11 Troubleshooting
SMA Solar Technology AG
Operating manualSTP50-4x-BE-en-23104
Event number Message, cause and corrective measures
7619
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 Wi-Fi connection: Improve the Wi-Fi connection quality (e.g., via Wi-Fi
repeater) or connect the inverter with the DHCP server (router) via
Ethernet.
7622
No communication with the I/O module
This event is displayed during a device-internal communication error with the
SMAI/OModule. The inverter will disconnect from the utility grid for safety
reasons.
7702
Device fault
The cause must be determined by the Service.
Corrective measures:
• Contact the Service.
7801
Fault overvoltage protector
One or more surge arresters have tripped or one or more surge arresters are
not inserted correctly.
Corrective measures:
• Ensure that the surge arrester is inserted correctly.
• If surge arresters have tripped, replace the tripped surge arresters with
new surge arresters.
8003
Active power limit Temperature
The inverter has reduced its power output for more than 10 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 +35°C has not been exceeded.
• Ensure that the inverter is not exposed to direct solar irradiation.
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