986
Overtemperature at Fronius Solar Battery
Fronius · Solar Energy
What does 986 mean?
The Fronius Solar Battery has tripped due to an overtemperature condition. Battery operation is no longer possible, but grid feed-in resumes.
Common Causes
- Excessively high ambient temperature around the Fronius Solar Battery
- Blocked ventilation or cooling issues within the battery enclosure
Repair Steps & Checklist
Click steps to track your progress.
- 1
Reduce the ambient temperature around the Fronius Solar Battery
- 2
Switch off the Fronius Solar Battery, allow it to cool down for an appropriate amount of time, then activate it again
Verified technical data. Last updated: March 2026
Related Faults
Source: Fronius Solar Energy