SMA Solar Technology America LLC 20 Troubleshooting
Operating Manual SI4548-6048-US-BE-en-21 209
20.7 Failure Categories
The Sunny Island distinguishes between five different levels of errors, each requiring different user
interaction:
20.8 Warnings and Error Messages
The meanings of the warnings and errors displayed by the Sunny Island are described in the following
table:
E853 Sunny Island Charger #3 detected
E854 Sunny Island Charger #4 detected
E901 SOC recalibration started
E902 SOC recalibration stopped
E903 Derating started
E904 Derating stopped
E905 Preventive self-disconnection to protect the battery from deep discharge
Level Designation Display Meaning
1 Warning Warning Warning, device continues to run. There is an explicit
information on the Home Screen that a warning was
recorded.
2 Malfunction 1 Malfunction Failure that can only be detected during operation.
Device switches off. Device can be restarted
immediately (autostart).
3 Malfunction 2 Malfunction Failure that can also be detected in standby mode.
Device switches off. The device can only be restarted
(autostart) once the system detects that the
malfunction has ended.
4 Error Failure Device error, device switches off. User interaction
required (troubleshooting, confirmation, manual
restart)
5 Device defect Defect Device is defect. Device switches off and does not
switch on again. Permanent operation inhibition.
Device must be replaced.
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