During the operation of the KS 5200PS power station, an error e03 occurred.

18 Dec 17:14

6 min. read

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E317 and Baxi boiler [Resolved / Personal Experience] E03 KS5200PS

This content has been automatically translated from Ukrainian.

During the operation of the power station KS 5200PS, I encountered an error E03. Due to the almost complete lack of public technical information regarding this model on the internet, I contacted the technical support of the manufacturer Könner & Söhnen directly, requesting clarification and documentation.

In response, the support service sent me (not immediately, I will explain this below) two technical files with a detailed description of possible connection schemes, operating modes of the station, grounding recommendations, working with generators and solar panels, as well as an explanation of the logic of mode switching.

I am publishing these materials exclusively for informational purposes, as at the time of writing this article, there is practically no structured and understandable documentation regarding KS 5200PS available online, especially in Ukrainian. I hope this information will be useful to other owners of this station.

My disclaimer

The materials provided below are published exclusively for familiarization.

I am not a representative of the manufacturer and do not provide official recommendations for installation or operation.

Any electrical installation work must be carried out by qualified specialists in accordance with current norms and regulations.

All decisions are made at your own risk.

Manufacturer's disclaimer (Könner & Söhnen)

This informational material is for familiarization purposes and is intended to demonstrate the functions of Könner & Söhnen products and possible applications.

All recommendations must be adapted to specific installation conditions.

Installation must be carried out in accordance with current standards and regulations.

The manufacturer is not responsible for incorrect installation and its consequences.

I will add the content of the files below this post. And now a bit of my own experience.

E317 and Baxi boiler

The KS5200PS station was purchased for the Baxi boiler + 2 pumps. The ability to power the entire house (lights, refrigerator, sockets) is a nice bonus.

On the very first day of use - two problems.

The boiler shows error E317
The KS5200PS station shows error E03

I installed a panel with AVR. But the boiler decided to show error E317. This is not related to this charging station. I described in more detail what the problem was and how to fix it in this post.

[Resolved / Personal Experience] E03 KS5200PS

However, the E03 error is larger and more unclear. According to the documentation:

Error code 03

Battery overcharged: Return to the repair center.

or

Battery voltage too high: Check if the specifications and number of batteries meet the requirements.

Sending such a heavy thing to the repair center is not an option. And the other option "Check if the specifications and number of batteries meet the requirements." doesn't help much.

In general, I probably need to describe the symptoms of E03.

The charging station is powered from the city network
Reaches 100% -> Error E03 (the red indicator blinks and a loud sound signal ~ 7 times).
The station does not deliver electricity because the AVR switched the house to the city. But after 10-20 minutes, it starts charging again (reminding that it shows a charge of 100%). -> error E03.

And so on in circles. Error and sound signal every 10-20 minutes.

Заряджається на 100% й йде в E03 (вибачаюсь за якість фото)

The problem here is that the station is located next to the bedroom. At night, according to the power outage schedule, there should be a power cut. 3-6 hours. To keep the boiler running, the reserve must be on. But it beeps.

Of course, the station can be disconnected from the network and it won't beep. But the next problem is that the station needs to automatically recharge after the electricity is restored. Running around at night/morning to switch all this is inconvenient. I also contacted technical support. Here is the first response:

Hello!
You are welcomed by Könner & Söhnen

To balance their operation, we recommend performing two full cycles: completely discharge the station and then fully charge it to 100%.
It is important to charge to full level because cell balancing occurs at the final stage of charging with very low currents.
With frequent short power outages, this process sometimes does not have time to occur, so full cycles help balance all cells and eliminate the error.
If the problem persists after two cycles — write, and we will continue diagnostics.

Sounds promising. Let's start discharging and charging.

I discharged the station for the first time to 4% and it shut down. The station was delivering 2500W. So, most likely it went into over-discharge protection. We won't count this time.

The next 3 discharges were (the last 10%) at the level of 250-500W. And the station shut down at 0%. And this did not help. The station still shows error E03. But judging by the problem itself (BMS / balancing) - 3 times might not have been enough.

I called technical support and received the following information:

3 times is not enough for balancing. There are many cells/batteries.
Just use the station and over time the error will disappear (but this error sound does not let me sleep. see next point).
To turn off the sound signal - you need to connect to the station via a wire and use a program to disable the necessary option.

They sent me a link to the software and 2 PDF files for review via Viber. The next problem arose - the software is only for Windows.

Link to the software:

https://safeguardpowersolutions.com/support/solar-monitor-software-download/

I do not have Windows and it took me a week to resolve this issue.

Let me say right away - emulators/wine/virtual machines on MacOS did not help me. Besides the software, drivers for the USB port are also needed (I couldn't manage to get them). There are nuances with architecture (intel/m), and type-c/usb adapters do not work. So it turned out easier to find a computer with Windows.

While I was looking for one - the station worked and the error disappeared on its own (the station did not discharge to zero).

However, to prevent E03 from bothering me in the middle of the night - the sound signal was still turned off in the inverter settings (BuzzForbide(only use by PV1800). I didn't change anything else. But maybe I will reduce "Grid max charger current set" as described in the recommendations provided by technical support.