Tell us what you're seeing — error code, LED behaviour, what the app shows, what changed recently. We'll identify the fault and tell you the fastest fix.
Book your free remote diagnosticSolar not working at all?Independent — not affiliated with GivEnergy Ltd.
We reached out to Solar Technical Support after our solar energy system stopped working. As GivEnergy 'solar orphans,' we have been extremely pleased with the service from STS - our system was back up and working within a day of us contacting them. We found other solar engineers reluctant or unable to help us, so it has been great to find this organisation. We would definitely use them again and would recommend them to anyone, especially GivEnergy orphans!
I contacted Solar Tech Support with an issuewith my solar and Ron went out of his way to help me. Despite the fact that I'm situated hundreds of miles away and he knew there'd be no business opportunity from my inquiry, Ron still chased solutions and helped me get an understanding of what I needed to do. I love working with people like this, people with integrity and service at the heart of what they do. I just wish hew was nearer!
What a fantastic service. Had my fault diagnosed within minutes and actually managed to resolve the issue remotely within a few minutes more. This guy is like a “Solar Batman” helping consumers fix their problems using his extensive industry knowledge and expertise. Outstanding service. Thank you so much.
After 6 months of trying to find someone to help with non functioning Givenergy batteries and inverter, I contacted Ron at STS who remotely sorted the problem within days. Highly recommended.
Ron is truly a gem. Logged into my GivEnergy system remotely, dignosed a faulty cell in the battery, providing clear explanation, including screen grabs. Offered advice of companies I could use to fix battery. All completed over WhatsApp with clear, precise & friendly comms. Stayed true to company statement/ethos "We dont fix it, you dont pay" and didn't charge me aynthing. 100% recommend if you have any issues with your solar system.
Five stars for Ronald at Solar Tech Support. It’s been stressful trying to figure things out since GivEnergy went under, but Ronald was a welcome relief. He was incredibly knowledgeable about the system and sorted me out with some excellent advice. Really glad I found this service and will be keeping them on speed-dial for any issues in the future!
The most common GivEnergy call-outs. Most have a definitive cause that can be identified from monitoring data alone.
Charge windows correct but battery stays empty. CT clamp misread, Octopus Intelligent conflict, or incorrect schedule format. Includes the midnight rule and tariff-specific fixes.
See battery not charging overnightBattery shows full but house uses grid. Paused battery, reserve level too high, Export First mode active, or discharge power limit set to zero.
See battery not dischargingInverter loses contact with the battery BMS: RS485 on LV GivBat packs, CAN on HV kits. Firmware mismatch, comms cable faults, HV termination errors, or BMS lock state after a protection event.
See BMS Comm FailSolid red means a fault that needs investigating. Flashing red on a Gen 1 or Gen 2 battery means very low charge. The guide explains every battery and inverter light. Do not open the unit.
See red light on the batteryBattery stops charging below 0°C, capacity drops in cold. Temperature thresholds, winter schedule adjustments, and when it's normal vs a fault to investigate.
See cold weather performancePortal shows grid import despite a charged battery. Normal inverter lag vs sustained configuration issues — and how to tell the difference.
See system using grid with full batterySolar generating but battery stays empty. Covers system mode, SoC limits, export limit conflicts, CT clamp errors, a Timed Export slot running in daylight, and temperature lockout.
See battery not charging from solarSOC dropping, jumping, or stuck at a fixed value. Gen 1 and Gen 2 BMS firmware versions 1036–3022, calibration cycles, and fixes for the battery percentage bug across all generations.
See SOC bugGiv-Bat 5.2 and 2.6 were designed for 80% depth of discharge. A 2024 update widened that window on E.ON-era packs; the cells are now worked past their design limit. What it did, what we see, and why we put it back to 3022.
See 80% battery and the 2024 firmwarePortal issues, settings that keep reverting, and tariff-related lockouts — often caused by third-party API control or WiFi connectivity problems.
App won't load on your phone, or the app and givenergy.cloud show no data. Covers the phone app, WiFi dongle faults, router and firewall settings, cloud-side outages and a lapsed Premium plan.
See app or portal offline, no dataCharge schedule or system mode keeps reverting without you touching it. Usually something else with control of the inverter, such as a smart tariff, Axle Energy during a grid event, or Home Assistant, overriding your settings.
