Most Solis faults are diagnosed remotely in a single session. Tell us what you're seeing and we'll work it out.
Book your free remote diagnosticSee the Solar Health PlanSafety: If the inverter is showing a fault, note the code displayed and share it with us when you book.
Brilliant support to get my solar battery working again. I didn’t expect help on a Saturday but Ron answered the phone, listened and sent me the information I needed to get it going, answered questions etc. A brilliant service I’d happily recommend.
Ron was brilliant. He really tried to help. He spent hours trying to fix our GivEnergy AIO and ultimately it became apparent that it needed parts to fix the BMS management system. As there appears to be no replacement parts available on the market, he gave excellent advice on what options are now available to move forward. He is incredibly helpful and knowledgeable.
Called back within a day and gave good advice.
Ron was extremely helpful and tried his best to repair/reset our GivEnergy inverter remotely. In the event he was unsuccessful but he couldn’t have been more helpful. If you have problems with a GivEnergy system please contact him. Highly recommended
Big thanks to Ron. He was incredibly patient and helpful over the phone, taking the time to walk myself and the installer through every troubleshooting step. Through lots of testing he figured out the issue was definitely a hardware issue, which allows us to consider our next steps. Support fees are clear and they operate a “no fix no fee” policy. It is rare to find that kind of honesty combined with dedicated phone support nowadays. I highly recommend Ron, if you need help with your solar system don’t hesitate to give him a call.
A superb service from Ron who went beyond the normal service received from other Tech support companies. I live abroad and was badly let down when my givenergy system failed (and the company went bankrupt) and the local supplier ran away from the problem. Ron sorted the problem and even accessed specialist coding for the inverter that would not be available for suppliers. Ron also ran a full diagnostic to insure that all was in good working order afterwards. Without Rons support and patient assistance I doubt I would ever have got the system back up and running. Well done and thankyou and you have a customer for the future.
Brilliant support to get my solar battery working again. I didn’t expect help on a Saturday but Ron answered the phone, listened and sent me the information I needed to get it going, answered questions etc. A brilliant service I’d happily recommend.
Ron was brilliant. He really tried to help. He spent hours trying to fix our GivEnergy AIO and ultimately it became apparent that it needed parts to fix the BMS management system. As there appears to be no replacement parts available on the market, he gave excellent advice on what options are now available to move forward. He is incredibly helpful and knowledgeable.
Called back within a day and gave good advice.
Ron was extremely helpful and tried his best to repair/reset our GivEnergy inverter remotely. In the event he was unsuccessful but he couldn’t have been more helpful. If you have problems with a GivEnergy system please contact him. Highly recommended
Big thanks to Ron. He was incredibly patient and helpful over the phone, taking the time to walk myself and the installer through every troubleshooting step. Through lots of testing he figured out the issue was definitely a hardware issue, which allows us to consider our next steps. Support fees are clear and they operate a “no fix no fee” policy. It is rare to find that kind of honesty combined with dedicated phone support nowadays. I highly recommend Ron, if you need help with your solar system don’t hesitate to give him a call.
A superb service from Ron who went beyond the normal service received from other Tech support companies. I live abroad and was badly let down when my givenergy system failed (and the company went bankrupt) and the local supplier ran away from the problem. Ron sorted the problem and even accessed specialist coding for the inverter that would not be available for suppliers. Ron also ran a full diagnostic to insure that all was in good working order afterwards. Without Rons support and patient assistance I doubt I would ever have got the system back up and running. Well done and thankyou and you have a customer for the future.
Every fault below has a proven diagnostic path. Click through for the specific page or book a diagnostic if you're unsure.
Inverter powered but not generating. Check the SolisCloud dashboard for error codes. Common causes: DC isolator tripped, string fault, or grid disconnection fault. Solis inverters give a clear fault description in the monitoring.
See diagnostic guide →The inverter has disconnected from the grid because AC voltage exceeded G98/G99 limits. Common in streets with multiple solar systems. The inverter reconnects automatically, but if trips are frequent, export limiting or DNO notification may be required.
See diagnostic guide →SolisCloud shows generation well below expectations for your location and panel count. Could be partial string failure, soiled panels, or an inverter operating at reduced capacity. We compare expected vs actual output to isolate the fault.
See diagnostic guide →SolisCloud (formerly Ginlong Portal) shows no data. The WiFi datalogger has lost connectivity. Usually caused by router change, password update, or logger hardware failure. The inverter continues operating normally when monitoring is dark.
See diagnostic guide →Solis dataloggers require 2.4GHz WiFi. After a router upgrade or change, the logger needs reconfiguring. We walk through the SolisCloud logger setup process remotely.
See setup guide →System generating but not exporting to the grid. Most commonly caused by the export limit setting in the inverter being set to zero, a failed CT clamp, or a G98 export configuration error.
See diagnostic guide →Solis inverters use a CT clamp to measure grid import/export. If installed backwards, the inverter misreads grid flow — leading to incorrect export limiting, wrong energy accounting, and battery dispatch errors on hybrid models.
See diagnostic guide →Solis inverter completely dead — no display, no fans, no response. Could be a failed AC or DC isolator, a wiring fault at the inverter input, or a hardware failure. Safety note: do not open the inverter.
See diagnostic guide →Solis inverters display error codes on the LED panel and in SolisCloud. Common categories: grid fault codes (voltage, frequency), isolation fault codes, DC bus faults, and temperature warnings. Share your exact code when you book — we identify the root cause as part of the remote diagnostic.
We review SolisCloud data, error codes, and settings to identify the exact fault without a site visit.
Installer gone bust, SolisCloud access lost, or monitoring never configured? We recover access and rebuild documentation.
Grid fault investigation, CT clamp correction, DC cable fault location, component inspection.
Download datasheets, installation manuals and warranty documents for Solis hybrid inverters and battery storage systems. Self-hosted and always current.
Solis (made by Ginlong Technologies) produces affordable, reliable string inverters that are well-regarded in the UK residential solar market. The product range includes the S5 and S6 series single-phase inverters and the RHI series hybrid inverters with battery integration. Monitoring is provided by SolisCloud (formerly the Ginlong Monitoring Portal) via a WiFi datalogger. Solis inverters are known for their simple, no-fuss operation — but the monitoring system can be tricky to reconfigure after router changes.
The most common Solis issues we handle: Solis grid voltage fault, SolisCloud offline, Solis not exporting, Solis underperforming, and Solis installer gone bust. Grid voltage faults are disproportionately common with Solis systems in solar-dense streets — this is a grid infrastructure issue, not a fault with the inverter itself. STS provides independent Solis support across the UK — not affiliated with Ginlong Technologies.
STS supports all major inverter and battery brands — not just Solis. If you have a mixed-brand system or are comparing options, visit the brand hub.
Browse all 19 brandsTell us what's happening. We'll review your details and come back with a clear diagnosis path — usually same day.
We use cookies to measure traffic and improve our ads — including sharing limited, hashed details with Meta (Facebook) to measure ad performance. Accept, or decline for essential cookies only. Privacy policy
