Excellent response to diagnose a problem on our SolarEdge installation. Kept us informed at every step. Diagnosis quickly completed and solution implemented.
Les Bennett · May 2026
Enphase · Setup guides
Enphase setup & how-to guides
STS engineers diagnose and repair this fault on Enphase systems. Click any topic below for a full step-by-step guide, or book a free remote diagnostic and we'll walk you through it.
- Free remote diagnostic
- No fix, no fee
- All major brands supported
Excellent service from Solar Tech Support. Extremely quick to respond, easy to deal with and clearly very talented engineers. They were persistent throughout a complex GivEnergy battery issue and resolved everything completely. Highly knowledgeable, professional and reassuring support from start to finish. Highly recommended.
David Harris · May 2026
I work for a Solar Company and had a customer with a GivEnergy system that we are not versed in. Ron took the time to explain the issues my customer was having and between us managed to rectify the issues. 10 Stars ... Thanks again STS
Craig Daly · Jun 2026 Google
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.
Steve M · Jun 2026 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
Our SolarEdge PV system with LG batteries had its first hiccup after 8 years of hard work. The Inverter failed. Fortunately I found Solar-Tech-Support who diagnosed the problem very quickly, ordered a replacement unit and fitted it shortly after we received the unit from SolarEdge. Very thorough and professional approach. Thank you, a solid 5 star recommendation.
Les Bennett · Jun 2026 Google
What needs setting up on Enphase kit
Almost all the setup work on an Enphase system happens at the Envoy, also called the IQ Gateway. The microinverters behind each panel look after themselves, but the Envoy is the box that pushes data to the Enlighten portal, and it is the one thing that needs reconfiguring when anything changes on your home network. The most common job by far is reconnecting the Envoy to a new router after a broadband upgrade, an ISP switch or a WiFi password change.
The catch is that the Envoy cannot reconnect on its own. It has no screen and no way to prompt you for a new password, so it keeps trying the old network indefinitely until someone reconfigures it through the Enphase Installer Toolkit app and the Envoy's AP mode. Crucially, the solar system carries on generating the whole time the Envoy is offline. Only the data stream to Enlighten stops, which is why so many people only notice weeks later. Most Envoy models talk 2.4GHz WiFi only, so 5GHz-preferred phones and mesh routers with band steering catch people out, and WPA3 can stop the Envoy accepting an otherwise correct password.
As independent engineers we work through Enphase setup remotely first, reading the Envoy LEDs and Enlighten status with you before anyone climbs into a loft. The remote diagnostic is free and it is no fix, no fee. If we can sort it remotely the fix is from £75; if a site visit is genuinely needed, that is from £245 and quoted before anyone travels.
Setup guides
1 setup guides we cover
Each topic links through to an engineer-led step-by-step guide.
Enphase setup questions answered
Download the free Enphase Installer Toolkit app and log in with an Enphase account. Press the AP mode button on the Envoy, a small recessed button on the side or bottom, and hold it for about a second so it broadcasts its own network. On your phone, connect to the WiFi network named ENVOY_ followed by the serial number; your phone will warn there is no internet, which is expected. Open the app, go to network settings, pick your new home WiFi and enter the password carefully, as a mistyped password is the most common cause of failure. The Envoy's network LED turns solid green within a few minutes once it connects, and Enlighten resumes uploading. Our full step-by-step walks through all six steps.
Two things catch most people out. First, most Envoy models only support 2.4GHz, so if your router broadcasts separate bands, select the 2.4GHz network; if it combines both under one name, the Envoy should pick 2.4GHz automatically. Second, if the password is rejected even though it is correct, the router may be on WPA3, which the Envoy may not support, so switch it to WPA2 or WPA2/WPA3 mixed mode. Repeated drops usually mean the WiFi signal is simply too weak where the Envoy is fitted, often a garage, loft or cupboard. The permanent fix is ethernet: the Envoy has an ethernet port and prioritises a wired connection over WiFi, and a powerline adapter at around £30 to 40 can bridge the distance if the router is far away.
The remote diagnostic is free, no fix, no fee. Tell us what changed, a router swap, ISP switch or new password, and whether you have tried the Installer Toolkit app, and we will work out whether it is a 2.4GHz band issue, a WPA3 setting, weak signal or a locked Enlighten account. If we can guide you through the setup or reconnection remotely, that is from £75 and you only pay if it works. Where WiFi is unreliable and ethernet needs running, or access to the Envoy is awkward, an on-site visit is from £245 and always quoted before anyone travels. We can also help recover or transfer Enlighten account access if your installer set the system up under their own login.
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