IOGear GBB1000N, User Manual

Page: 47 / 52

47
Troubleshooting
Operation problems can be due to a variety of causes. The first step in solving them is to make
sure that all cables are securely attached and seated completely in their sockets.
Symptom Possible Cause Action
No indication and no alarm, 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 AC input is connected
to the UPS output Connect AC input power
cord to AC input correctly
Icon and
warning code
flash on LCD display
Alarm beeps every 2 seconds
EPO function is activated Set the circuit in closed
position to disable EPO
function
Icon and and
warning code flash on LCD
display
Alarm beeps every 2 seconds
Line and neutral
conductors of UPS input
are reversed Rotate mains power
socket by 180degree
and then connect to UPS
system
Icon and and
Warning code
Flash on LCD display
Alarm beeps every 2 seconds
The external or internal
battery is incorrectly
connected Check if all batteries are
connected well
Fault code is shown as 27 on LCD
display
Alarm continuously beeps Battery voltage is too high
or the charger is fault Please contact your dealer
Fault code is shown as 28 on LCD
display
Alarm continuously beeps Battery voltage is too low
or the charger is fault Please contact your dealer