Troubleshooting - AEG ST 500 Mode D'emploi

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TrOuBleSHOOTIng

If the led (8, 18) lights up red there is a malfunction. To prevent damage. the device will automatically switch off ab
(also see "Technical features").
Problem
unit does not work.
low voltage alarm is always on.
low output voltage.
TV operation and / or audio systems
and / or external appliances
▪
Snow image
▪
image not steady
▪
Humming, booming and whirring
sound audible
Possible cause
Battery voltage lower than 10 V.
The power demand of the connected
device is too high.
unit operation has been interrupted
by one of its protection systems.
Voltage or power are not sufficient
to power the inverter.
Input voltage too low - low voltage-
protection.
polarity, incorrect connections, short-
circuit protection.
rated power above max. rated
power - overload protection.
TV interference.
Remedy
replace or charge the battery.
disconnect external device. The
maximum power requirement should
not exceed the rated power of the
voltage converter.
See the relevant chapter ( Technical
Features).
Check connections and verify whe-
ther is a problem caused by cables
(not clean or damaged) or the clips.
Switch off the power inverter imme-
diately.
Check connection and recharge
battery.
If voltage is higher than 11 V restart
the power inverter.
Switch off the power inverter
immediately. disconnect all external
appliances. Check all connections,
cables and external appliances.
adjust where necessary.
reduce the total power of connected
devices to the max. power rating.
place power inverter as far away
from TV set as possible.
Check aerial connection and setting.
place aerial cable away from power
inverter. use a shielded aerial cable.
The modified sine wave of the power
inverter cannot be filtered sufficiently
by the connected external appliance.
disconnect all cables immediately.
The only available solution is to use
a more modern external appliance
or one with a higher rating with
adequate filtering capability.