48
Customer service IMPORTANT! Contact your Fronius dealer or a Fronius-trained service technician if
- an error appears frequently or all the time
- an error appears that is not listed in the tables
Operation in
dusty environ-
ments
When operating the inverter in extremely dusty environments:
when necessary, clean the cooling elements and fan on the back of the inverter as well as
the air intakes at the mounting bracket using clean compressed air.
757
Hardware error in the Real
Time Clock module
Error message is shown on the
display; the inverter is not feed-
ing any energy into the grid
If the status code is displayed
all the time: notify a Fronius-
trained service engineer
758
Internal error: Real Time Clock
module is in emergency mode
Time may be inaccurate or lost
(feeding energy into the grid
normal)
766
Emergency power derating
has been activated (max. 750
W)
Error message is shown on the
display
Code Description Behaviour Remedy
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