranty Support
We handle manufacturer warranty claims and coordinate replacements on your behalf at no extra cost.
Truly Local Sussex Team
Based in Brighton — not a national call centre. Our engineers are on the road across Lewes and Sussex daily.
5-Star Reviews
Hundreds of verified reviews from Sussex homeowners who trust us with their solar repairs and replacements.
Solar Inverter Replacement Lewes — FAQs
Common questions about solar inverter replacement, repairs, and upgrades in Lewes.
How do I know if my solar inverter needs replacing in Lewes?
How much does solar inverter replacement cost in Lewes?
How long does inverter replacement take in Lewes?
Can you replace an inverter from a different installer?
Should I upgrade to a hybrid inverter when replacing?
What inverter brands do you recommend for Lewes?
Will my solar panels still work during inverter replacement?
Do you help with manufacturer warranty claims?
Related Renewable Energy Services in Lewes
Explore our full range of solar and battery services for Lewes — all delivered by your local MCS-certified team.
Solar Inverter Replacement Across Sussex
We are your local solar inverter specialists across Sussex. Select your area for local service information and a free diagnostic.
Solar Inverter Down in Lewes?
Do not lose another day of solar generation. Our MCS-certified Lewes team diagnoses and replaces inverters same-week. Call now or request a free quote.