Batteries and inverters are the most expensive, and most fault-prone, parts of any solar system. Without regular health checks, degraded cells, firmware faults and capacitor failures can quietly cut your storage capacity and export payments in half. Our engineers diagnose and fix the issues before they cost you a full replacement.
Red lights, error codes, or completely dead unit? We diagnose the fault and repair or replace it on the same visit wherever possible.
Battery not holding charge or draining overnight? Our engineers test every cell, identify degraded units and restore your storage capacity.
Noticed your export payments or daily generation dropping? We pinpoint exactly where your system is losing money and fix it.
Outdated firmware is one of the biggest causes of underperforming batteries and inverters. We update, recalibrate and retune your system for peak output.
We're a network of the UK's most trusted, certified solar battery and inverter engineers. Fully qualified across Pylontech, GivEnergy, Tesla, LG and every other major manufacturer. Whatever you've got installed, we can fix it.
Our specialist engineers have the training, parts and diagnostic tools for every major battery and inverter brand, including Pylontech, GivEnergy, Tesla Powerwall, LG Chem, SolarEdge, Growatt, Solax, Fronius and SMA. Whatever you've got, we can repair it.
First, try safely rebooting the system according to your manual. If the fault persists, contact us. Our technicians are experts in solar inverter diagnostics and can often repair the unit without needing a costly replacement, getting you back to generating power quickly.
This is a clear sign that your system is underperforming. The cause could be a faulty inverter, dirty panels, new shading on your roof, or a wiring issue. Our free system survey is designed to pinpoint the exact cause and recommend the most effective solution.
Pigeons and other pests can cause serious damage to your wiring and reduce airflow, which can affect performance. We offer a professional service to clean the area and install a durable, discreet bird protection mesh that permanently solves the problem without harming the birds.
Yes. We have technicians trained to diagnose and repair issues with all major solar battery systems. Whether it’s failing to charge, discharging too quickly, or showing communication errors, we can identify the fault and advise on the best course of action.
We recommend a professional solar panel cleaning service every 1-2 years, or whenever they are visibly dirty. Rain will wash off some dust, but won’t remove stubborn grime or bird droppings. A proper clean ensures you get the maximum efficiency from your panels.
The most common sign is your inverter frequently shutting down on very sunny days, often displaying a “Grid Voltage” or “Overvoltage” error. This stops you from exporting energy. We can diagnose this issue and, if necessary, install a voltage optimiser to ensure your system runs smoothly.
While solar systems are very reliable, they are not zero-maintenance. Just like a car’s MOT, a regular solar maintenance health check is crucial for long-term performance, safety, and longevity. It allows us to catch small issues like loose connections or water ingress before they become serious, expensive problems.
