Battery Internal Fault

What does 605 mean?

This status code indicates an internal fault within the battery system connected to the Fronius Primo GEN24 208-240 inverter. This signifies a problem such as cell imbalance or a malfunction of the Battery Management System (BMS), which can severely impact battery performance and safety.

• A faulty battery cell or module within the battery system.
• Malfunction of the Battery Management System (BMS), responsible for monitoring and balancing cells.
• Internal wiring damage or component failure within the battery enclosure.

Click steps to track your progress.

1. 1

   Check the battery system's internal status indicators or display for specific fault codes related to cell imbalance or BMS errors.

2. 2

   Consult the battery system's manual for specific troubleshooting steps related to internal faults, including diagnostic procedures.

3. 3

   De-energize the inverter and battery system, wait for 5 minutes, then re-energize. If the message persists, the battery system may require service.