Solar Performance
“Why is my solar generating less than usual?”
Not sure what a fault code means, why your solar generation has dropped or whether your battery is behaving normally? Send your question to Mr Solar and our team will help you understand the sensible next step.
You do not need to know the technical language. Tell us what the system is doing, include any warning code you can see and we will help point you in the right direction.
“Why is my solar generating less than usual?”
“What does this red light or error code mean?”
“My solar has completely stopped producing electricity.”
“Why is my battery charging or discharging differently?”
“Will this change affect my Feed-in Tariff or export payments?”
Some questions can be answered from the information you provide, but no remote assessment can electrically test your system, inspect hidden wiring or confirm that an installation is safe.
Common causes including inverter problems, FIT meter issues, dirt, wiring and installation faults.
Solar generation guide →Error-code guidance and professional diagnosis for legacy and modern solar PV inverters.
Inverter fault guide →Professional testing, inspection, inverter replacement, battery diagnostics and system takeover.
Repair support →Ongoing support, servicing and membership options for suitable orphaned solar and battery systems.
Rescue Service →Mr Solar provides professional solar PV and battery testing, inspection and repairs across Norfolk and Suffolk, including systems originally installed by other companies.




Send the details directly to our team and include as much information about the system or fault as possible.
Gorleston: 01493 289118
Norwich: 01603 394104
Keep your existing Contact Form 7 form here.
We can often narrow down the likely cause from the symptoms, fault code, monitoring screenshots and equipment details, but some faults require electrical testing or an engineer on site before a diagnosis can be confirmed.
Only follow the manufacturer’s published user restart procedure. Do not open the inverter or disconnect solar DC connectors.
Yes. Yes. We provide professional repair and Rescue support for suitable systems installed by other companies as well as our own installations.
Yes. We can explain general FIT, generation-meter and export issues. Specific metering or compliance questions may require us to review your system paperwork.
The inverter or battery make/model, exact fault code, postcode, when the issue started and what the monitoring app is showing are all helpful.
Send your question to our Norfolk team for guidance, or book professional support when the problem needs testing or an on-site visit.