My GivEnergy hybrid inverter + battery system had worked faultlessly for 3 years when it suddenly stopped charging and discharging the battery. On contacting my supplier, who had used a sub-contractor for the installation work, I was provided with an email address at GivEnergy but, as it turned out, this is only for GivEnergy Software who are not able to assist. A Google search led to the Solar Tech Support web site, which contains a wealth of helpful information. I requested a remote solar diagnostic, and after providing Ron access to my inverter, he was able to identify and fix the problem within minutes. I am very impressed by Ron’s expertise and knowledge, which included useful information on the current state of GivEnergy Ltd. I would thoroughly recommend Solar Tech Support.
SolaX Inverter Support — X-Hybrid Battery Charging, SolaX Cloud & Tariff Faults
- Not affiliated with SolaX Power
- All X-Hybrid, T-BAT & Triple Power models supported
- SolaX Cloud & tariff configuration specialists
Most SolaX configuration issues are fixed remotely in a single session. Tell us what you're seeing and we'll resolve it.
Book your free remote diagnosticSafety: If your SolaX or T-BAT is showing error lights or unusual behaviour, isolate at the DC switch before investigating.
Genius when it comes to solar and off grid installations we spent days trying to work out what was causing our problems and Ron resolved it in less than an hour! Cant reccomend enough
Diligent and reliable service.
Unfortunately, only weeks after Givenergy went into receivership, our system failed. Our installers were unhelpful in the extreme but Solar Tech Support were able to diagnose a terminal problem with our Gen 1 AC3 inverter. They advised regarding the available options and (having decided to buy a replacement Givenergy inverter as the simplest solution) they were able to get us up and running. They made themselves readily available to talk through the process and manage any faults. I would have no problem recommending them.
After 7 months of not being able to access/control my system following a change of wi-fi provider, followed by the news that GivEnergy had ceased trading i was left high and dry. I was unable to get any help whatsoever from my installer, tried various electrical tradespeople etc but no-one knew how to help me. Changed the Dongle but then couldnt get this change recognised in the inverter. Found Solar Tech Support while researching yet again online. Ronald has been amazing. Responding very quickly to my emails and very knowledgeable on the system. Managed to give us the information we needed to get the Dongle up and running and created me another account which now works as it should. His help has been invaluable. Thank you so much. Reviews I saw from other people said Solar Tech Support are very good, but i would say they are Outstanding!! Thanks again for all your help- Mick & Sandra
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.
Common SolaX problems we diagnose
Every fault below has a proven diagnostic path. Book a diagnostic if you're unsure where to start.
SolaX X-Hybrid connected but T-BAT not charging on cheap rate. Most often a ForceTime or TOU schedule configuration error in SolaX Cloud — ForceTime not enabled for the correct period, charge power set too low, or grid charge not active. BST/GMT offsets are very common on SolaX systems.
See diagnostic guide →SolaX's ForceTime feature forces the inverter to charge at a set power level during a specified window. It's powerful but frequently misconfigured. Common errors: ForceTime period not overlapping the cheap rate window, SoC target already met, charge power too low to make meaningful progress, or daylight saving time offset causing the window to fire incorrectly.
See diagnostic guide →SolaX T-BAT and Triple Power batteries communicate with the X-Hybrid inverter via CAN bus. A BMS comm fault stops the inverter reading battery state. Causes include a loose CAN cable, incorrect battery type selected in inverter settings, or a firmware mismatch between battery and inverter. Diagnosable remotely via the SolaX Cloud event log.
See diagnostic guide →Triple Power HV batteries require the inverter battery type setting to be correctly selected — choosing T-BAT when Triple Power is installed (or vice versa) will cause the inverter to report a BMS fault or show 0% state of charge. Module address assignments and CAN termination must also be correct when stacking multiple Triple Power units.
See diagnostic guide →T-BAT battery charged but not powering the house during peak times. Common causes: discharge schedule not configured in SolaX Cloud, minimum SoC threshold too high, or the inverter's self-use mode not active. EPS backup must also be separately configured if backup power during outages is needed.
See diagnostic guide →SolaX hybrid powered but not generating. Check SolaX Cloud for DC input voltage — if zero, inspect DC isolators and PV string connections. MPPT tracking issues or a DC isolation fault can stop generation while battery functions continue.
See diagnostic guide →SolaX inverters comply with G98/G99 and disconnect if grid voltage or frequency is outside limits. The inverter reconnects automatically once conditions normalise. In high-solar-density areas, repeated trips may require export limiting or reactive power configuration.
