302
Overcurrent (DC)
Fronius · Symo Advanced Manual
What does 302 mean?
The inverter has detected an excessive current flow on the DC input side from the solar modules. This results in a short-term interruption of energy feeding, and the inverter will then attempt to resume its start-up routine.
Common Causes
- Short circuit or ground fault in the DC solar module array
- Internal inverter fault in the DC input stage
Repair Steps & Checklist
Click steps to track your progress.
- 1
If this status code keeps recurring, contact your system engineer for diagnosis.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fronius Symo Advanced Manual