Installation Manual SMC9-11TLRP-IA-en-51 77
SMA Solar Technology AG 10 Troubleshooting
If the red LED is flashing and the inverter displays the message DC fuse, at least one of the string fuses
may have tripped or be defective. Each string fuse is assigned to one string.
Check the function of each string fuse as described below.
1. Disconnect the inverter from all voltage sources (see section 9).
10.10 Checking the Function of the String Fuses
Figure 16: Assignment of the string fuses to the strings
2. Remove the string fuse with the fuse extractor
from the fuse holder.
3. Remove the string fuse from the fuse extractor.
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