6 Troubleshooting
SMA Solar Technology AG
User Manual STP33-62-US-41-BA-en-11 55
Event number Message, cause and corrective measures
9003
Grid parameters locked
Changes to the grid parameters are now blocked. In order to be able to make
changes to the grid parameters, from now on you must log in using the SMA
Grid Guard code.
9005
Changing of grid parameters not possible > Ensure DC supply
This error can have the following causes:
• The parameters to be changed are protected.
• The DC voltage at the DC input is not sufficient to run the main CPU.
Corrective measures:
• Enter the SMA Grid Guard code.
• Ensure that at least the DC start voltage is available (green LED is
flashing, pulsing or glowing).
9007
Abort self-test
The self-test (Italy only) was terminated.
Corrective measures:
• Ensure that the AC connection is correct.
• Restart the self-test.
9033
Rapid Shutdown was triggered
The inverter detected the triggering of a Rapid Shutdown. The AC side of the
inverter was disconnected.
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