20
Trouble Shooting Table
Issue
Audible Alarm Alarm Description
What You Should Do
The “Input” letters in
the second row of the
LCD are flashing
Two Beeps per
second at startup
for 8 total
seconds
The Input Voltage or
frequency may be beyond
the normal acceptable range.
Verify that utility voltage and
frequency is within acceptable
range. If so, contact support.
The “Input” letters in
the second row of the
LCD are flashing
One beep per 2
minutes
Possible mis-wiring AC line
and neutral line
Check wiring of input to UPS
(reversed wiring, etc) Rewire,
if necessary
Battery Indicator
Flashing
One beep per
second
Batteries are undercharged,
disconnected or need to be
replaced.
Check UPS batteries. If
necessary reconnect batteries,
wait 12 hours to charge or
replace defective batteries
Utility Normal- UPS
has no AC input
N/A
Possibility that circuit
breaker on UPS has tripped
Reset circuit breaker
Insufficient battery
run-time
Once every 4
seconds in DC
mode
“On batt” displayed on LCD
1. If batteries are
undercharged let UPS charge
batteries at least 12 hours
2. After charging, if runtime is
still insufficient, replace with
new batteries
3. Reduce output load to
lengthen runtime
UPS will not start after
pressing the “On/Off”
button
N/A
1. Insufficient time for
button depression
2. UPS has no battery
connected
3. Battery voltage is too low
to power the load
4. Fault has occurred inside
the UPS
1. Depress the “On/Off” button
for at least three seconds
2. Make sure the batteries are
connected and the connector
on the battery cartridge is
“mated” correctly
3. Plug the UPS in, remove all
loads, and allow to charge for
12 hours
4. Contact dealer for service
details
Major fault detection
by the UPS
Constant beep
Type of fault and fault code
displayed on LCD.
Review abnormal process
information table listed below
in this manual and take
appropriate action, If problem
does not resolve contact
supplier for service and
provide error code(s)
21
8
.
Maintenance
The most critical issues impacting the performance and reliability of the UPS are
environmental issues. Ensure that the temperature and humidity are always within
specifications and keep the area around the unit clean and dust free.
At a temperature of 25°C, the typical battery lifetime is approximately 4 years.
Also, check at regular intervals of 6 to 12 months whether the back-up time of the battery is
adequate.
8.1 Replacing batteries
Batteries should never be replaced without turning the UPS off and disconnecting the power
cord from the electrical outlet.
WARNING!
Batteries may cause electrical shock or burn from high short circuit
currents. Please observe the following precautions: 1. Remove jewelry and metal
objects such as watches and rings. 2. Use tools that have insulated handles. 3. Keep
tools and other metal objects from contacting and away from the batteries.
ELECTRIC ENERGY HAZARD. Do not attempt to rewire, alter, or change any
battery wiring or connectors. Attempting to make such alterations can cause
injury.
Replace the batteries with the same number and type as originally installed
batteries.
DO NOT DISCONNECT the batteries while UPS is in Battery mode.
The following is a step-by-step tutorial for replacing the batteries:
1)
Make sure the UPS is not connected to any AC power source and the UPS is powered
off.
2)
The front panel of the UPS can be removed by sliding the front cover to the right. Next,
unscrew the screws and remove the metal battery cartridge.
3)
Remove the battery cartridge from the UPS.
4)
Replace the batteries with new batteries of the same type and specifications.
5)
Push the cartridge with the new batteries back into the UPS.
6)
Reinstall the metal plate and the front panel.