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Fault code index · Growatt inverter and battery

Growatt Fault Code Index

Every Growatt error code from the inverter display and ShineServer portal — what it means, the most likely cause, and what to do. Find your code in the index below or use the category sections to browse by system area.

Sourced from Growatt commissioning guides Covers single-phase and three-phase models ShineServer + inverter display codes

Growatt Fault Code Index

Every Growatt error code from the inverter display and ShineServer portal — what it means, the most likely cause, and what to do. Find your code in the index below or use the category sections to browse by system area.
  • Sourced from Growatt commissioning guides
  • Covers single-phase and three-phase models
  • ShineServer + inverter display codes
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5.0
13 Trustpilot reviews
Trustpilot Google

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

I've spoken to Ron a couple of times with issues with my Givenergy installation. Such a friendly knowledge guy very highly recommended. Thank you very much for resolving my issues

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

This company are a rare gem, I had a very unusual problem following a failed firmware upgrade on my GivEnergy kit. I then found out GivEnergy were in administration and had dismissed all their support staff! None of the usual fixes to try and restore my inverter comms would work, and I looked everywhere, forums, GivEnergy youtube support videos - even AI couldn't figure it out. My installer was talking about huge sums for system replacements, and being vague / evasive about if they'd even install replacement GivEnergy inverter. Enter Solar Tech Support, reassuring and knowledgeable from the very start, I've learnt loads about my solar system though the friendly chat while my engineer worked as he diagnosed the problem and figured out a fix procedure that I've not found anywhere else - amazing . If you need solar system repairs - especially if you like me have been left high and dry by GivEnergy, I cannot recommend this company enough. Give them a call.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

I've spoken to Ron a couple of times with issues with my Givenergy installation. Such a friendly knowledge guy very highly recommended. Thank you very much for resolving my issues

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

This company are a rare gem, I had a very unusual problem following a failed firmware upgrade on my GivEnergy kit. I then found out GivEnergy were in administration and had dismissed all their support staff! None of the usual fixes to try and restore my inverter comms would work, and I looked everywhere, forums, GivEnergy youtube support videos - even AI couldn't figure it out. My installer was talking about huge sums for system replacements, and being vague / evasive about if they'd even install replacement GivEnergy inverter. Enter Solar Tech Support, reassuring and knowledgeable from the very start, I've learnt loads about my solar system though the friendly chat while my engineer worked as he diagnosed the problem and figured out a fix procedure that I've not found anywhere else - amazing . If you need solar system repairs - especially if you like me have been left high and dry by GivEnergy, I cannot recommend this company enough. Give them a call.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot
How to find your fault code. Growatt fault codes appear on the inverter LCD display as "Error" or "Fault" code number. They also appear in the ShineServer/ShinePhone portal under Device → History, and in the ShineMaster log. The code format is typically Error XX where XX is a two-digit number. Note the exact error number and whether it is transient or persistent before booking.
Inverter & AC faults

Fault codes generated by the inverter in response to AC supply problems, DC overvoltage from panels, or temperature issues. These typically cause the inverter to stop generating.

Error 01 Grid over-voltage
Grid AC voltage exceeded upper limit. Usually transient. Reconnects automatically when grid normalises. Common on export-dense circuits.
Error 02 Grid under-voltage
Grid AC voltage below lower limit. Check AC isolator and consumer unit. If connections are sound, contact DNO.
Error 03 Grid over-frequency
Grid frequency above upper limit. Transient, reconnects automatically.
Error 05 PV over-voltage
PV string voltage exceeds inverter maximum. Do not touch DC cabling. Requires engineer to check string configuration.
Error 07 Over-temperature
Inverter temperature too high. Check inverter ventilation — minimum 20cm clearance on all sides. Clear any dust from vents. If in direct sun, shade the inverter if possible. If Error 71 (fan fault) is also present, address the fan first.
AFCI arc fault ⚠ Arc fault — newer models
Arc fault detected on DC string — applies to Growatt models with AFCI (Arc Fault Circuit Interrupter) protection. This indicates a dangerous electrical discharge in the DC wiring. Do not touch any DC cabling. Engineer inspection required before restarting. The inverter display may show "Arc-fault" or a specific Error code depending on firmware version.
Insulation / isolation faults

Fault codes related to insulation resistance between the PV string and earth, or between AC wiring and earth. These are safety-critical faults.

