Victron 700 BMS troubleshooting help

F

Ferg

New member
Just replaced my house batteries, and finally got around to trying to address the issue of faulty voltage readings on the display (3-4v). Every other function works perfectly.

Victron has no factory service hotline, so I’ve googled it, and did everything suggested to no avail.

What I’ve one so far -
Verified full voltage on the bank
Cleaned every connection
Verified 13.2v from battery to shunt
Replaced the fuse and holder sending power to the head end.
Sprayed contact cleaner where I could

Still no luck. The important stuff still works - SOC, current draw, etc, so this is a small problem, but it bugs me.

Any other suggestions?

Thanks,
Ferg
 
Ferg":3jzrd0qv said:
Just replaced my house batteries, and finally got around to trying to address the issue of faulty voltage readings on the display (3-4v). Every other function works perfectly.

Victron has no factory service hotline, so I’ve googled it, and did everything suggested to no avail.

What I’ve one so far -
Verified full voltage on the bank
Cleaned every connection
Verified 13.2v from battery to shunt
Replaced the fuse and holder sending power to the head end.
Sprayed contact cleaner where I could

Still no luck. The important stuff still works - SOC, current draw, etc, so this is a small problem, but it bugs me.

Any other suggestions?

Thanks,
Ferg
Click to expand...

Ohm out the cable from the shunt to the display. I think it is just an RJ45 or RJ11 cable.
 
To follow up on ssobol's good suggestion is to swap out the cable. For any of the functions to read, the 12 volt lead to the battery has to be connected properly. Either there is a defect in the shunt, cable or monitor. It is pretty much plug and play.

Did you have it working previously?
 
Agree Bob, I suspect it’s the shunt or the cable. The shunt and cable are available, and not too expensive. I’ll give them a shot
 
The cable is a 6 conductor cable so it’s an RJ12. I would try resetting the monitor back to factory and do any updates.
 
Problem solved -

Replaced the PCB board that mounts onto the shunt

Thanks for your suggestions SoBELLE, Dr. Bob and Jody Kidd
 
It took a bit of time to find, but this is where I found it. Price was ~$20.00.


About Us
Customer Support
1-866-735-5926
BOE Marine
325 Cleat St
Stevensville, Maryland 21666,

Two minutes to install
 
Back
Top