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6 T R O U B L E S H O OT I N G
Alarm or Event
Possible cause
BUS Under Voltage
Fault (Red) LED is On.
Indicates that the UPS has bus undervoltage
Beep continuous.
fault.
Code: F022
BUS Unbalance
Fault (Red) LED is On.
Indicates that the positive bus voltage and
Beep continuous.
negative bus voltage are too lopsided.
Code: F023
BUS Short
Fault (Red) LED is On.
Indicates that the bus voltage is decreasing
Beep continuous.
very fast.
Code: F024
BUS Softstart Fail
Fault (Red) LED is On.
Indicates that the bus could not soft start
Beep continuous.
successfully.
Code: F025
Inv Over Voltage
Fault (Red) LED is On.
Indicates that the UPS has inverter
Beep continuous.
overvoltage fault.
Code: F032
Inv Under Voltage
Fault (Red) LED is On.
Indicates that the UPS has inverter
Beep continuous.
undervoltage fault.
Code: F033
Inv Softstart Fail
Fault (Red) LED is On.
Indicates that the inverter could not soft start
Beep continuous.
successfully.
Code: F034
Charger Fail
Fault (Red) LED is flash
Indicates that the UPS has confirmed the
1 beep every 1 second
charger has failed.
Code: A015
Battery Over Voltage
Fault (Red) LED is On.
Indicates that the battery voltage is too high.
Beep continuous.
Code: F016
Negative power Fault
Fault (Red) LED is On.
In a parallel system, power of UPS is negative.
Beep continuous.
Code: F0E1
Parallel cable loss
Fault (Red) LED is On.
In parallel system, parallel cable disconnected.
Beep continuous.
Code: F0E2
Parallel system battery
status
Fault (Red) LED is flash
UPS1 connect battery, UPS2 without battery.
1 beep every 1 second
Code: A0E6
Line input different
Fault (Red) LED is flash
Parallel system, UPS1 line ok, UPS2 line loss.
1 beep every 1 second
Code: A0E7
Power strategy different
Fault (Red) LED is flash
Parallel system, UPS mode (normal, converter,
1 beep every 1 second
HE) different.
Code: A0E9
Rate power different
Fault (Red) LED is flash
Parallel system rated power different.
1 beep every 1 second
Code: A0EA
HE in parallel
Fault (Red) LED is flash
Parallel system, UPS mode set as HE
1 beep every 1 second
Code: A0EB
Remedy
The UPS transfers to bypass mode if
supporting the load.
The UPS transfers to bypass mode if
supporting the load.
Contact your service representative.
Contact your service representative.
The UPS transfers to bypass mode if
supporting the load.
The UPS transfers to bypass mode if
supporting the load.
Contact your service representative.
The UPS turns off the charger until the next
power recycle. Contact your service
representative.
The UPS will turn off the charger until the
battery voltage is normal.
Redundancy mode, the fault UPS turn to fault
mode without output
Increase mode, UPS1& UPS2 turn to fault
mode.
Disconnect parallel cable one turn to fault
mode.
Check battery connect status.
Check the line input.
Check UPS OP mode, keep OP mode be the
same.
Rated power different, not allowed to turn on
UPS. Keep rated power the same.
HE not allowed in parallel system, change UPS
mode.
35
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