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SMA Technologie AG Maintenance and Cleaning
Installation Guide SMC50A_60A-IEN073320 Page 69
12.1.2 Checking the Fans
If necessary, there are two different ways to check the fans are functional:
• Set the "Fan Test" parameter to "1" in the installer mode
(using Sunny Data, Sunny Data Control, the Sunny Boy Control data logger or
Sunny WebBox), or
• place the jumper on the controller board (the jumper required to check the fans is
included in the Sunny Mini Central accessories kit).
Check the fans as follows:
Step Instruction
Setting the Parameter
1 Request the installer password on the SMA Serviceline (contact: see Page
92).
2 Set the "Fan Test" parameter to "1" in the installer mode (using Sunny Data,
Sunny Data Control, the Sunny Boy Control data logger or Sunny WebBox).
3 Check the fans' air-flow. The Sunny Mini Central 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.