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Brand support · Hanchu ESS

Hanchu ESS Inverter Support — Battery Faults, SolarMan Setup & Tariff Configuration

Hanchu battery not charging, SolarMan offline, BMS communication errors, or grid disconnection faults — we diagnose Hanchu hybrid systems at the engineering level. Remote-first using SolarMan data and charge schedule logs. Independent from Hanchu and your installer.
  • Not affiliated with Hanchu ESS
  • All Hanchu HC-HY hybrid models supported
  • SolarMan & tariff configuration specialists
Hanchu battery not charging overnight?

Most Hanchu 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 diagnosticSee the Solar Health Plan

Safety: If your Hanchu battery is showing error lights or unusual behaviour, isolate at the DC switch before investigating.

5.0
13 Trustpilot reviews
Trustpilot 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 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

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

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

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

michael fairhurst · May 2026 Trustpilot

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.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

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.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot

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 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

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

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

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

michael fairhurst · May 2026 Trustpilot

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.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

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.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot
Hanchu Faults

Common Hanchu problems we diagnose

Every fault below has a proven diagnostic path. Book a diagnostic if you're unsure where to start.

Battery & Charging
🔋
Most common
Battery not charging overnight

Hanchu hybrid inverter connected but battery stays flat overnight despite an Octopus or time-of-use tariff. Most often a TOU schedule configuration error in SolarMan — charge window not enabled, grid charge toggle off, or SoC target already met.

See diagnostic guide →
⏱️
Tariff
Octopus / cheap-rate charging not working

Hanchu inverters are configured via SolarMan's TOU schedule. Common issues include charge windows offset by BST/GMT, the grid charge enable setting being toggled off, or peak shaving settings overriding the schedule. We configure the full TOU schedule remotely.

See diagnostic guide →
📡
BMS
BMS communication fault

Hanchu LV batteries communicate with the inverter over CAN bus. A BMS comm fault means the inverter can't read the battery state, which causes it to stop charging or discharging. Can be caused by a loose CAN cable, incorrect BMS pairing, or a battery firmware mismatch.

See diagnostic guide →
⬇️
Common
Battery not discharging as expected

Battery fully charged but not powering the house during peak times. Often caused by a discharge schedule not configured in SolarMan, or the minimum SoC threshold being set too high. EPS/backup mode must also be correctly configured if backup power is needed.

See diagnostic guide →
Services

What we do for Hanchu owners

Remote Hanchu Diagnostic

We review SolarMan data, TOU schedules, BMS logs, and error history to identify the exact fault without a site visit.

SolarMan data review
TOU schedule audit
Battery BMS fault isolation
Book remote diagnostic

Hanchu Tariff Configuration

We configure your Hanchu charge and discharge schedule from scratch for Octopus Agile, Intelligent, Go, or Flux. Most configuration faults resolved in a single remote session via SolarMan.

Full TOU schedule build in SolarMan
Peak shaving & export limit setup
Grid charge enable verified
Book tariff config

On-Site Hanchu Repair

EPS circuit verification, CAN bus cable checks, BMS pairing, DC fault location, and component replacement for Hanchu inverters and Blade LFP batteries.

Evidence-led targeted checks
Safety-focused report
Repair or replacement path
Discuss visit

About Hanchu ESS — what you need to know

Hanchu ESS is a Chinese energy storage manufacturer producing hybrid inverters and LiFePO4 (LFP) battery systems for the residential and light commercial market. Their UK range includes single-phase hybrid inverters — the HC-3.68KW-HY, HC-5KW-HY, and HC-6KW-HY — paired with Blade LFP battery modules in capacities from 3.2kWh to 9.4kWh per unit. The inverters carry an IP66 rating, a 12-year inverter warranty, and a 10-year battery warranty. Blade LFP chemistry offers a high 95% depth of discharge, making nearly all the stated capacity usable in daily cycling.

Monitoring and schedule configuration is handled through the SolarMan platform (SolarmanPro for installers, the SolarMan app for homeowners). The most common support queries we handle for Hanchu systems are: Hanchu battery not charging overnight, Hanchu SolarMan offline, Hanchu BMS communication fault, Hanchu grid disconnection, and Hanchu Octopus tariff setup. Hanchu systems are distributed in the UK through companies including Powerland and Solar Battery Group. STS provides independent support — not affiliated with Hanchu ESS.

Inverters
HC-3.68KW-HY — 3.68kW single-phase
HC-5KW-HY — 5.0kW single-phase
HC-6KW-HY — 6.0kW single-phase
Also: 7kW, 8kW, 10kW models
LV Batteries (Blade LFP)
3.2kWh, 3.68kWh, 5.12kWh
9.4kWh per module
95% DoD · 10yr warranty
Key Specs
Monitoring: SolarMan / SolarmanPro
IP66 rated (inverter)
12yr inverter warranty
Grid: G98/G99 compliant
We also support

STS supports all major inverter and battery brands — not just Hanchu. If you have a mixed-brand system (e.g. Hanchu inverter with Lux or Dyness battery), visit the brand hub.

Browse all supported brands
FAQ

Hanchu questions answered

Hanchu inverters are configured via SolarMan's Time of Use (TOU) schedule. The most common causes of overnight charging failure are: the charge window not being enabled, the grid charge toggle being off, or the SoC minimum being set too high so the battery never triggers a charge cycle. BST/GMT clock offsets also commonly cause windows to fire at the wrong time. We configure the full schedule remotely.
SolarMan requires a stable WiFi connection from the inverter's datalogger. After a router change, password update, or firmware push, the datalogger loses connectivity. The inverter and battery continue operating normally — only monitoring data is lost. We reconfigure the datalogger remotely to restore SolarMan.
Hanchu batteries communicate with the inverter via CAN bus. A BMS comm fault means the inverter has lost communication with the battery management system. Causes include a loose or damaged CAN cable, incorrect DIP switch address settings on the battery, or a mismatch between inverter and battery firmware versions. This is typically diagnosed and resolved remotely via SolarMan logs.
Yes. We configure the TOU charge schedule in SolarMan to correctly capture cheap rate windows for Octopus Agile, Go, Intelligent, Flux, or any other time-of-use tariff. This often resolves overnight charging complaints that aren't hardware faults — just incorrect or incomplete schedule configuration.
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Ready to fix your Hanchu system?

Tell us what's happening. We'll review your SolarMan data and come back with a clear diagnosis — usually same day.

  • Not affiliated with Hanchu ESS
  • Free remote diagnostic · no fix, no fee
  • On-site visits available across the UK

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