Checking the function of the string fuses, 10 checking the function of the string fuses – SMA SMC 9000TL Installation User Manual

Page 77

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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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