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Fault code index · SolarEdge inverter & power optimisers

SolarEdge Fault Code Index

Every SolarEdge fault code from SetApp and the monitoring 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 SolarEdge commissioning guides Covers inverters and power optimisers SetApp + monitoring portal codes

SolarEdge Fault Code Index

Every SolarEdge fault code from SetApp and the monitoring 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 SolarEdge commissioning guides
  • Covers inverters and power optimisers
  • SetApp + monitoring portal 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. Log into monitoring.solaredge.com → select your site → Events tab for historical faults. For live status and detailed fault codes, use the SolarEdge SetApp (requires Bluetooth proximity to inverter). In SetApp go to Status → Troubleshooting to see active fault codes. Note the exact code number and inverter serial number when booking. Note on code formats: Older SolarEdge inverters use numeric codes (1001, 1010 etc.). Newer residential inverters introduced from 2024 onwards use hexadecimal format codes (e.g. 2x0A, 2x11, 2x28, 3x11) — both formats are listed in this index.
Inverter & AC faults

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

1001 Grid fault
Inverter has disconnected from grid. Check AC isolator and consumer unit breakers. Reconnects automatically when grid conditions return to normal.
1003 Grid voltage high
Grid voltage exceeded upper threshold (typically 253V). Usually grid-side — contact DNO if recurring. Common on high-density solar streets.
1004 Grid voltage low
Grid voltage below lower threshold. Check AC connections and contact DNO if persistent.
1006 Grid frequency high
Grid frequency outside acceptable range. Inverter disconnected as required by G98/G99 protection. Usually transient — reconnects automatically.
1007 Grid frequency low
As above for under-frequency. Reconnects automatically when frequency stabilises.
1010 / 3x11 — AFCI arc fault ⚠ Arc fault
Arc fault detected on DC string. Code 1010 appears on older inverters; code 3x11 on newer residential models. Do not touch DC cabling. Requires a qualified engineer to inspect all DC connections, MC4 connectors, and string wiring before any restart.
2x11 — Over temperature Newer residential inverters
Inverter heatsink temperature too high — appears on newer residential models using the hexadecimal code format. Check ventilation clearances, ensure the inverter is not in direct sunlight or enclosed, and clear dust from heatsink vents. If conditions are within specification and the fault persists, the internal fan may require attention.
Power optimiser faults

Status codes from individual power optimisers — communication failures, under-voltage events, and pairing issues. One faulty optimiser does not stop the whole system, but reduces generation on that panel.

S_OK Status normal
Optimiser is communicating correctly with the inverter. Status shown in SetApp and monitoring portal. No action required.
N/A · Not communicating Optimiser offline
Optimiser is not communicating with the inverter. Check SetApp pairing status. Power cycle the affected string (turn string isolator off, wait 2 minutes, back on). If the optimiser still shows N/A, it may need re-pairing or replacement.
Under voltage Input voltage low
Optimiser input voltage too low. Usually caused by shading, soiling, or panel damage. Check panel with voltmeter — if voltage is correct at the panel, the optimiser itself may be faulty.
Open circuit No panel connection
No panel connected or panel connection open. Check MC4 connectors at the panel and optimiser. Do not touch without isolating the string first.
Temporary inhibit Startup inhibit
Inverter is temporarily inhibiting the optimiser (e.g. during safety scan at startup). Wait for the inverter to complete its startup sequence — this usually clears within 5 minutes of generation starting.
Grid / G98/G99

Grid connection codes and events triggered by G98/G99 grid code settings. These are protection functions, not faults — they prevent the inverter from generating during grid faults.

