Particularly useful in helping to fix my GivEnergy All in One system with a disabling fault.
LuxPowerTek Inverter Support — UHome Battery Faults, Charging & Tariff Configuration
- Not affiliated with LuxPowerTek
- LXP hybrid & UHome battery models supported
- LuxPower portal & tariff configuration specialists
Most LuxPowerTek configuration issues are fixed remotely in a single session. Tell us what you're seeing and we'll work it out.
Book your free remote diagnosticSafety: If your UHome battery is showing error lights or unusual behaviour, isolate at the DC switch before investigating.
Givenergy panels and battery had been offline for a couple of months after various changes by Givenergy to their app etc. Ron did a fantastic job of sorting it out - got things up and running almost immediately, followed by some fine tuning to get things fully configured. What a legend - great service, great comms, great result.
⭐⭐⭐⭐⭐ Absolutely Outstanding Service! My GivEnergy system had completely gone down, and unfortunately I was getting absolutely no support from either the original fitter or the supplier. I was left completely stuck with a system that wasn’t working. I contacted Solar Tech Support and they were absolutely brilliant from start to finish. They quickly got to the bottom of the problem, knew exactly what they were doing, and managed to get my entire system back up and running. Hands down, these guys are absolute experts in their field. The level of knowledge, professionalism and customer service was exceptional, especially when I’d already been left without any support elsewhere. If you have a GivEnergy system and you’re struggling with an issue, don’t hesitate to contact Solar Tech Support. I honestly can’t recommend them highly enough. 5 stars all day long! 🌟🌟🌟🌟🌟
Contacted Solar Tech about my Givenergy battery storage system that wasn't working. Battery status was "idle". Given the company Givenergy had gone bust, I need independent quality technical help. Very patient and clearly very knowledgeable about battery systems Ron diagnosed possible issues and suggested several possible remedies. Worked our way through them and fortunately it began to work. The fault was very specific and only an experienced engineer would have thought to check. Suffice to say I'll be back if I need independent support again. Lastly you only pay if there is a solution. Outstanding.
The Solar Tech Support company was the only one to respond to a request for someone to supply and fit a new inverter for our solar panels after our old one finally expired after 26 years. Ron kept us well informed throughout, came and ascertained that the issue was down to the inverter having failed then sourced and fitted a new one. He got the system up and running again, set up the wi-fi performance feedback and took away the old inverter for disposal. By acting promptly and fitting the job around existing commitments we were able to get our solar power unit back in operation with minimal delay in the short while before we were due to go away for a week. The work was carried out very professionally and we were asked to confirm that all was in order the following day. I was impressed that, having recently taken on additional work for GivEnergy customers we were able to keep our solar panel down-time to a minimum. I would highly recommend for prompt attention and first-rate service.
Made contact for assistance with my GiveEnergy battery that wasn't discharging. Ronald looked at my issue the same day, identified the root cause with a clear explanation of what was going on along with some options on how to remediate the issue. So far my battery is now working and keeping my fingers crossed that it stays this way. Ronald is a very experienced and knowledgeable engineer and I would recommend.
Common LuxPowerTek problems we diagnose
Every fault below has a proven diagnostic path. Book a diagnostic if you're unsure where to start.
LuxPowerTek LXP hybrid connected but UHome battery doesn't charge on cheap rate. Most often a Time of Use schedule configuration error in the LuxPower portal — charge window not enabled, grid charge toggle off, or SoC minimum already met. BST/GMT clock offset is a very common cause.
See diagnostic guide →Lux inverters are configured via the LuxPower portal's TOU schedule. Common issues include charge windows firing at the wrong time due to BST/GMT offset, grid charge being disabled, or the SoC target being set too high so the battery never triggers a charge. We configure the full schedule remotely.
See diagnostic guide →LuxPowerTek UHome (LFP-2400) batteries communicate with the LXP inverter via CAN bus. A BMS comm fault stops the inverter reading battery state, causing it to stop charging or discharging. Causes include a loose CAN cable, incorrect battery address configuration, or a mismatch in battery count settings.
