iTrust UH11-0100L - Page 56

A. Allow the battery to
charge for more than 8
hours when the AC
mains is normal, and
then re-test the
discharge time;
B. The battery needs
replacement, please
contact the distributor.
A. The battery is not fully
charged;
B. The battery is not able
to hold a full charge due
to age.
The UPS has
reduced battery time.
9
Contact the distributor
for charger
replacement/maintenanc
e.
Charger fault
The fault indicator
shines, and the LCD
displays “CHARGER
FAIL”.
8
A. Check whether the
external battery switch is
turned on and its lead is
properly connected;
B. Check whether the
battery is reversely
connected;
C. Contact the distributor
for battery replacement;
A. The external battery
switch is turned off, or its
lead is not properly
connected;
B. Battery reverse
connection;
C. Battery damaged;
The fault indicator
shines and the LCD
displays “BATTERY
FAIL”.
7
Disconnect some loads
from the UPS.
Overload.
The buzzer beeps
every 0.5 second,
and the LCD
displays
“OVERLOAD”
6
ActionPossible CauseAlarm or Condition
Serial
No.
44 Chapter 5 Troubleshooting
E1-20010916-C-1.0