Communication error between battery controller and battery modules

What does 983 mean?

A communication error exists within the Fronius Solar Battery system, specifically between its internal battery controller and the individual battery modules. This prevents battery operation, but grid feed-in resumes.

• Loose or damaged internal wiring within the Fronius Solar Battery
• Incorrect number or configuration of individual battery modules
• Faulty or missing termination plug

Click steps to track your progress.

1. 1

   Check the wiring within the Fronius Solar Battery enclosure

2. 2

   Verify the correct number and connection of individual battery modules

3. 3

   Inspect the termination plug for proper installation and integrity