Troubleshooting
34
55 - 59
Negative power fault
Please contact your supplier.
85 - 89
Bus short
Please contact your supplier.
120 - 124
Inverter fault
Inverter voltage is abnormal, or inverter IGBT
opened. Please manually clear the fault and if
the fault is still on, please contact with local
dealer
130 - 134
Inverter relay opened
Inverter relay is opened. Please contact with
local dealer
135 - 139
Rectifier fault
DC bus over voltage, low voltage, shorted or
IGBT opened. Please manually clear the fault
and if the fault is still on, please contact with
local dealer
145 - 149
Fan fault
One or more fans are faulty or blocked
Check if all fans working normally
Check if something blocks fan
150 - 154
EPO
Check if EPO is closed correctly
Check if EPO is activated manually
155 - 159
SPS abnormal
Please contact your supplier.
Note:
Contact the supplier if display screen shows other fault information. After troubleshooting,
please manually fault clear to restart UPS.
LCD display warning code is as shown below (ALA means alarm):
Fig 7- 2: Warning code