Victron Error 8 fault: Ground relay test failed
Call a qualified installer
Urgency: high
What it means
On MultiPlus-II and EasySolar-II units, the earth relay failed its self-test. This is a safety function that an installer must check.
Likely causes
- Earth relay fault
- Earthing problem
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.