One panel offline or the whole Envoy down — Enphase systems are diagnosable at panel level. We identify exact microinverter failures remotely, but WiFi isn't remote work: if the Envoy has dropped off your WiFi, follow our free Envoy WiFi setup guide, and if it still won't reconnect, we can set it up on site, from £195.
Book free Enphase diagnosticSafety: If you can see a microinverter or AC cable that looks physically damaged, do not touch it — isolate at the consumer unit.
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.
⭐⭐⭐⭐⭐ 5-Star Review – Solar Tech Support Installing solar panels is only the first step! To get the best possible performance and maximise your investment, you need to make sure your system is configured correctly and all settings are properly optimised. **Solar Tech Support did exactly that for me, and I couldn't be happier with their professional service!** Their knowledge, expertise, and attention to detail helped me optimise my solar system to get the most out of it. If you already have solar panels and battery storage, I highly recommend contacting Solar Tech Support for professional advice, system optimisation, and technical support. Don't just install solar panels – make sure you're getting the maximum benefit from your investment! ⭐⭐⭐⭐⭐ Highly recommended! Thank you, Solar Tech Support, for your excellent service!
An amazing experience and service from Ronald - totally 100% recommend. All remotely sorted with no need to wait around for someone to pop in and sort. I was a little nervous about doing this but was really easy and he talks you through the steps. Just such relief and we are back up and running again.
My Givenergy system went offline, so I lost control of it. Ron from STS and Craig from Norfolk Solar were most helpful in diagnosing the problem by phone. Full marks for their patience and ability.
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.
Solar Tech have been everything you expect and want from a support organisation. Easy to contact, quick to respond and their expertise and knowledge about GivEnergy Systems was amazing. All the work was done remotely, and they guided me through the recovery of a failed system, which ended up to be down to a physically damaged USB key installed in production that was corrupted and stopping one battery from working, locking the whole system. All fixed and the system is working again. Massive thanks to the team and their help. Will be my goto for any future issues with our GivEnergy system. The pictures shows the condition of the USB as installed..
Every fault below has a proven diagnostic path. Click through for the specific page or book a diagnostic if you're unsure.
A panel showing as grey or N/A in Enlighten typically means the microinverter for that panel has stopped producing. It could be a failed unit, a loose AC connector, or the microinverter has tripped its own protection. Enlighten's panel-level view makes the exact location clear.
See diagnostic guide →If all panels show as offline in Enlighten, the Envoy gateway has lost contact with the microinverters or the AC supply to the array has been interrupted. Check the Envoy indicator lights and verify the AC breaker for the solar circuit is closed.
See diagnostic guide →Unlike string inverters, a failed Enphase microinverter affects only one panel. The Enlighten portal shows the affected panel clearly. We identify whether the unit needs replacement or if an AC wiring issue is the cause.
See diagnostic guide →The Enphase Enlighten portal shows no recent data. The Envoy (IQ Gateway) has lost its internet connection, most often after a router change, a WiFi password update or an Envoy hardware fault. The microinverters usually keep running while the Envoy is offline, so check your generation meter.
See diagnostic guide →After a router upgrade or ISP change, the Envoy needs reconnecting to the new network. This is done via the Installer Toolkit app or the local Envoy web interface at envoy.local. If it still won't connect, we set it up on site, from £195: we connect it to your WiFi, set up your router, including a separate 2.4 GHz network if it needs one, and check it's reporting.
See setup guide →Enphase Enlighten provides panel-by-panel performance history. If overall generation is below expected, we compare individual panel outputs to identify which microinverter or microinverters are performing at reduced capacity.
See diagnostic guide →Enphase IQ7 and IQ8 microinverters carry a 25-year warranty. If a unit has failed and is within warranty, we prepare the diagnostic evidence needed to support a claim with Enphase Energy Ltd. Your installer going bust does not affect the warranty.
See diagnostic guide →Enphase IQ8 series microinverters support 'Sunlight Backup' mode — the ability to power essential loads directly from solar panels during a grid outage without a battery. This requires specific wiring and configuration that many installers haven't completed correctly.
See diagnostic guide →Enphase systems report status at the panel level rather than showing single error codes. Common Enlighten statuses: grey panel (microinverter not communicating), yellow triangle (reduced production), red (microinverter error state). Share your Enlighten screenshot when you book — we identify the exact microinverter fault from the panel-level data.
We review Enlighten panel data and microinverter output history to identify the exact fault without a site visit.
Installer gone bust, Enlighten access lost, or monitoring never set up? We recover Envoy access and transfer Enlighten account ownership.
Full panel-level performance audit — compare actual vs expected output for every microinverter, identify degraded units, verify AC wiring integrity.
Download datasheets, installation manuals and warranty documents for Enphase microinverters and IQ battery systems. Self-hosted and always current.
Seeing an error code on your Enphase system? Our fault code index explains what each code means, common causes, and safe next steps.
Enphase Energy makes microinverter systems — fundamentally different from the string inverters used by GivEnergy, Growatt, SolarEdge and others. Instead of one central inverter handling power from all panels, each Enphase panel has its own IQ microinverter (currently IQ7 or IQ8 series) mounted directly behind it. The microinverter converts DC power to AC at panel level. This means each panel operates independently — shading on one panel doesn't affect the others, and a single microinverter failure doesn't stop the rest of the array.
Monitoring is provided by Enphase Enlighten — a cloud-based portal that shows production at the individual panel level. The local Envoy (or IQ Gateway) collects data from all microinverters via powerline communication and pushes it to Enlighten. The most common searches we handle for Enphase: panel not showing in Enlighten, Enphase Envoy offline, Enphase microinverter failed, and Enphase installer gone bust. STS provides independent Enphase support across the UK — not affiliated with Enphase Energy Inc.
STS supports all major inverter and battery brands — not just Enphase. If you have a mixed-brand system or are comparing options, visit the brand hub.
Browse all brandsIndependent Enphase problems support across the UK — 2 faults STS engineers diagnose and repair. Free remote diagnostic, no fix no fee.
See Enphase common problems & faultsSolar monitoring portal showing offline? Tell a local WiFi fault from a dongle hardware failure, a firmware issue or a cloud-side outage, and fix it.
See Envoy offlineFree, independent step-by-step guide to reconnecting an Enphase Envoy to your WiFi. If it still won't connect, we can set it up on site, from £195.
See Enphase setup & how-to guidesFull index of Enphase microinverter panel status codes — what each code means, causes, and where to find them in Enlighten and the system map.
See panel status codesDownload Enphase datasheets, installation manuals, warranty PDFs, app guides and wiring diagrams. IQ microinverters, Envoy gateway, and Encharge batteries.
See documents & downloadsTell us which panel is offline or describe what Enlighten shows. We'll identify the fault at microinverter level and give you a clear path to fix it.
Due to unprecedented demand we’re currently only carrying out on-site work in Yorkshire, and replies are taking up to 7 days. Remote diagnostics continue for the whole UK as normal.
Every message is read and answered, so please don’t send it twice; that only slows the queue.
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