Troubleshooting/Problem Solving SMA Solar Technology AG
188 SI2012_2224-TEN082311 Technical Description
18.6 Error Categories
The Sunny Island distinguishes between five different levels of failures, each requiring different user
interaction:
18.7 Warnings and Failure messages
The meanings of the faults and warnings displayed by the Sunny Island are described in the
following table:
Level Classification 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 Fault 1 Malfunction Disturbance that only can be detected in operation, device is
deactivated. Restart is possible immediately (Autostart).
3 Fault 2 Malfunction Disturbance that can be detected in Standby, device is
deactivated. Restart (Autostart) is only possible is identified as
being gone.
4 Failure Failure Device failure, device is deactivated. User interaction required
(troubleshooting, confirmation, manual restart).
5 Device defective Defect Device is defective, is deactivated and does not restart. Operation
permanently blocked. Device must be exchanged.
Display
number
Level Description
Category INV
F117 2 AC current limitation (short-circuit control active for too long)
F118 2 AC current limitation (short-circuit control active for too long) on slave 1
F119 2 AC current limitation (short-circuit control active for too long) on slave 2
F121 3 inverter overvoltage
F122 3 inverter overvoltage on slave 1
F123 3 inverter overvoltage on slave 2
F150 3 Overtemperature (inverter)
W151 1 Overheating (inverter) slave 1
W152 1 Overheating (inverter) slave 2
F154 3 Overtemperature (voltage converter)
W155 1 Overheating (voltage converter) slave 1
W156 1 Overheating (voltage converter) slave 2
Category BAT
F206 3 battery overtemperature
F208 3 battery overvoltage (internal limit for cell voltage)
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