32
Symptom
Possible cause
Remedy
The warning code 02 and the icon
flash on LCD display. The alarm
beeps every second.
The input neutral wire is
disconnected.
Check and correct the input
neutral connection. If the
connection is ok and the
warning is still displaying,
please refer to the LCD setting
section, to enter the neutral
loss check menu, to see if the
parameter3 is “CHE”. If it is,
please press the “Enter” key
firstly to make the “CHE” flash
and press the “Enter” key
secondly to make the UPS clear
the alarm. If the warning still
exists, please check input fuses
of L2 and L3.
The L2 or L3 input fuse is
broken.
Replace the fuse.