Victron Multiplus Compact 12 v/800W/35A ( South Africa)

DIY
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1

Morning all, please assist. I have an older model Multiplus unit as above which does not switch over to charger anymore while on 220 volt ( South Africa). It is used in my Campervan. It seems to try but defaults to “Alarm”. I have been quoted some tidy sum of money to 1st do a reprogram, and if still not working to give me an assessment to repair, .. also a tidy sum.

I am wondering if I can download some software from the net and do my own reprogramming under supervision?..

Beside that however, I would be very keen to understand what could be the problem. I have removed the covers from the unit and taken photographs of the inside only to find everything looks fine / no burn etc…

Thanks in anticipation folks

2

@Rond58
Do you have a gx device on the inverter? If you do it can be done over the vrm

If not you will need an mk3 to usb adaptor.

3

Hi and thanks for that . sadly no gx device. Please explain or show a pic of a mk3 to usb adaptor?.

Thanks again for your response

4

There is also a newer version with usb-3 plug.

1 Like
5

If you have a picture of the onboard chip and the serial number (just the first 4 or 5 letter/numbers) we can help further to let you know if it can be updated

6

Hi there and thanks for your response. I hope is is the correct info > 2603254. Powerpack IRF2204PBF

Kind regards for now

Ron

7

Excellent you have the 26 processor. So it is able to be updated to the latest firmware.
If you are past 2603430 (firmware 430) you can do it youself with the mk3 adaptor and victron connect. I am hoping the previous owner did at least one or two updates.
Otherwise you will need to do it old school with ve flash.

Let me know when you have your mk3.