See settings changing themselvesSettings greyed out or reverting because your energy provider controls the inverter via API. How to identify which service has control and remove the lockout safely.
See smart tariff lockoutSettings reset, update stuck on Updating, portal offline or an inverter that won't boot after an update. What to check, and when to call us.
See firmware update gone wrongFaults with the inverter itself, solar generation, EPS backup power, EV chargers, and error codes that indicate a component issue.
House goes dark in a power cut despite having a battery. EPS may be disabled in settings, the EPS circuit wired incorrectly, or the battery SoC below the EPS threshold.
See EPS not working in a power cutOn some All-in-One + Giv-Gateway systems, RCDs trip when the grid fails, or the AIO trips when it returns. What the standards require, what GivEnergy's documents said and when, what the evidence says switches, and what we test in island mode.
See Gateway earthing in a power cutGivEnergy EV charger offline, showing fault codes, not charging, or charging slowly. Covers both GivEnergy fault code lists, configuration modes, and network connectivity issues.
See EV charger not workingGivEnergy AIO or hybrid inverter with no display, no output, or won't restart. Covers isolator checks, battery deep discharge, firmware failure, and hardware faults.
See inverter not turning onZero or unexpectedly low solar output. Covers export limit, DC isolator, grid overvoltage, standby mode, curtailment, and hardware faults — step by step.
See solar not generatingInverter rapidly clicking as it repeatedly tries and fails to connect to the grid. Covers relay failure, AC voltage issues, grid frequency faults, and firmware problems.
See click of deathThe battery isolator (DC MCB) keeps tripping or won't hold when reset. Covers poor cable termination, buck-boost MOSFET failure, BMS protection events, and breakers that fail early and need replacing, plus where the breaker sits on each GivEnergy battery.
See battery DC MCB trippingThe catch-all guide for GivEnergy commercial kit: what the liquidation of GivEnergy Commercial Ltd (August 2026) means for warranties and support, design limits in the manuals, reported platform faults, and independent O&M.
See Commercial All in One & PCSFull index of GivEnergy error codes — grid faults, BMS alarms, communication errors, over-temperature events — with cause and safe next steps for each code.
See GivEnergy fault code indexEvery fault guide above is based on real GivEnergy diagnostic sessions. We work through each problem using the same approach as a remote session — isolating the cause before recommending any action, rather than swapping parts or factory-resetting without understanding why. GivEnergy inverters log a lot of useful data in the portal: battery SOC history, charge/discharge waveforms, fault registers, and CT clamp readings all point directly to the root cause in most cases. That's why the majority of GivEnergy faults — including most BMS comms faults, schedule issues, and CT clamp errors — are fully diagnosable without a site visit.
See diagnostic methodologyIf your fault isn't covered by the guides above, or you've worked through a guide and the problem persists, a remote diagnostic session will find the cause. We're independent from GivEnergy and from your installer — so you get an objective second opinion on what's wrong and what actually needs to be done.
See independent second opinionIndependent GivEnergy diagnostics, repair and post-administration support across the UK — battery, inverter, portal and warranty, with or without an installer.
See GivEnergy hubHas GivEnergy gone bust? GivEnergy Ltd went into administration on 9 April 2026. Who is owed the money, what it means for your system, and how STS can help.
See administration updateGivEnergy setup guides: WiFi dongle and AECC setup, portal and monitoring, battery calibration, firmware updates, restarting the system and router setup.
See setup guidesGivEnergy configuration guides: charge schedules, CT clamp direction, eco mode, energy management, export limits, tariff optimisation, Axle Energy grid events.
See configurationGivEnergy account guides: how to transfer a system in the app, what to do if you lost the email or your installer has gone, and Axle Energy grid services.
See accountIndependent GivEnergy fault code reference — every error code explained, root causes identified, and the diagnostic next step. Free remote diagnostic from STS.
See fault codesA remote diagnostic session identifies the exact cause using your monitoring data, error history, and system configuration — then provides a clear repair plan. WiFi isn't remote work: if the dongle needs reconnecting to your WiFi, we can set it up on site, from £195.
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 £125 if we fix it, free if we don’t.
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