SMA SB 2800i - Manual (Page 29)

Operating Instructions Service and Maintenance
SB2800i-11:FE0504 SMA Regelsysteme GmbH 27
4 Service and Maintenance
To obtain optimum yield the plant operator should examine the
performance with respect to different insolation whether the LEDs
of the Sunny Boy 2800i signals plausible normal operation (see
chapter 3.3.4 „ Description of Operating States” (page 14). Of
course you can also check this with one of the optional
communication devices.
It is only necessary to clean the Sunny Boy if heat dissipation is
disturbed by dirt particles on the fins of the heatsink or in the
space between the inverter and the wall. Carefully remove the dirt
with an appropriate soft brush.
If the status LEDs are dirty and no longer clearly visible, remove
the dirt with a moist cloth. Solving agents, abrasives or corrosives
may not be used for cleaning!