Victron Error 11 fault: Relay test fault
Call a qualified installer
Urgency: high
What it means
The unit's relay self-test failed, often because of a wiring or earthing problem. It needs an installer.
Likely causes
- Wiring problem
- Earthing problem
- Faulty relay
Don't try to fix this yourself
When to call a pro
Call a qualified installer now. Switch off heavy loads and don't try to repair anything yourself.
Solar systems carry dangerous voltages. Only do the safe checks listed. If unsure, call a pro.
Source: Victron Energy – VE.Bus Error Codes (paraphrased)
Victron advises that this work be done by trained professionals.