See diagnostic guide →SolaX X-Hybrid inverters support EPS mode but require dedicated backup wiring and must be enabled in settings. If power was lost during a grid outage, EPS may not have been commissioned during installation, or the connected load exceeds the inverter's EPS output rating.
See diagnostic guide →SolaX Cloud shows no data. The inverter's WiFi or 4G pocket WiFi logger has lost connectivity — common after a router change, password update, or ISP-pushed firmware. The system usually keeps running, but offline doesn't prove it, so check the inverter's own screen. If a WiFi logger won't reconnect, we can set it up on site, from £195.
See diagnostic guide →SolaX uses a Pocket WiFi dongle (or 4G Pocket LAN for remote sites) to connect to SolaX Cloud. The dongle requires 2.4GHz WiFi. After a router change or upgrade, reconnection requires re-pairing the pocket WiFi to the new network. Start with our general WiFi checks. 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 diagnostic guide →What we do for SolaX owners
Remote SolaX Diagnostic
We review SolaX Cloud data, ForceTime schedules, T-BAT BMS logs, and error history to identify the exact fault without a site visit.
SolaX Tariff Configuration
We configure ForceTime settings and TOU schedules in SolaX Cloud for Octopus Agile, Intelligent, Go, or Flux. SolaX ForceTime is powerful but often set up incorrectly — we fix it from scratch in a single session.
On-Site SolaX Repair
EPS circuit verification, CAN bus checks, T-BAT BMS pairing, DC fault location, and component replacement for SolaX X-Hybrid inverters.
SolaX datasheets, manuals & warranty PDFs
Download datasheets, installation manuals and warranty documents for SolaX hybrid inverters and battery systems. Self-hosted and always current.
SolaX fault code index
Seeing an error code on your SolaX inverter? Our fault code index explains what each code means, common causes, and safe next steps.
About SolaX Power systems — what you need to know
SolaX Power is a Chinese manufacturer producing hybrid and string inverters with a strong UK installed base, particularly from installations between 2015 and 2024. Their core hybrid range is the X-Hybrid series — single-phase X1-Hybrid (3kW–6kW) and three-phase X3-Hybrid (5kW–15kW). These pair with two battery families: the older T-BAT range (T-BAT-SYS-HV, T-BAT-5.8, T-BAT-3.0) and the newer Triple Power high-voltage batteries (5.8kWh per module, stackable to 11.6kWh). Both families use CAN bus communication with the inverter. SolaX's ForceTime feature allows precise charging windows to be configured, but it is frequently set up incorrectly — making it one of the most common causes of overnight charging failure on SolaX systems.
Monitoring is provided by the SolaX Cloud platform. The inverter connects via a Pocket WiFi dongle (2.4GHz only) or Pocket LAN adapter. The most common queries we handle: SolaX battery not charging overnight, SolaX ForceTime not working, SolaX Cloud offline, T-BAT or Triple Power BMS communication fault, and SolaX grid disconnection fault. A common Triple Power-specific issue is the inverter battery type being left on the T-BAT setting after a battery upgrade — this causes the inverter to reject the Triple Power modules. STS provides independent support — not affiliated with SolaX Power.
STS supports all major inverter and battery brands — not just SolaX. If you have a mixed-brand system, visit the brand hub.
Browse all supported brandsMore SolaX help
Every SolaX X-Hybrid fault code explained — TZ Protect, Grid Relay, Grid Volt, C1 charger and BMS errors. What each means, the likely cause, and the fix.
See fault codesIndependent SolaX problems support across the UK — 3 faults STS engineers diagnose and repair. Free remote diagnostic, no fix no fee.
See all problemsSolar battery not charging from solar or the grid? This covers every common cause. Free remote diagnostic — no fix, no fee. Same-day.
See battery not chargingSolar 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 SolaX Cloud offlineDownload SolaX datasheets, installation manuals, warranty PDFs, app guides and wiring diagrams. X1, X3 hybrid inverters, and Triple Power batteries.
See documents & downloadsSolaX questions answered
Ready to fix your SolaX system?
Tell us what's happening. We'll review your SolaX Cloud data and come back with a clear diagnosis — usually same day.
- Not affiliated with SolaX Power
- No fix, no fee covers remote fixes. On-site work is quoted in writing before we start.
- On-site visits available across the UK
We’re busier than ever. Thank you for your patience.
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.
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Got a solar fault or need a quick answer? Drop us a message and we usually reply within a few minutes. Mon–Fri, 9am–7pm.