Troubleshooting - AEG Protect A Series User Manual

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8. TROUBLESHOOTING

Symptom Symptom
Symptom Symptom
No LED display
on the front panel
Alarm buzzer
beeps
continuously
when AC
supply is normal.
When power
failure,
back-up time is
shorten.
Mains normal but
LED is flashing
If any abnormal situations occur that are not listed above, please stop
using the unit and contact your reseller for advice.
When replacing the batteries, use batteries with exactly same
specifications.
The battery must be replaced exclusively by qualified personnel (risk
of shock).
Do NOT replace battery by oneself. Please contact your reseller if
need.
Possible Cause Possible Cause
Possible Cause Possible Cause
1. Battery weak
2. Battery defect
3. Power switch is
not pressed
Overload of the
UPS
1. Overload of the
UPS
2. Battery voltage
is too low
3. Battery defect
due to high
temperature
operation
environment, or
improper
operation of
battery
Power cord is
loose.
Remedy Remedy
Remedy Remedy
1. Charge battery
up to 8 hours
2. Replace with
same type of
battery
3. Press the
power switch
again
Verify that the
load matches
the UPS
capability
specified in the
specification.
1. Remove some
non-critical
load
2. Charge battery
for 8 hours or
more
3. Replace with
the same type
of battery
Reconnect the
power cord.