Hardware fault

What does 1 mean?

This fault indicates a general internal hardware malfunction within the device. This type of fault typically implies a component failure or significant internal system anomaly, preventing normal operation.

• Internal component failure
• System board malfunction

Click steps to track your progress.

1. 1

   Measure DC input voltage and current from the PV array at the inverter's DC terminals, comparing against specified operational ranges.

2. 2

   Inspect all external AC and DC wiring connections for proper seating, secure terminals, and signs of damage or corrosion.

3. 3

   Check the inverter's ventilation openings and cooling fins for obstructions or excessive dust buildup to ensure adequate airflow.

4. 4

   Verify the inverter's internal display or diagnostic interface for more specific fault sub-codes or system warnings.