Vaillant EcoCompact VSC 126/2 with replaced PCB not being detected correctly

[jnasholm]

I have connected an EBUS to WiFi adapter module to my Vaillant EcoCompact VSC 126/2 and added to Home Assistant using the eBUSd add-on. A few years back the PCB in the boiler was replaced by a technician from the gas company. Most sensors appear to work properly and setting new values for writable parameters also works. However digging in deeper revealed that ebusd does not use the correct CSV file for the boilers controller, just for the connected VRC 430 controller. From ebusd info:

address 08: slave #11, scanned "MF=Vaillant;ID=BAI00;SW=0518;HW=7401", loaded "vaillant/bai.308523.inc" ([HW=7401]), "vaillant/08.bai.csv"
address 15: slave #2, scanned "MF=Vaillant;ID=43000;SW=0215;HW=2002", loaded "vaillant/15.430.csv"

The boiler model number is 0010003860 and 08.bai.csv should therefore load bai.0010003857.inc instead. Looking at ebusd scan result:

08;Vaillant;BAI00;0518;7401;??;??;??;??????????;????;??????;??
15;Vaillant;43000;0215;2002;21;10;01;0020028516;0907;005810;N2

Apparently the new PCB does not have the correct information regarding model number, etc. I would like the first line to contain something more like this (created from the serial number label on the boiler):

08;Vaillant; ... ;21;10;03;0010003860;3100;005014;N6

Does anyone know how to set this correctly with the ebusd hex command?

Any method to explicitly load the correct include file by configuration is also appreciated.

Similar issue discussed here

[jnasholm]

Giving up on mqtt and auto-discovery since the boiler PCB is not detected correctly. Up and running anyway with the following workaround.

1. Installed ebusd on a computer (virtual machine running Alpine Linux).
2. Configured the connection parameters on the computer for ebusd running as an integration on the Home Assistant server.
3. Ran the ebusd command line script readall.sh to get a full list of sensors per circuit.
4. Tested to read and write sensor values with ebusctl from the computer. Worked just fine.
5. Installed the custom component Home-Assistant-ebus-access by Berlenz.
6. Configured the custom component and the relevant sensors according to Berlenz documentation.
7. Cloned the ebusd configuration files to the Home Assistant server, ebusd-configuration by jonh30.
8. Changed the code in ebusd-configuration/vaillant/08.bai.csv to just load bai.0010003857.inc.
9. Restarted Home Assistant.

ebusd-configuration/vaillant/08.bai.csv

# type (r[1-9];w;u),circuit,name,[comment],[QQ]
#,BAI00,generic file for all BAI types,,
*[PROD],scan,id,,product
*[HW],scan,,,HW
# load specific product file for Vaillant VSC 126/2 C 140-H with replaced PCB
!load,bai.0010003857.inc,,,
!include,hcmode.inc,,,

Will contact the local Vaillant service representative to inquire about getting the PCB parameters set correctly.