9 Troubleshooting
SMA America, LLC
74
SB3-5TLUS22-IA-en-10
Installation Manual
8801 to 8803
No display
This error message can have three causes, but
the inverter continues to feed into the power
distribution grid.
The ambient temperature is lower than ‒25°C.
The display switched off for protection.
The inverter cannot identify the display type.
No display is connected to the inverter or the
connection is defective.
Corrective measures:
• If the display switched off due to the
ambient temperature being too low, wait
until the ambient temperature is above
‒25°C.
• If the ambient temperature is above
‒25°C, contact the SMA Service Line.
9002
Grid Guard code
invalid
The SMA Grid Guard code entered is incorrect.
The parameters are still protected and cannot be
changed.
Corrective measures:
• Enter the correct SMA Grid Guard code.
9003
Grid param. locked
The parameters are now locked. The parameters
cannot be changed.
Corrective measures:
• Unlock the parameters with the
SMA Grid Guard code.
Event number
Display message
Cause and corrective measures
