50
ECTIVE SI & TSI Series
Symptom
Possible cause
Solution
acoustic signal sounds
3x and red LED flashes
total undervoltage
(see table)
1. check charging status
of battery, charge if
necessary
2. check compatibility of
battery cable, use higher
cross section if neces-
sary
3. check if conductive parts
(cables, pole terminals,
lugs) are damaged
acoustic signal sounds
4x and red LED flashes
input voltage too high
(see table)
1. check voltage
2. check charging voltage
of battery charger
3. check if there are un-
wanted voltage sources
acoustic signal sounds 5x
and red LED flashes
inverter overheated
check ventilation, if
damaged, call support
check if ventilations slits
are free
check if ambient air is cool
enough
reduce power
red LED flashes
permanently
maximum short-term
power reached
switch off inverter
reduce power
cool down inverter
