SMA SUNNY BOY 3.8-US User Manual page 40

8 Troubleshooting
Event number
7355
7356
7619
8003
46 SB30-77-1SP-US-40-BA-en-11
Message, cause and corrective measures
Update WebUI
The inverter is updating the inverter user interface.
Update of the WebUI not successful
The update of the inverter user interface failed.
Corrective measures:
• Retry update.
• If this message is displayed again, contact the Service (see Section 11
"Contact", page 67).
Communication fault with meter unit > Check communication to meter
The inverter is not receiving any data from the energy meter.
Corrective measures:
• Ensure that the energy meter is correctly integrated into the same network
as the inverter (see energy meter manual).
• For WLAN connection, improve the WLAN connection quality (e.g. via
SMA Antenna Extension Kit) or connect the inverter with the DHCP server
(router) via Ethernet.
Active power limited derating
The inverter has reduced its power output for more than ten minutes due to ex-
cessive 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 +45°C (113°F) has not been
exceeded.
• Ensure that the inverter is not exposed to direct solar irradiation.
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User Manual