Maintenance and Cleaning SMA Solar Technology AG
62 SMC9-11TLRP-IEN100640 Installation Guide
6. Remove the fan by pulling it slowly and carefully downwards.
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.
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 on the SMA Serviceline (contact: see Page 90).
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.
NOTICE!
Damage to the fan due to the use of compressed air.
• Do not use compressed air to clean the fan. This can damage the fan.
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