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Dyness · Common problems & faults

Dyness common problems & faults

STS engineers diagnose and repair this fault on Dyness systems. Click any topic below for a full step-by-step guide, or book a free remote diagnostic and we'll walk you through it.
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Ron was extremely helpful and tried his best to repair/reset our GivEnergy inverter remotely. In the event he was unsuccessful but he couldn’t have been more helpful. If you have problems with a GivEnergy system please contact him. Highly recommended

Neil Crichton · Jun 2026 Google

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

My 90-year-old father-in-law had a solar system installed nearly three years ago that never worked properly and kept tripping out. Neither the original installer nor GivEnergy could resolve the issues, and we were even pushed towards replacing the system entirely when GivEnergy went bust. I contacted Ron at Solar Tech Support via WhatsApp, and within a few hours he had diagnosed multiple faults — including incorrect wiring that posed a potential fire risk. He carried out a home visit in Nottingham for £295 (including parts), fixed everything, completed firmware updates, and ensured the system was fully operational. Since then, it has worked perfectly. Ron was knowledgeable, responsive, and took the time to explain everything clearly. Highly recommended — excellent value and complete peace of mind.

Julian F · Jun 2026 Google

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. 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

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

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

What goes wrong with Dyness batteries

Almost every Dyness fault we see lands on one product: the Tower-Pro high-voltage battery. It runs at 100 to 400V DC in stacks of 2 to 6 modules, and when something goes wrong the paired inverter flags a BMS alarm, an insulation error or a module communication failure, then the battery stops charging and discharging. Our Tower-Pro HV faults guide walks through the full diagnostic path, from reading the alarm code in the inverter portal to isolating a faulty module from the stack.

The good news is most BMS alarms are configuration problems, not dead hardware. Two modules sharing the same address after an expansion, a loose inter-module link cable, or a battery count on the inverter that doesn't match the stack will all throw communication errors. Insulation faults are different: they mean current is leaking from the HV circuit to earth, so switch the system off and leave it off until an HV-qualified engineer has looked at it. The remote diagnostic is free, and we tell you which kind of fault you've got before any money changes hands.

FAQ

Dyness fault questions answered

It depends on the code in your inverter's event log. Most BMS alarms are configuration or degradation issues: two modules set to the same address, a loose inter-module link cable, an incorrect battery count on the inverter, a firmware mismatch, or cell voltage imbalance in one module. An HV insulation fault is the exception. That one is safety-critical, it means current is leaking to earth, so isolate the system and don't restart it. Send us the alarm code and we'll tell you which path you're on.
Often, yes. Address conflicts, wrong battery count settings, firmware mismatches and transient communication errors are configuration problems we can sort remotely or talk you through. Mild cell imbalance can sometimes be corrected with full charge-discharge cycles so the BMS can rebalance the cells. Insulation faults and failed modules can't be handled remotely. The Tower-Pro runs at up to 400V DC, so any physical work needs an HV-qualified engineer on site.
Nothing. The remote diagnostic is free: we analyse the alarm history, BMS fault codes, cell voltage data and stack configuration, then tell you exactly what's wrong. No fix, no fee. If the fault turns out to need on-site HV work, you get a clear scope and quote before anything is booked.
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Tell us what's happening with your Dyness system. Free remote diagnostic, no-fix-no-fee. Most configuration faults resolved during the 30-minute session.

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