Red LED flashing — Communication with System Manager failed

What does Red LED flashing (0.25s on/off/on, 1.25s off) mean?

This LED pattern indicates a warning: communication with the System Manager has failed. The inverter continues to operate but with restricted functions, possibly using a fallback power level. A specific event message should also appear on the user interface.

• Failure in the communication link with the System Manager.

Click steps to track your progress.

1. 1

   Check the user interface of the inverter or System Manager for a specific event message and associated event number (see Section 11.1, page 88).

2. 2

   Verify the physical network connection and cabling between the inverter and the System Manager.

3. 3

   Ensure the System Manager is powered on and functioning correctly.

4. 4

   Consult the System Manager's manual for further troubleshooting steps.

5. 5

   If the problem continues, contact service.