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8 Chapter Operation (LCD model)
Faults
Fault/
Warning
code
F34
F35
F36
F42
F57
Fault icon
on
constantly
on
constantly
on
constantly
on
constantly
on
constantly
Possible
cause
Alarm
Beep
continuously
Beep
continuously
Beep
continuously
Beep
continuously
Beep
continuously
Internal
fault.
Internal
fault.
Internal
fault.
Internal
fault.
Battery fault
Faults
Solution
Please contact the
distributor or Service center
Please contact the
distributor or Service center
Please contact the
distributor or Service center
Please contact the
distributor or Service center
Please contact the
distributor or Service center
Fault/
Warning
code
A15
A16
A18
A20
A04
A05
A07
A08
A10
A11
A12
A14
Blink once
every
second
Blink once
every
second
Blink once
every
second
Blink once
every
second
Blink once
every
second
Blink once
every
second
Blink once
every
second
Blink once
every
second
No beep
Line fail
No beep
Please check line voltage
A33
ground line
unconnected
Please check ground line
connect or not.
A34
Beep once
every two
minutes
reversed
polarity
(L,N) of site
wiring
Please check the polarity of
the neutral wiring and the
line wiring
A35
No beep
By pass fail
Please check line voltage
Beep once
every
second
Beep once
every
second
Batteries
unconnected
Battery
voltage low
Please check battery line
connect or not.
The UPS output will be cut
off, please switch to the
backup power.
Beep
continuously
Battery
overcharging
Please contact the
distributor or Service center
Beep twice
every
second
Overload
pre-warning
Reduce the member of
loads connected to the UPS.
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A53
A61
Fault icon
Blink once
every
second
Blink once
every
second
Blink once
every
second
Blink once
every
second
Blink once
every
second
Blink once
every
second
Blink once
every
second
Blink once
every
second
Blink once
every
second
Possible
cause
Solution
Alarm
Beep
continuously
Overload
fault
Reduce the member of
loads connected to the
UPS.
Beep once
every
second
Fan failure
Ensure that the fan is not
locked
Beep
continuously
Charger fail
Please contact the
distributor or Service
center
No beep
Start UPS
fail
Please check the battery
cables connect or not.
No beep
Parallel mode
fault
No beep
Eeprom fault
Beep
continuously
ID repetition
Beep
continuously
Unrecognized
UPS model
Beep
continuously
Slave PSDR
fault
Please contact the
distributor or Service
center
Please contact the
distributor or Service
center
Please contact the
distributor or Service
center
Please contact the
distributor or Service
center
Please contact the
distributor or Service
center
Table 8.5-1 UPS troubleshooting of LCD panel indicator
When you contact the service center, please provide the following
information:
● Model No and Serial No of the UPS.
● The date when the problem arose.
● Complete description of the problem, including the panel display, alarm
warning, and power condition and the load capacity. If the UPS is a long
backup time model, you may also provide the battery information.
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