SMA SUNNY BOY 1.5 - Page 69

Event number Message, cause and corrective measures
3901 to 3902
Waiting for DC start conditions > Start cond. not met
The feed-in conditions for the utility grid are not yet fulfilled.
Corrective measures:
• Ensure that the PV array is not covered by snow or otherwise shaded.
• Wait for higher irradiation.
• If this message is displayed frequently in the morning, increase the
voltage limit for starting grid feed-in. Change the parameter Critical
voltage to start feed-in.
• If this message is displayed frequently with medium irradiation, ensure
that the PV array is correctly rated.
6001 to 6438
Self diagnosis > Interference device
The cause must be determined by the SMAServiceLine.
Corrective measures:
• Contact the Service (see Section17 "Contact", page91).
6501 to 6509
Self-diagnosis > Overtemperature
The inverter has switched off due to excessive temperature.
Corrective measures:
• Clean the cooling fins on the rear of the enclosure and the air ducts on
the top using a soft brush.
• Ensure that the inverter has sufficient ventilation.
• Ensure that the ambient temperature 40°C has not been exceeded.
• Ensure that the inverter is not exposed to direct solar irradiation.
6512
Minimum operating temperature not reached
The inverter will only recommence feeding into the utility grid once the temper-
ature has reached at least -25°C.
6603to 6604
Self-diagnosis > Overload
The cause must be determined by the Service.
Corrective measures:
• Contact the Service (see Section17 "Contact", page91).
6701to 6702
Communication disturbed
Error in the communication processor, the inverter continues feeding in, how-
ever. The cause must be determined by the Service.
Corrective measures:
• If this message is displayed frequently, contact the Service (see
Section17 "Contact", page91).
12 Troubleshooting
SMA Solar Technology AG
Operating Manual 69SB15-25-1VL-40-BE-en-11