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. 1

    If this status code keeps recurring, contact your system engineer for diagnosis.

Browse all codes in this manual (60)
Verified technical data. Last updated: March 2026

Related Faults

Source: Fronius Symo Advanced Manual