Most solar faults are diagnosed remotely in a single session. Tell us what you're seeing and we'll work it out.
Book your free remote diagnosticSafety: do not open inverter or battery enclosures. If you smell burning or see arcing, isolate at the consumer unit and call 999.
I had a red status light on my GivEnergy battery pack and Ron at Solar Tech Support was a great help resolving the problem. He was able to do a remote diagnosis of the invertor BMS firmware and hardware and gave very quick practical and professional support. Thanks Rob
I reached on behalf of a friend, who had lost control of their battery following a storm. A couple giv energy “dealers” had attempted and said different fixes. None worked. Solar tech support solved it remotely on the first attempt almost instantly. Genuinely a 10/10 service.
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
Ron very quickly diagnosed what was wrong with my GivEnergy system. Unfortunately the kit has died after only 3.5 years of use-which is quite sad and timing couldn’t be worse with GivEnergy gone bust. Ron gave me advise on how to handle this with my installer. I’m hoping they’ll be forthcoming, but if they aren’t i now have a good idea how to deal with that. Thanks a lot Ron!
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
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.
Every fault below has a proven diagnostic path. Click through for the specific page or book a diagnostic if you're unsure.
Charge windows look correct but battery stays empty. Octopus Intelligent, Agile, and Go tariff configuration errors. CT clamp misread causing the inverter to think demand is already met.
See diagnostic guide →Inverter loses communication with battery over the CAN bus. Firmware mismatch, termination issues, cable faults, or BMS lock state after a protection event.
See diagnostic guide →Flash patterns on the GivEnergy battery indicate different fault states — BMS protection, over-temperature, cell imbalance, or communication loss. Do not open the unit.
See diagnostic guide →Battery shows full but house uses grid power. Paused battery, reserve level too high, Export First mode, or discharge power limit set to zero.
See diagnostic guide →Charge schedule or system mode keeps reverting. Usually caused by an external API, energy provider integration, or GivBack programme controlling your inverter.
See diagnostic guide →Settings greyed out or reverting because your energy provider has control via API. How to identify, understand, and remove the lockout safely.
See removal guide →Battery stops charging below 0°C, capacity drops in cold weather. Temperature thresholds, winter schedule optimisation, and when it's normal vs a fault.
See cold weather guide →Portal shows grid import despite full battery. Normal grid blips from inverter lag, configuration issues causing sustained grid usage, and when to investigate.
See grid usage guide →GivEnergy EV charger offline, fault codes, not charging, or charging slowly. LED status guide, fault codes E001–E0026, configuration modes, and network connectivity fixes.
See diagnostic guide →Blank display, no startup, won't restart after a power cut. Isolator checks, deep discharge recovery, startup sequence, and fault codes that prevent startup.
See diagnostic guide →Zero solar output or lower than expected. Export limit set to 0W, DC isolator off, grid overvoltage curtailment, standby mode, or MPPT fault. Hybrid, AIO and AIO 2 covered.
See diagnostic guide →Solar generating but battery stays flat. Export limit blocks, CT clamp direction errors, AC-coupled PV inverter faults, reserve level set too high, or battery at 100%.
See diagnostic guide →Inverter repeatedly clicks and won't stay running. Relay cycling caused by AC startup conditions, grid instability, low SoC, or internal relay failure. Diagnosis and escalation path.
See diagnostic guide →Battery percentage drops suddenly, jumps in steps, or sticks at a fixed value. BMS firmware versions 3007–3022 explained, calibration cycles, and firmware update path.
See diagnostic guide →App or givenergy.cloud shows no data. Could be local WiFi loss, a WiFi dongle hardware fault, a cloud-side outage, or a firmware update that broke the cloud connection.
See diagnostic guide →New router, changed password, or first-time setup. GivEnergy loggers require 2.4GHz — many problems stem from 5GHz-only or band-steering routers.
See setup guide →GivTCP, givenergy.cloud, Home Assistant integration, or API access configuration. We set up monitoring correctly or recover a broken configuration.
See setup guide →Complete walkthrough of the GivEnergy app — dashboard, schedules, tariff setup, smart features, notifications, and troubleshooting when data stops updating.