Grid connection failed Connection error
Inverter failed to connect to grid after a disconnect event. Check AC isolator is on. If grid is present and isolator is on, the inverter may be in a wait state — give it 5 minutes to reconnect.
Reactive power limitation DNO export limit
Inverter limiting generation due to power factor requirements set by the DNO. May be configured as part of G99 export licence — check installer's commissioning report.
Export limitation active Export limit configured
Export limit configured on the inverter is constraining generation. Expected behaviour if an export meter is fitted. Contact installer if unexpected.
2x28 — Grid is down Newer residential models
No AC grid detected — code used on newer residential inverters with hexadecimal format. Check AC isolator and consumer unit. Equivalent to the "Grid connection failed" event on older models. Reconnects automatically when grid is restored.
2x1F / 2x20 / 2x21 / 2x29 — Grid voltage limit Voltage above or below country limit
Grid voltage has exceeded or fallen below the country-specific limit configured in the inverter. These codes appear on newer residential models and cover both overvoltage and undervoltage events. Transient events reconnect automatically; recurring faults should be reported to the DNO.
Communication faults

Faults related to data communication between inverter and monitoring portal, and between the inverter and other system components.

Communication error with monitoring Portal connectivity
Inverter is not uploading data to monitoring.solaredge.com. Check LAN cable or WiFi dongle LED (should be solid green). Check router hasn't changed IP range. SetApp will still show live data even when monitoring is offline.
Inverter not paired SetApp pairing lost
SetApp cannot communicate with the inverter. Ensure Bluetooth is enabled on your phone. Stand within 3m of the inverter. If still unable to pair, try clearing SetApp data and restarting the pairing process.
RS485 communication error Bus communication fault
Communication fault on the RS485 bus (typically inverter to energy meter). Check RS485 cable polarity and connections at both ends. Ensure termination jumper is set correctly if multiple devices on bus.
Solar / PV faults

Faults related to DC string voltage, power, and insulation — the PV side of the system.

PV voltage too high DC overvoltage
String voltage exceeds 600V DC maximum. Do not touch DC cabling. Requires a qualified engineer to check string configuration — may indicate panels wired incorrectly in series.
Minimum string power Low power threshold
String power below minimum threshold for generation. Usually transient at dawn/dusk. If occurring mid-day, check for shading or soiling on panels.
PV isolation fault / 2x19 ⚠ PV not isolated from ground
PV string is not properly isolated from ground — insulation resistance below safe threshold. Code 2x19 is used on newer residential models. Do not touch DC cabling. Requires an engineer to check string cabling, MC4 connectors, and panel junction boxes for damage or water ingress.
2x0A — Ground fault ⚠ Ground fault — newer models
Ground fault detected — insufficient insulation between DC conductors and earth. Appears on newer residential inverters. Closely related to 2x19 (PV isolation); both indicate a DC-side safety fault. Do not touch DC cabling. Engineer inspection and insulation resistance testing required before any restart.
2x0F — DC overvoltage Newer residential models
DC string voltage exceeded the inverter maximum — appears on newer residential models. Same response as "PV voltage too high" on older models. Do not touch DC cabling. Requires an engineer to check string configuration.
Code not listed here?

SolarEdge releases updates that may introduce new fault codes. If your code isn't listed, share the exact code from your event log and we'll identify it. SolarEdge also maintains fault code documentation on their support portal.

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FAQ

SolarEdge fault code questions

SolarEdge fault codes appear in two places — the monitoring portal Events tab at monitoring.solaredge.com, and in SetApp under Status > Troubleshooting. SetApp gives the most detail and works via Bluetooth without an internet connection. Note the exact fault code number and the inverter serial number before contacting support.
An optimiser showing N/A means it is not communicating with the inverter. This is usually caused by the optimiser losing pairing after a power cycle, a shading event causing under-voltage, or a hardware fault in the optimiser. Open SetApp > Status > Optimisers to see which unit is affected and its last reported voltage. If voltage is zero, the optimiser or the panel connection may be the fault.
Many SolarEdge fault codes clear automatically when the fault condition resolves — grid voltage events are an example. For persistent codes, a power cycle (AC isolator off, wait 30 seconds, back on) is the first step. Do not repeatedly cycle power if the same code returns — that indicates a persistent fault that needs diagnosis. AFCI arc faults and PV isolation faults should not be cleared without a qualified engineer checking DC cabling first.
Recurring fault codes often indicate a hardware issue rather than a software glitch. If a reset temporarily clears the code but it returns, STS recommends a free remote diagnostic to check components like optimisers, DC cabling, and the inverter itself.
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