Liebert GXTRT Series Installation and User Manual
1-3 kVA UPS
Page 24
9/2005
Emerson Network Power
Maintenance
S/N.
Fault conditions
Possible cause
Actions to take
9
The ALARM LED and
LED 1 lights up, the
buzzer beeps
UPS has no output due to
output shortcircuit
Completely power down the UPS and
check the load for shortcircuit. If the
fault persists after removing the load,
please seek technical assistance from
local Emerson customer service office.
10
The ALARM LED and
LED 3 lights up, the
buzzer beeps
UPS overheating
Check the UPS for overload and fan
obstruction conditions, check that the
ambient temperature does not exceed
40°C. Completely power down the
UPS, wait 10min for it to cool down,
and turn it on afterwards. If the fault
persists, please seek technical
assistance from local Emerson
customer service office
11
The INVERTER LED
flashes, the ALARM
LED lights up, the
buzzer beeps
Inverter fault
Seek technical assistance from local
Emerson customer service office
12
The ALARM LED and
LED 5 lights up, the
buzzer beeps
Rectifier fault
Seek technical assistance from local
Emerson customer service office
13
The ALARM LED and
LED 2 lights up , the
buzzer beeps
The battery charger in the
power module fails
Seek technical assistance from local
Emerson customer service office
14
3kVA UPS IEC output
socket has no output
The fuse is blown out due
to overload
Power down and turn off the UPS,
replace the fuse, disconnect the load,
turn on the UPS again, and check
whether the output voltage is normal. If
the fault persists, seek technical
assistance from local Emerson
customer service office
When reporting UPS fault, please provide the machine model and machine serial No.
(provided on the nameplate).
