Njoy Aster 6KT User Manual page 25

8.2. Trouble Shooting According to Fault Indication
Warning Problem
code Displayed
Output
09
Short
14 Over Load
Neg power
16
fail
Over
19
Temperature
18 Fan fail
17 Back feed
05 DC short
02 DC Over
03 DC Under
DC
04
Unbalance
01 DC soft fail
Output soft
06
fail
Output Volt
08
low
Output volt
07
high
Possible cause
Output short circuit
Over Load
The load is pure
inductive and
capacitive
Inside temperature of
UPS is too high
Fan blocked or
disconnected over
time
Output voltage is
returned to input
Bus short
Bus Over Voltage
Bus Under Voltage
Bus Unbalance
Bus Soft start fail
Output Soft start fail
Output Volt low
Output volt high
Remedy
Remove all the loads. Turn off the
UPS. Check if UPS output and loads is
short circuit. Ensure short circuit is
removed before turning on again.
Check the loads and remove some
non-critical loads;
Check if some loads are failed.
Remove some non-critical loads;
Bypass supplies the load first, ensure
there is no overload, then turn on UPS
Check the ventilation of UPS and the
ambient temperature.
Check the fan status.
Consult dealer
Consult dealer
Consult dealer
Consult dealer
Consult dealer
Consult dealer
Consult dealer
Consult dealer
Consult dealer
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