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Fan failure/Over temperature
Charger failure
I/P fuse broken
Overload 3 times in 30min
4. Trouble Shooting
If the UPS does not function correctly, refer to the table for the solution.
Symptom
Possible cause
No indication and alarm in the
The AC input power is not
front display panel even though
connected well.
the mains is normal.
The icon
and the warning code
EPO function is enabled.
flash on LCD display and alarm
beeps every second.
The icon and flash on LCD display
The external or internal battery is
and alarm beeps every second.
incorrectly connected.
UPS is overload.
UPS
is
connected to the UPS are directly
The icon
and
flash on
powered by the electrical network
LCD display and alarm beeps twice
via the Bypass.
every second.
After continous overloads, the
UPS is locked in the Bypass mode.
Connected devices are are directly
powered by the mains.
Fault code is shown as 43. The icon
Due to overload for a long time,
the UPS becomes faulty and shuts
lights on LCD display and
down automatically.
alarm beeps continuously.
Fault code is shown as 14, the icon
The UPS shuts down automatically
due to the short circut on the UPS
lights on LCD display, and
output.
alarm beeps continuously.
Other fault codes are shown on LCD
UPS internal fault has occurred.
display and alarm beeps continuously.
27
Beeps every second
Beeps every second
Beeps every second
Beeps every second
Remedy
Connect firmly
Set the circuit in closed position to
disable EPO function.
Check if all batteries are connected
properly.
Remove excess loads from UPS
output.
overloaded.
Devices
Remove excess loads from UPS
output.
Remove excess loads from UPS
output first. Then shut down the
UPS and restart it.
Remove excess loads from UPS
output and restart it.
Check the output wiring and if the
devices connected to the output
have experienced a short circuit.
Contact your service center.
Batteries are not fully charged.
Battery backup time is shorter
than nominal value.
Batteries faulty.
The icon
and
flash on LCD
Fan is locked or not working; or
display and alarm beeps every
the UPS temperature is too high.
second.
5. Storage and Maintenance
5-1 Storage
Before storing, charge the UPS at least 7 hours. Store the UPS covered and upright in a cool, dry location.
During storage, recharge the battery in accordance with the following table:
Storage Temperature
Recharge Frequency
-25°C - 40°C
Every 3 months
40°C - 45°C
Every 2 months
5-2 Maintenance
The UPS system operates with hazardous voltages. Repairs may be carried out only by qualified
maintenance personnel.
Even after the unit is disconnected from the mains, components inside the UPS system are still
connected to the battery packs which are potentially dangerous.
Before carrying out any kind of service and/or maintenance, disconnect the batteries and verify that no
current is present and no hazardous voltage exists in the terminals of high capability capacitor such as
BUS-capacitors.
Only persons adequately familiar with batteries and with the required precautionary measures may
replace batteries and supervise operations. Unauthorized persons must be kept well away from the
batteries.
Verify that no voltage between the battery terminals and the ground is present before maintenance or
repair. In this product, the battery circuit is not isolated from the input voltage. Hazardous voltages may
occur between the battery terminals and the ground.
Batteries may cause electric shock and have a high short-circuit current. Please remove all
wristwatches, rings and other metal personal objects before maintenance or repair and use tools with
insulated grips and handles for maintaining or repairing.
When replacing the batteries, install the same number and same type of batteries.
Do not attempt to dispose of batteries by burning them. This could cause battery explosion.
The batteries must be rightly disposed according to local regulations.
Do not open or destroy batteries. Escaping electrolyte can cause injury to the skin and eyes. It may
be toxic.
Please replace the fuse only with the same type and amperage in order to avoid fire hazards.
Do not disassemble the UPS system.
Charge the batteries at least
7 hours and check capacity. If the
problem still persists, contact the
service center.
Replace batteries.
Check fans and notify service
center.
Charging Duration
1-2 hours
1-2 hours
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