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Mr.Orange avatar image
Mr.Orange asked

Multiplus Compact 12/2000/80 Not Seeing DC voltage from battery & Not turning on.

My Victron Multiplus Compact 12/2000/80 isn't outputting AC voltage any longer. I updated firmware to the newest (2708492) and it no longer outputs AC from the inverter or passes through AC power from AC In.

I can connect to it using Ve.Configure and the MK3 Device. The display shows AC input power but no AC output or DC voltage. I have reset all settings back to factory.

When I turn on the inverter all three lights flash then go off. If I cycle dip switch 8 to store the dip switch settings it will also flash all three lights. It is just outside of the warranty. So, what should I do?


Here is the list of things I have done.

Reinstalled Firmware (Most current and previous firmware) using ve.flash. I have tried reverting to older firmware but still have same not working inverter.

I have used to different MK3 devices.

Check and replaced the Mega Fuse. I have also checked the barrel fuse next to the transformer.

I have used Two 12V batteries and 12v power supply.

I have checked all the connections (ribbon cables and temp cables)

The Dip switches are all in default position

I have checked the PCB board and couldn't find any damaged or distorted component.



Here are some pictures. When I took these pictures, the inverter was connected to a power supply outputting 13.4 volts DC. AC in was also connected to 125V AC.

1642876511046.png

pxl-20220122-181858168.jpgpxl-20220122-181907306.jpgpxl-20220122-182918069.jpgpxl-20220122-182029338.jpgpxl-20220122-182930948.jpg

1642876700499.png


firmware update
pxl-20220122-181858168.jpg (2.7 MiB)
pxl-20220122-181907306.jpg (2.7 MiB)
pxl-20220122-182029338.jpg (2.5 MiB)
pxl-20220122-182918069.jpg (2.4 MiB)
pxl-20220122-182930948.jpg (2.7 MiB)
1642876511046.png (109.3 KiB)
1642876700499.png (31.1 KiB)
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Matthias Lange - DE avatar image Matthias Lange - DE ♦ commented ·
The Sticker above the DIP switches says HQ1918...

If this is the original PCB then the unit is produced in week 18 in 2019.
You have 5 years warranty.


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2 Answers
Mike Dorsett avatar image
Mike Dorsett answered ·

If you can communicate with Mk3 or Mk2, then try using VE system configure to make sure that the unit is set to unconfigured, then configure as stand alone single phase. This clears some registers that are not reset for factory default or new firmware. Seems like the unit may be looking for a master or slave on the VE bus.

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Mr.Orange avatar image Mr.Orange commented ·

Thanks Mike. I went and used VE. bus Quick config and cleared all settings and set to stand-alone unit. I also selected factory reset settings in VE.config.


Still doesn't show Dc voltage in ve.config or no AC output.

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faizal avatar image
faizal answered ·

Hi Mr Orange. Did you find a solution here. My unit was working fine and then i was in the middle of a parallel connection and then backed out. Now it also doesnt see any DC or AC voltage.

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