Installation Instructions
SMA Solar Technology AG Maintenance and Cleaning
Installation Guide SB11_12_17-IEN100132 35
8 Maintenance and Cleaning
Check the correct operation of the Sunny Boy at regular intervals. Impurities such as dust or pollen
can cause heat accumulation that can lead to yield losses. Also check the Sunny Boy and the cables
for visible external damage. Undertake repairs if necessary.
8.1 Check the Electronic Solar Switch for wear
Check the Electronic Solar Switch for wear before plugging it in.
Result Action
☑ The metal tongues inside the connector
have no damage and no discoloration.
1. Attach the Electronic Solar Switch handle.
2. Commission the Sunny Boy.
☑ The metal tongues inside the connector
have a brown discoloration or are burned
off.
The Electronic Solar Switch can no longer reliably
disconnect the DC side.
1. Replace the Electronic Solar Switch handle
before attaching it again (order number see
section 12 "Accessories" (page46).
2. Commission the Sunny Boy.