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USER M A N UA L
6.2.4 Troubleshooting
If the UPS system does not operate correctly, please solve the problem by using the table below.
Symptom
Possible cause
Remedy
No indication and alarm in the front
display panel even though the mains
is normal.
The AC input power is not
connected well.
Check if input power cord is firmly
connected to the mains.
The icon
and the warning code
flash on LCD display and
alarm beeps every second.
EPO function is enabled.
Set the circuit in closed position to
disable EPO function.
The icon
and
flash on LCD
display and alarm beeps every second.
The external or internal battery
is incorrectly connected.
Check if all batteries are connected
well.
The icon
and
flash on LCD
display and alarm beeps twice very
second.
UPS is overloaded.
Remove excess loads from UPS
output.
UPS is overloaded. Devices
connected to the UPS are fed
directly by the electrical network
via the Bypass.
Remove excess loads from UPS
output.
After repetitive overloads, the
UPS is locked in the Bypass
mode. Connected devices are
fed directly by the mains.
Remove excess loads from UPS
output first. Then shut down the UPS
and restart it.
Fault code is shown as 43. The icon
lights on LCD display and alarm beeps
continuously.
UPS is overloaded too long and
becomes fault. Then UPS shuts
down automatically.
Remove excess loads from UPS
output and restart it.
Fault code is shown as 14, the icon
lights on LCD display, and alarm beeps
continuously.
The UPS shuts down
automatically because
short-circuit occurs on the
UPS output.
Check output wiring and if connected
devices are in short-circuit status.
Other fault codes are shown on LCD
display and alarm beeps continuously.
A UPS internal fault has
occurred.
Contact your dealer
Battery backup time is shorter than
nominal value
Batteries are not fully charged
Charge the batteries at least 7 hours
and then check capacity. If the
problem still persists, consult
your dealer.
Batteries defect
Contact your dealer to replace
the battery.
The icon
and
flash on LCD display
and alarm beeps every second.
The UPS temperature is
too high.
Check fans and notify dealer.
UPS cannot start up, the icon
flashes on LCD display, and alarm
beeps every second.
Cover of maintain switch
is open.
Check if the cover of maintain switch
is screwed tightly.
Summary of Contents for PowerValue 11T IN
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