Maintenance and Cleaning SMA Solar Technology AG
50 WB33_38-IEN101830 Installation Guide
8.1.3 Cleaning the Air Grills
There are air grills on either side of the inverter. The inverter sucks air in from underneath through the
fan and blows it out again on the upper left side via the air grills. For optimal heat dissipation of the
inverter, you only have to clean the left air grill.
Procedure
1. Remove the left air grill.
Insert your finger in the space between the air grill
and the upper part of the enclosure and remove the
air grill to the side.
2. Clean the air grill with a soft brush, a paint brush,
or pressurized air.
3. Re-attach the air grill to the inverter.
To help you identify the sides, the air grills are
marked with "links/left" or "rechts/right" on the
inside.
☑ The air grills are cleaned.
NOTICE!
Risk of damage to the inverter through intrusion of insects.
• The air grills must not be removed permanently, because otherwise the device is not
protected against the entrance of insects.
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