SMA 20000TL Service Manual - Manual (Page 18)

Event number Message, cause and corrective measures
6512 Minimum operating temperature not reached
The inverter will only recommence grid feed-in once the temperature has
reached at least −25°C.
6603 … 6604 Self-diagnosis > Overload
The cause must be determined by the SMA Service Line.
Corrective measures:
• Contact the SMA Service Line.
6606 Interference device
The cause must be determined by the SMA Service Line.
Corrective measures:
• Contact the SMA Service Line.
6701 … 6702 Communication disturbed
The cause must be determined by the SMA Service Line.
Corrective measures:
• Contact the SMA Service Line.
6801 … 6802 Self-diagnosis > Input A defective
The cause must be determined by the SMA Service Line.
Corrective measures:
• Contact the SMA Service Line.
6901 … 6902 Self-diagnosis > Input B defective
The cause must be determined by the SMA Service Line.
Corrective measures:
• Contact the SMA Service Line.
7001 … 7002 Sensor fault fan permanently on
The cause must be determined by the SMA Service Line.
Corrective measures:
• Contact the SMA Service Line.
7101 SD card defective
The SD memory card is not formatted.
Corrective measures:
• Re-format the SD memory card.
• Re-save the files to the SD memory card.
5 Troubleshooting SMA Solar Technology AG
Service Manual for Installers STP20-25TL-SG-en-11 18