See diagnostic guide →UHome battery fully charged but not powering the house during peak times. Commonly caused by a discharge schedule not set in the LuxPower portal, minimum SoC threshold too high, or the inverter operating in the wrong mode. EPS backup must also be separately configured if needed.
See diagnostic guide →LuxPowerTek LXP hybrid powered but not generating. Check the portal for DC input voltage — if zero or very low, inspect DC isolators and PV string connections. MPPT tracking errors can also suppress production while battery and grid functions continue normally.
See diagnostic guide →LuxPowerTek inverters comply with G98/G99 and disconnect if grid voltage or frequency is outside permitted limits. The inverter reconnects automatically. If trips are frequent — common in dense solar areas — export limiting may need to be configured.
See diagnostic guide →LuxPowerTek LXP inverters support EPS backup mode, but this requires dedicated EPS output wiring during installation and must be enabled in settings. If the house lost power during a grid outage, EPS may not have been commissioned — or the load exceeds the inverter's EPS output rating.
See diagnostic guide →LuxPowerTek uses its own LuxPower monitoring portal. If the portal shows no data, the inverter's WiFi logger has lost its connection — common after a router change or password update. It's often only remote monitoring and schedule access that's affected: the system usually keeps running, so check the inverter's own screen.
See diagnostic guide →LuxPowerTek dataloggers require 2.4GHz WiFi. After a router upgrade many connections drop because the new router defaults to 5GHz or uses band steering. 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 Lux Power owners
Remote Lux Power Diagnostic
We review LuxPower portal data, TOU schedules, BMS logs, and error history to identify the exact fault without a site visit.
Lux Power Tariff Configuration
We configure your LuxPowerTek charge and discharge schedule from scratch for Octopus Agile, Intelligent, Go, or Flux. Most configuration faults resolved in a single remote session via the LuxPower portal.
On-Site Lux Power Repair
EPS circuit verification, CAN bus checks, UHome battery BMS pairing, DC fault location, and component replacement for LuxPowerTek LXP inverters.
Lux datasheets, manuals & warranty PDFs
Download datasheets, installation manuals and warranty documents for Lux hybrid inverters and battery systems. Self-hosted and always current.
Lux fault code index
Seeing an error code on your Lux inverter? Our fault code index explains what each code means, common causes, and safe next steps.
About LuxPowerTek systems — what you need to know
LuxPowerTek (often referred to as Lux Power or Lux) is a Chinese manufacturer producing hybrid inverters and LiFePO4 battery systems for the UK residential market. Their core UK range includes the LXP-3600, LXP-5000, and LXP-6000 single-phase hybrid inverters, paired with the UHome (LFP-2400) battery module — a 2.4kWh stackable LFP unit with 90% depth of discharge and a 30A charge/discharge rate. Multiple UHome modules can be stacked to build the required total storage capacity. Systems carry an IP65 rating and a 10-year battery warranty.
Monitoring and schedule configuration is managed through the LuxPower monitoring portal (luxpowertek.com). The inverter's WiFi logger must maintain a stable 2.4GHz connection for remote access to work. The most common queries we handle for Lux Power systems: Lux Power battery not charging overnight, LuxPower portal offline, UHome BMS communication fault, Lux grid disconnection, and LuxPowerTek Octopus setup. Lux systems are sometimes sold as Infinity Innovations branded packages in the UK. STS provides independent support — not affiliated with LuxPowerTek.
STS supports all major inverter and battery brands — not just LuxPowerTek. If you have a mixed-brand system (e.g. Lux inverter with Pylontech or Dyness batteries), visit the brand hub.
Browse all supported brandsMore Lux Power help
Solar 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 chargingIndependent Lux Power problems support across the UK — 2 faults STS engineers diagnose and repair. Free remote diagnostic, no fix no fee.
See Lux Power 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 portal offlineDownload Lux datasheets, installation manuals, warranty PDFs, app guides and wiring diagrams. LXP hybrid inverters and uHome monitoring.
See documents & downloadsLuxPowerTek questions answered
Ready to fix your Lux Power system?
Tell us what's happening. We'll review your LuxPower portal data and come back with a clear diagnosis — usually same day.
- Not affiliated with LuxPowerTek
- 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.
Every message is read and answered, so please don’t send it twice; that only slows the queue.
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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.