See app guide →Correct shutdown and restart sequence for AIO and Hybrid systems. Resolves communication faults, frozen displays, and post-firmware glitches.
See restart guide →Battery-only restart for Hybrid Gen 2/3 and AIO systems. Clears BMS faults and stuck SoC readings without a full system power-down.
See battery restart →Correct inaccurate SoC readings with soft or full portal calibration. When two batteries show different percentages or charge stops too early.
See calibration guide →Dashboard navigation, charge schedules, system modes, device management, and what to do when monitoring data stops appearing.
See portal guide →AECC multi-connect dongle and HF21 T27 chipset configuration. First-time WiFi setup, firmware update, and resolving persistent connection problems.
See dongle guide →How to update GivEnergy inverter and battery firmware safely via the portal. What to do if the update stalls after an hour, and settings to check afterwards.
See firmware guide →2.4GHz band separation, WPA2 security, DHCP, and ISP-specific router settings for BT, Sky, Virgin, and EE. Essential when the dongle won't connect.
See router guide →Update HF21/HFA21 dongle chipset to T27. Fixes persistent connection drops on modern routers. 7-step process via http://10.10.100.254, upload order matters.
See firmware guide →Setup guide for AIO 2, Gateway 2 and Gen 4. WiFi via STA Settings at https://10.10.100.254/web/info, default admin/123456, AP hotspot security, and factory reset locations.
See AECC guide →Use the GivEnergy app Home option to monitor your system on local WiFi when the portal is offline. Works without internet access, setup via app settings.
See local monitoring guide →Battery isolator positions, LED colour guide, 0°C temperature threshold, SoC checks, and DC/AC restart procedure. First checks before calling support.
See hardware guide →Portal diagnostics, resetting charge/discharge schedules, pausing battery via Remote Control, and reading event log for fault codes. Software-side checks before escalating.
See software guide →Inverted readings, backwards battery behaviour. Most-missed GivEnergy installation error.
Guide →DNO cap not applied, wrong limit, or limit resetting after firmware update.
Guide →House goes dark in a power cut despite having a battery. EPS disabled, wiring issue, or low SoC threshold.
Guide →System behaved differently after update — schedules broken, monitoring stopped, new fault codes appeared.
Guide →The commercial catch-all: administration impact on warranties and support, design limits in the manuals, reported faults, and independent O&M.
Timed Charge, Timed Discharge, Timed Export — the midnight rule, tariff-specific windows, and common scheduling mistakes.
Guide →Octopus Go, Agile, Intelligent, Flux, and Economy 7 schedule setup. Match charge windows to your tariff's cheap-rate periods for maximum savings.
Guide →Timed Charge, Discharge, and Export slots, the midnight rule, multi-battery balancing, and target SOC configuration.
Guide →Self Consumption (Eco), Timed Charge, Timed Discharge, Timed Export — when to use each mode and how to switch between them in the portal.
Guide →What grid service demand response events are, when they happen (typically 4–8 PM peak), how your battery responds, and how to opt in or out.
Guide →Sign up, eligibility (smart meter required, England/Wales/Scotland), how monthly payments work, 3-month delay explained, and managing your participation.
Guide →All-in-One vs Hybrid comparison, product range overview, and which system suits your installation type.
View range →AIO 6kW, AIO 3.6kW, and AIO 2 + MPPT full specifications. AC-coupled, 12–15 year warranty, 13.5kWh integrated storage.
Full specs →3.6kW, 5.0kW, and 8.0kW DC-coupled Hybrid inverters. 2 MPPT trackers, 12-year warranty, pairs with GivBat batteries.
Full specs →GivBat 9.5 Gen3 (unlimited cycles) and 5.12 Gen3. LiFePO4, 100% DoD, stackable to 5 units, 12-year warranty.
Full specs →7.2kW Type 2 tethered charger. Four config modes, WiFi & LAN, RFID cards, LED status guide, and Inverter Control Cloud integration.
Full specs →GivBat batteries supplied and installed by our engineers at one fixed price each — generation matching, addressing and portal configuration all handled.
