Victron Energy Inverter / Charger: “VE.Bus Error 11”
danger RV inverter fault codes
What it means
Relay test fault. The unit's automatic internal ground-relay self-test failed. This is often an installation/wiring issue but can also indicate an actual relay hardware failure.
Most likely causes
- Incorrect neutral-ground bonding or AC wiring not matching local code common
- Line/neutral swapped or wrong polarity common
- Genuine internal relay failure less common
Safe checks you can do yourself
- Update the unit to the latest firmware
- Verify the neutral-to-ground connection and that wiring follows local electrical rules
- Temporarily disconnect AC-out loads to rule out a downstream wiring fault
- Check line/neutral polarity on the AC input
How to reset / clear VE.Bus Error 11
- Correct any wiring fault, then switch the unit Off and back On to re-run the relay self-test
When to call a technician
Wiring and firmware are correct but Error 11 persists, which points to a failed relay needing service/replacement.
Applies to
MultiPlus-II · EasySolar-II · Quattro-II
FAQ
What does Victron Energy Inverter / Charger code "VE.Bus Error 11" mean?
Relay test fault. The unit's automatic internal ground-relay self-test failed. This is often an installation/wiring issue but can also indicate an actual relay hardware failure.
How do I reset Victron Energy Inverter / Charger VE.Bus Error 11?
Correct any wiring fault, then switch the unit Off and back On to re-run the relay self-test
What is the most common cause of VE.Bus Error 11 on a Victron Energy Inverter / Charger?
The most likely cause is incorrect neutral-ground bonding or ac wiring not matching local code.
Related · Victron Energy inverter / charger
Sources
- VE.Bus Error Codes — Error 11 — Relay test fault (Victron Energy)
Note: Official page lists Error 11 as a failed ground-relay self-test (installation error or relay failure).
● Last verified 2026-06-29 · compiled from manufacturer documentation. Codes can vary by model year — always cross-check your unit’s manual.