A. Remove the substances
blocking the vent, or widen
the distance from the wall,
restart the UPS after it cools
down.
B. Check whether the rear
panel fan is blocked from
running or damaged
(the fan
stops running)
.
Internal
overtemperature
The buzzer beeps, the fault
indicator shines, and the 3rd
fault locating indicator from
the left flashes.
9
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.
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;
D. Contact the distributor for
replacement/maintenance of
charger.
A. The external
battery switch is
turned off, or its lead
is not properly
connected;
B. Battery reverse
connection;
C. Battery damaged;
D. Charger fault.
The fault indicator shines
and the battery indicator
flashes.
7
Disconnect some loads from
the UPS.
Overload.
All load indicators shine,
and the buzzer beeps every
0.5 second.
6
Action
Possible Cause
Alarm or Condition
Serial
No.
Chapter 5 Troubleshooting 37
E1-20010915-C-1.0