Error 04 ⚠ Insulation fault
Insulation resistance between PV string and earth is below minimum. This is the most common Growatt fault code. Do not touch DC cabling until an engineer has confirmed the fault location. Common causes: water ingress at MC4 connectors, damaged string cable, faulty panel junction box. Share your exact code and system details when booking — we identify the fault source from monitoring data.
Error 04 (AC side) ⚠ AC isolation fault
AC wiring insulation fault. Do not touch any AC wiring. Isolate at consumer unit. Requires a qualified engineer.
Grid faults

Fault codes related to grid supply, grid voltage, and grid current issues.

Error 08 AC over-current
Output current exceeds rated maximum. May indicate a downstream wiring fault. Isolate inverter and check AC connections.
Error 10 No grid
Grid supply absent. Check AC isolator and consumer unit breakers. If the grid is present, the issue is with the AC connections or the inverter's grid detection circuit.
Error 21 Residual current fault
Residual current detected at inverter output. Do not touch AC wiring. Isolate at consumer unit. Requires a qualified engineer to check AC wiring integrity.
Grid under-frequency / Low frequency Under-frequency disconnect
Grid frequency dropped below the lower limit (typically below 47Hz in the UK). The inverter disconnects automatically and reconnects when frequency recovers. Shown as "Low frequency" or "Under frequency" on the display on most Growatt string models rather than a specific Error number. Transient events are normal; frequent occurrences should be reported to the DNO.
Battery / BMS faults

Fault codes from the battery management system — communication failures, voltage protection events, and thermal management.

Error 61 Battery comms fault
Inverter has lost communication with the battery BMS over the RS485 or CAN bus. Check communication cable between inverter and battery. Power cycle the system. If persistent, check battery firmware version matches inverter expectations.
Error 62 Battery over-voltage
Battery voltage exceeded safe maximum. Do not attempt to charge. Requires engineer to check battery management system.
Error 63 Battery under-voltage
Battery voltage below safe minimum. Battery protection has activated. Allow a slow charge cycle. Contact Growatt support if battery does not recover.
Error 71 Fan fault
Cooling fan has failed or is obstructed. Check vent area for blockages. May require fan replacement.
Communication faults

Faults related to data communication between inverter and monitoring portal, and internal processor communication.

ARM-DSP comms fail Internal processor fault
Internal communication fault between ARM processor and DSP processor. Often cleared by a full power cycle (including DC isolator). If persistent, the ARM or DSP board may need replacement.
No data — portal offline Monitoring connectivity
ShineServer has not received data from the ShineWifi or ShineLAN logger. Check logger LED status. A flashing green LED indicates WiFi connection issues. Reconfigure WiFi via ShinePhone if needed.
Code not listed here?

Growatt releases firmware updates that may introduce new fault codes. If your code isn't listed, share the exact code from your inverter display or ShineServer and we'll identify it.

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FAQ

Growatt fault code questions

Growatt fault codes appear on the inverter's LCD screen as Error XX (e.g. Error 04). They are also logged in the ShineServer portal under Device > History, and in ShinePhone under the error history tab. Note the exact error number — including whether it is a warning or error — before contacting support or searching this index.
Error 04 is an insulation fault — the resistance between the PV string and earth has dropped below a safe threshold. This can indicate water ingress at MC4 connectors, damaged string cabling, or a faulty panel junction box. You should not touch any DC cabling. The system should be isolated at the consumer unit until an engineer has identified the fault source. Do not restart the system repeatedly — this does not fix the fault and may worsen the underlying issue.
The ARM-DSP fault indicates the inverter's two internal processors have lost communication. This is often caused by a firmware corruption or a transient startup fault — a full power cycle (turning off AC isolator, DC string isolator, and waiting 60 seconds before restarting) clears it in many cases. If it returns persistently, the inverter control board may need replacement or a firmware reflash by a qualified engineer.
Yes, the ShinePhone app and Growatt server log fault history that STS engineers can review. Free remote diagnosis — no fix, no fee, and many firmware-related faults can be resolved without a site visit.
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Got a fault code and need it diagnosed?

Share the exact fault code from your inverter display or ShineServer, what the system is doing, and when it started. We'll identify the cause and tell you whether it needs a remote settings fix or a site visit.

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