Batteries — supplied & installed →Dead hybrid or AC-coupled unit? Like-for-like GivEnergy inverters supplied and installed at one fixed price per model, commissioning included.
Inverters — supplied & installed →Enable EPS on your GivEnergy AIO. Dedicated EPS circuit, neutral-earth bond, portal configuration and what it costs.
EPS guide →When to replace vs repair, choosing a GivEnergy replacement model, and what the process involves.
Replacement guide →Bird mesh protection, adding battery storage to a solar-only system, and the full STS upgrades hub.
View all upgrades →New homeowner or installer gone bust? Transfer the GivEnergy portal account to your own email address. Step-by-step process and what documentation GivEnergy requires.
Guide →Earn monthly payments by joining GivEnergy's virtual power plant. Eligibility, sign-up steps, how grid events work, and what it means for your schedule.
Guide →We review monitoring data, app settings, and error history to identify the exact fault without a site visit.
Installer gone bust, portal access lost, account locked. We recover GivEnergy monitoring and rebuild documentation.
CAN cable rewire, CT clamp correction, EPS circuit verification, hardware swap. Targeted visit — no guesswork on arrival.
We compile diagnostic evidence to strengthen warranty claims and support formal escalation to GivEnergy.
Warranty claim supportGivEnergy works well with Octopus tariffs — when set up correctly. We configure charge schedules and dispatch settings to maximise savings.
Tariff optimisationFull performance audit — compare actual vs expected output, check firmware, validate configuration, identify latent issues before they become faults.
Book health checkDownload datasheets, installation manuals, warranty documents, app guides and wiring diagrams for Gen 3 Hybrid, All-in-One, GivBat batteries and EV charger. Self-hosted and always current.
Seeing an error code in your app or on the inverter? Our full GivEnergy fault code index explains what each code means, common causes, and safe next steps.
GivEnergy was one of the UK's most popular solar battery brands, with hybrid inverters, All-in-One units and modular battery stacks installed across hundreds of thousands of homes. GivEnergy Ltd entered administration on 9 April 2026 — but the hardware itself runs on local firmware and continues working. STS supports GivEnergy systems independently. See our administration update for the verifiable record.
Inverter and battery communicate over a CAN bus — a common fault path when communication breaks down after firmware updates or power interruptions. The GivEnergy portal (givenergy.cloud) and mobile app rely on a WiFi dongle (Gen 1/2) or built-in WiFi/LAN (Gen 3); when this loses connection — router change, firmware bug, hardware failure — the portal goes dark even though the system may still be generating.
GivEnergy systems work particularly well with Octopus Energy tariffs (Intelligent, Agile, Go) when configured correctly. Many reported issues with battery not charging on cheap rate trace back to incorrect charge window settings, CT clamp orientation errors, or SoC minimum thresholds.
If you're searching for GivEnergy repair UK, GivEnergy battery not charging, GivEnergy portal offline, GivEnergy CAN fault, or GivEnergy red light, STS provides independent diagnostic and repair support across the UK — not affiliated with GivEnergy Ltd.
We're based in Leeds and cover the whole region on-site — Barnsley, Sheffield, Leeds, Wakefield, Doncaster, Rotherham, Bradford, Huddersfield, York, Harrogate, Hull, the East Coast from Scarborough to Bridlington, and Middlesbrough and Teesside. If your GivEnergy system needs hands-on work, we can be there. Remote diagnostics from £95, on-site repair from £295.
GivEnergy support in YorkshireWe have a locally based engineer in Cardiff — same-day or next-day visits are often possible across the city. From Cardiff we also cover Newport (around 20 minutes away) and Swansea (around 40 minutes) for on-site work. Remote diagnostics work the same wherever you are.
GivEnergy support in CardiffSTS supports all major inverter and battery brands — not just GivEnergy. If you have a mixed-brand system or are comparing options, visit the brand hub.
Browse all 19 brandsTell us what's happening. We'll review your details and come back with a clear diagnosis path — usually same day.
I’ve worked on hundreds of GivEnergy systems and know the kit inside out. If yours is playing up, my promise is simple — no fix, no fee: just £95 if we fix it, free if we don’t.
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