Victron Error 26 fault: Internal error
Keep an eye on it
Urgency: medium
What it means
The unit reported an internal error. A single full restart sometimes clears it; if it returns, an installer must check the unit.
Likely causes
- Internal software or hardware problem
What you can safely check
- Do one full restart using the unit's on/off switch.
- If it keeps coming back, stop and call a qualified installer.
When to call a pro
If it doesn't clear on its own, happens often, or comes with burning smells, heat or noise, call a qualified installer.
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.