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Brand support · SolarEdge

SolarEdge Inverter Support — Optimisers, Arc Faults & Monitoring

Optimiser offline, arc fault trip, no production, monitoring portal dark — we diagnose SolarEdge systems at the engineering level. Remote-first using SetApp data and monitoring portal history. Independent from SolarEdge and from your installer.
  • All HD-Wave and three-phase units supported
  • Free remote-first diagnostic · no fix, no fee
  • Not affiliated with SolarEdge Technologies
Not sure what your SolarEdge error means?

Optimiser offline, arc fault light, no production — we diagnose SolarEdge systems remotely in a single session.

Diagnostic from £75Learn about our Solar Health Plan

Safety: If the arc fault light is active, do not reset more than once — isolate at the AC and DC switches and call us first.

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
SolarEdge Faults

Common SolarEdge problems we diagnose

Every fault below has a proven diagnostic path. Click through for the specific page or book a diagnostic if you're unsure.

Fault Codes

SolarEdge error codes explained

SolarEdge displays fault codes in the monitoring portal and on the SetApp. Common error prefixes: 'G' (grid faults), 'OP' (optimiser communication), 'AFCI' (arc fault detection), 'AC' (AC side faults). Share your exact code when you book — we identify the root cause using monitoring portal data and SetApp logs.

Fault code categories
·Grid faults — G prefix, voltage & frequency
·Optimiser communication failures — OP prefix
·Arc fault events — AFCI detection
·AC isolation / grid disconnect
Services

What we do for SolarEdge owners

Remote SolarEdge Diagnostic

We review SetApp data, monitoring portal history, and error codes to identify the exact fault remotely.

Monitoring portal review
SetApp data analysis
Optimiser-level fault isolation
Book remote diagnostic

SolarEdge Monitoring Recovery

Installer gone bust or locked out of the SolarEdge portal? We recover access and transfer monitoring account ownership.

Portal ownership transfer
SetApp commissioning support
API access recovery
Monitoring setup guide

WiFi Reconnection

SolarEdge inverter lost WiFi after a router change or password update? Reconnect via SetApp or SolarEdge Go and restore monitoring.

SetApp & SolarEdge Go walkthrough
2.4 GHz network requirements
Portal verification steps
WiFi reconnection guide

Export Limit Configuration

G99 export limit curtailing too much? Dynamic vs fixed limiting, CT clamp orientation, meter communication faults.

G99 compliance configuration
Dynamic vs fixed limiting
CT clamp & meter diagnostics
Export limit guide

On-Site SolarEdge Repair

Optimiser replacement, DC cable fault location, arc fault investigation, CT clamp correction.

Evidence-led targeted checks
Safety-focused report
Repair or replacement path
Discuss visit
Documents

SolarEdge datasheets, manuals & warranty PDFs

Download datasheets, installation manuals, warranty documents and monitoring guides for SolarEdge HD-Wave inverters, optimisers and StorEdge batteries. Self-hosted and always current.

📄Product datasheets & specifications
📘Installation & commissioning manuals
🛡Warranty terms & coverage documents
📱App & software setup guides
🔌Wiring diagrams
Fault Codes

SolarEdge fault code index

Seeing an error code on your SolarEdge inverter? Our fault code index explains what each code means, common causes, and safe next steps.

·Optimiser communication & pairing errors
·Arc fault detection & safety shutdown
·Grid fault codes — voltage, frequency
·Monitoring & production issues

About SolarEdge systems — what you need to know

SolarEdge is the UK's largest solar inverter brand by installed capacity. Unlike conventional string inverters, SolarEdge pairs each panel with a power optimiser — a DC-DC converter that maximises output from each module independently. The inverter then operates at a fixed input voltage (the SolarEdge 'HD-Wave' principle), which improves efficiency and makes the system safer to work on (DC strings run at a fixed 1V when the inverter is off). The monitoring portal provides panel-level output data — a significant advantage for fault diagnosis.

The most searched SolarEdge issues we see are: SolarEdge not producing, SolarEdge arc fault, SolarEdge optimiser not communicating, SolarEdge monitoring offline, and SolarEdge installer gone bust. SolarEdge systems are commissioned using SetApp — a mobile tool that replaces the traditional display. If your installer didn't complete commissioning or you've lost access, we recover and verify the configuration. STS provides independent SolarEdge support across the UK — not affiliated with SolarEdge Technologies Inc.

We also support

STS supports all major inverter and battery brands — not just SolarEdge. If you have a mixed-brand system or are comparing options, visit the brand hub.

Browse all 19 brands
FAQ

SolarEdge questions answered

The most common causes are a tripped AC or DC isolator, a power optimiser not communicating, an arc fault detection trip, or grid disconnection. We identify the specific fault path remotely using monitoring data and error logs. Check the inverter display for error codes and book a diagnostic if the cause isn't clear.
Arc Fault Circuit Interrupter (AFCI) detection is a SolarEdge safety feature. A trip means the inverter detected abnormal current patterns on the DC string — typically a damaged cable, poor connector, or optimiser fault. Do not reset repeatedly without identifying the cause.
An N/A optimiser in the SolarEdge monitoring portal usually means the optimiser has failed, lost DC power, or the string has an open-circuit fault. Each optimiser is a separate component — one failure does not affect the others but reduces overall output. We identify the specific unit and cause before recommending replacement.
Check the inverter display for an error code. If the inverter is running but the portal shows no data, the communication module (ZigBee or ethernet) may have lost connection. If the inverter is offline too, check AC and DC isolators are closed. We can reconnect the monitoring device remotely in most cases.
Book

Ready to fix your SolarEdge system?

Tell us the fault code or describe what you're seeing — monitoring portal dark, arc fault light, optimiser N/A. We'll identify the cause and give you a clear path.

  • Not affiliated with SolarEdge Technologies
  • Free remote diagnostic · no fix, no fee
  • On-site visits available across Yorkshire

By submitting you agree to be contacted about your diagnostic request. We don't share your data with 3rd parties.

Call 07944 877 329 Book free diagnostic