SMA WB 3000-21 Installation - Manual (Page 70)

11 Troubleshooting SMA Solar Technology AG
70 WB3-5TL-21-IA-en-10 Installation Manual
11.3 Cleaning the Inverter
• If the cooling fins on the rear of the enclosure are dirty, clean them with a soft brush.
• If the air ducts on the top of the inverter are dirty, clean them with a soft brush.
8101 to
8104 Comm. disturbed The cause must be determined by the SMA Service Line.
Corrective measures:
• Contact the SMA Service Line.
9002 Inst. 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 locked. The parameters cannot be
changed.
Corrective measures:
• Unlock the parameters with the SMA Grid Guard
code.
9005 Waiting for main CPU.
Ensure DC supply DC supply is insufficient. The inverter was not able to
adopt the parameter change.
Corrective measures:
• Ensure that the rectifier is correctly connected (see
Section 6.4.3).
• Ensure that the small wind turbine system provides
sufficient DC voltage in windy conditions.
9007 Abort self-test The self-test was stopped due to DC voltage being too
low.
Corrective measures:
• Wait for sufficient wind.
•
Damage to the display due to the use of cleaning agents
• If the inverter is dirty, clean the enclosure lid, the display, and the LEDs using only clean
water and a cloth.
Event
number Display message Cause and corrective measures