Error 04, Error 117, ShinePhone offline — we diagnose Growatt systems remotely in a single session.
Book your free remote diagnosticSee the Solar Health PlanSafety: If you have Error 04 (insulation fault), do not attempt to reset the system without identifying the cause — isolate at the DC switch.
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.
The inverter has detected that DC isolation has dropped below 1MΩ. This is a genuine safety event — not a nuisance trip. Common causes: cracked panel backsheet, damaged DC cable, water in a junction box or connector. Requires on-site investigation.
See Error 04 guide →AC voltage at the grid connection has exceeded the G98/G99 upper limit. Common in solar-dense streets. Temporary self-clearing, or requires export limit configuration, DNO notification, or voltage regulation settings.
See Error 117 guide →DC insulation resistance has dropped below 1 megaohm. The inverter shuts down as a safety measure. Causes include MC4 water ingress, UV-damaged cables, cracked junction boxes, and rodent damage. Requires IR testing to locate the fault.
See isolation fault guide →Inverter powered but generating nothing. Could be a DC string fault, isolator not closed, or protection trip not yet cleared. Check the ShinePhone app for error codes and the ShineTools log.
See diagnostic guide →App shows no data or inverter appears disconnected. Could be the WiFi logger (ShineWiFi or ShineLink) offline, a cloud-side ShineServer outage, or the logger hardware failed. The inverter may still be generating.
See diagnostic guide →The ShineWiFi stick or ShineLink module requires 2.4GHz WiFi. After a router change, it needs reconfiguring via the ShineTools app or web interface. We guide you through the reconnection process.
See diagnostic guide →ShinePhone shows power output below expectations. Could be a string performing at reduced capacity, soiled panels, or a configuration error. We review ShineServer historical data to identify the fault pattern.
See diagnostic guide →New homeowner needing to register the system, or taking over a system registered to an installer's account? Covers first-time setup, orphaned account transfers, and what to send to Growatt UK to reclaim access.
See setup guide →Growatt error codes appear on the inverter LED display and in the ShinePhone app. Common codes: Error 04 (insulation failure), Error 117 (grid over-voltage), Error 107 (grid frequency out of range), Error 025 (DC bus voltage high). Share your exact code when you book — we identify the root cause as part of the remote diagnostic.
We review ShineServer data, inverter settings, and fault history to identify the exact fault remotely.
Installer gone bust, ShineServer access lost, or monitoring never set up correctly? We recover access and rebuild documentation.
Isolation fault investigation, DC cable fault location, CT clamp correction, component replacement.
Download datasheets, installation manuals and warranty documents for Growatt MIN, MID, MOD and SPH hybrid inverters. Self-hosted and always current.
Growatt is one of the UK's most widely installed inverter brands — particularly popular with budget-conscious installers. The MIC, MIN, and MOD series cover residential string inverter installations. The SPH and SPA series are hybrid inverters with battery integration capability. All Growatt inverters display fault codes numerically on the front LED panel and report them to the ShineServer cloud via the ShineWiFi or ShineLink logger. Growatt's ShinePhone app provides remote monitoring and fault history access.
The most common Growatt searches we handle are: Growatt Error 04, Growatt Error 117, Growatt ShinePhone offline, Growatt not producing, and Growatt isolation fault. Error 04 is particularly common in older installations where panel connectors or cable insulation have degraded — it is a genuine safety event, not a nuisance fault. STS provides independent Growatt support across the UK — not affiliated with Growatt Technology Co. Ltd.
STS supports all major inverter and battery brands — not just Growatt. 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.
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