We update firmware, set up inverter to battery communication, and clear errors and faults. Remotely, for Deye owners across Europe and Ukraine.
From first start-up to ongoing support of your system. Most issues are solved remotely, with no site visit.
Firmware, software updates, BMS setup and LiFePO4 parameters (HV and LV). We quote a price as soon as we see the error and your equipment.
Get a quote →Original Deye inverters and Dyness batteries from 5 to 50 kW, delivered across Ukraine.
Get a quote →Real photos from our clients’ sites. Send us a photo of the screen or the error list and we will tell you what to do.
The inverter does not see the battery. Usually it is the protocol setting, the communication cable or the firmware.
The battery does not wake up or has shut down on protection. We help even with batteries discharged to zero.
DC fault. We check battery parameters, charge and discharge currents and the firmware version.
Leakage protection has tripped. We find the cause: settings, insulation or wiring.
Output overcurrent. We set limits and check the load and inrush currents.
The inverter cannot connect to the grid. Diagnostics, reset and grid parameter check.
Communication faults between inverters in parallel (CANBus). Master / slave setup and firmware.
We work with the inverter’s service parameters to find the real cause of the fault.
Can’t find your error? Send us a photo and we’ll sort it out.
Send a photo of the errorOn Telegram, Viber or by phone. Briefly describe the problem.
Inverter screen, error list, inverter and battery model.
Remotely over the internet or by video call, step by step.
We make sure the system runs stably. If needed, we keep it under monitoring.
We work with Deye inverter owners across Europe: firmware, setup, BMS and battery errors. Everything is done online, no site visit needed. Write to us in English, Ukrainian or Russian.
Message us on TelegramReal sites of our clients, from apartments to utility rooms. Swipe or tap a photo.
The inverter needs to be online through its Wi‑Fi datalogger, or you help us over a video call. We guide you step by step and check the result.
Yes, in most cases Deye firmware can be updated remotely. Some faults need a special USB stick; we will tell you exactly what is required.
We do not repair circuit boards. We handle software, setup, diagnostics and installation. If the fault is hardware, we tell you right away.
Deye inverters from 5 to 800 kW: single-phase and three-phase, low and high voltage, single units and parallel systems.
Write to us in English, Ukrainian or Russian.
We agree on the payment method when we discuss your problem, before any work starts.
Send a photo of the inverter screen with the error. We reply on Telegram and Viber.