HW-Signal — Internal measurement fault or hardware defect

What does HW-Signal mean?

An internal measurement fault or a hardware defect has been detected within the inverter. This indicates a problem with the inverter's internal components, which can affect its functionality.

• Internal measurement fault.
• Hardware defect.

Click steps to track your progress.

1. 1

   If this problem recurs, contact your installer for a diagnostic check.

2. 2

   If the issue persists, contact the SMA Serviceline for further assistance.

3. 3

   Record the exact message displayed as it can help technicians in troubleshooting.