SMA Solar Technology AG Troubleshooting
Technical Description SI5048-TB-TEN110340 209
W872 1 Battery overvoltage Sunny Island Charger 3
W873 1 Overvoltage PV generator Sunny Island Charger 3
W874 1 No PV voltage or short-circuit on Sunny Island Charger 3
W875 1 Sensor error (or undertemperature) on Sunny Island Charger 3
W876 1 Overtemperature Sunny Island Charger 3
W877 1 No communication with Sunny Island Charger 3 for more than 24 h
W881 1 Pole of battery connection is reversed or short-circuit on the
Sunny Island Charger 4
W882 1 Battery overvoltage Sunny Island Charger 4
W883 1 Overvoltage PV generator Sunny Island Charger 4
W884 1 No PV voltage or short-circuit on Sunny Island Charger 4
W885 1 Sensor error (or undertemperature) on Sunny Island Charger 4
W886 1 Overtemperature Sunny Island Charger 4
W887 1 No communication with Sunny Island Charger 4 for more than 24 h
W890 2 Fault at the external measuring point of the Multicluster Box
W891 2 Fault at the external measuring point of the Multicluster Box slave 1
W892 2 Fault at the external measuring point of the Multicluster Box slave 2
Display no. Level Description
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