Maintenance and Cleaning SMA Solar Technology AG
58 SMC6-8TL-IEN101040 Installation Guide
6. Remove the fan by pulling it slowly and carefully downward.
7. Unlock and remove the plug.
The fan cables are long enough that you can lift the fans far enough out to disconnect the
internal plug in the inverter.
8. Remove the fan.
9. Clean the fan with a soft brush, a paint brush, or a damp cloth.
10. After cleaning, assemble everything in reverse order.
☑ The fans are cleaned.
11. Check the function of the fans as described in the following section.
8.1.2 Checking the Fans
You can check that the fans are working in 2 ways:
• Set the "Fan-Test" parameter to "1" in the installer mode using Sunny Data Control,
Sunny Explorer or Sunny WebBox.
or
• Plug the provided jumper into the system control board.
Setting Parameters
1. Request the installer password from the SMA Serviceline (contact: see page 85).
2. Set the "Fan-Test" parameter to "1" in the installer mode.
3. Check the fans' air flow.
The inverter sucks air in from underneath and then blows it back out on the upper sides. Listen
for any unusual noise, which could indicate incorrect installation or that the fans are faulty.
4. After checking the fans, set the "Fan-Test" parameter back to 0.
☑ The test of the fans has been completed.
Plugging the Jumper
The inverter recognizes the jumper only after the system has been restarted (i.e. all LEDs must have
gone out before a restart).
1. Open the inverter as described in section 7.2”Opening the Inverter” (page52).
2. Plug the provided jumper in the slot on the system control board as shown below.
NOTICE!
Damage to the fan through the use of pressurized air.
• Do not use pressurized air to clean the fan. This can damage the fan.
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