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4 Trouble Shooting
If the UPS system does not operate correctly, please solve the problem by
using the table below.
Symptom
No indication and alarm
in the front display panel
even though the mains is
normal.
The icon
and the
warning code
flash
on LCD display and alarm
beeps every second.
The icon
and
BATT
FAULT
on LCD display and alarm
beeps every second.
The icon
and
on LCD display and
alarm beeps twice every
second.
EPO enable
Over temperature
Charger failure
Possible cause
The AC input power is
not connected well.
EPO
function
activated. At this time,
the EPO switch is in
"OFF" status or the
jumper is open.
flash
The external or internal
battery is incorrectly
connected.
UPS is overload.
UPS
is
Devices
to the UPS are fed
flash
directly by the electrical
network via the Bypass.
After
overloads, the UPS is
locked in the Bypass
mode.
devices are fed directly
by the mains.
3F
40
Check if input cable
firmly connected to the
is
Set the circuit in closed
position to disable the
EPO function.
Check if all batteries
are connected well.
Remove excess loads
from UPS output.
overloaded.
connected
Remove excess loads
from UPS output.
repetitive
Remove excess loads
from UPS output first.
Connected
Then shut down the
UPS and restart it.
Battery voltage
unbalanced
Charger short
circuited
Remedy
mains.
43
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