SMA Solar Technology AG
Maintenance and Cleaning
User Manual
SB_SMC_Schueco-BEN093730
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5 Maintenance and Cleaning
Check the correct operation of the inverter at regular intervals. Impurities such as dust or pollen can
cause heat accumulation that can lead to yield losses. Also check the inverters and the cables for
visible external damage. Have repairs carried out if necessary.
5.1 Checking Heat Dissipation
5.1.1 Cleaning the Cooling Fins
Applies to Sunny Boy models SB 1100, SB 1200, SB 1700, SB 2100TL, SB 2500, SB 3000
and SB 3300TLHC
The heat dissipation of the Sunny Boy can be restricted if the cooling fins are dirty.
• Clean the cooling fins with a suitable, soft brush.
5.1.2 Cleaning the Fans
Applies to Sunny Boy models SB 3300, SB 3800 and Sunny Mini Central
If the fan guards are only covered in loose dust, they can be cleaned with a vacuum cleaner. If
vacuum cleaning does not produce a satisfactory result, please contact your installer, who will
dismantle the fans for cleaning.
• The fan cleaning procedure is described in the respective installation guide and may only be
carried out by a qualified personnel.
5.2 Cleaning the Display
If the display or the status LEDs are so soiled that they can no longer be read, they should be cleaned
with a damp cloth.
• Never use solvents, abrasives or corrosive materials for cleaning!
CAUTION!
Danger of burn injuries due to hot enclosure parts!
• Do not touch the inverter's enclosure during operation.
