Issue:

Persistent FB120 and F120 alarms are present on a solar canopy inverter connected to a 48V battery module, even after a firmware update and system restart.

Cause:

information not provided in the case

Resolution:

• Authenticate and log in to the inverter system.
• Identify the inverter model to ensure the correct firmware and procedure are used.
• Run a remote test on the inverter.
• Apply the appropriate firmware version to the inverter.