51
Failure code
LED
indication
on master
unit
Indication
on wired
controller
(hex)
Failure code
definition
Failure description
Remarks
103
67
DC fan driving
board over
current or
current detector
damaged
DC fan driving board over current is over
5A, then alarm.170 seconds later, resume
automatically. If it occurs 4 times in an hour,
confirm the failure.
104
68
Voltage too low
protection of
DC fan driving
board
Voltage of DC fan driving board is lower
than 280V, then alarm.170 seconds later,
resume automatically. If it occurs 4 times in
an hour, confirm the failure.
105
69
Overvoltage
protection of
DC fan driving
board
Voltage of DC fan driving board is more
than 400V, then alarm.170 seconds later,
resume automatically. If it occurs 4 times in
an hour, confirm the failure.
106
6A
DC fan driving
board locked-
rotor
Fan speed can not be detected.170
seconds later, resume automatically. If
it occurs 4 times in an hour, confirm the
failure.
107
6B
Over speed
protection of
DC fan
If it occurs 4 times in an hour, lock the
alarm.
110
6E
IPM modular
protection
（
FO
）
IPM modular over current, in short circuit,
over heat, voltage too low of control circuit.
If it occurs
4 times in
an hour,
confirm
the failure.
Once
confirmed,
un-
resumable.
111
6F
INV
compressor out
of control
In the course of compressor startup or
running, the unit can not detect the rotor
position for 6 times, stop for 5s and then the
INV control board resumes automatically.
112
70
Modular
radiator temp.
too high
If temp.
＞
94
℃
, alarm.
If temp.≤94
℃
, INV control board resumes
automatically.
113
71
Inverter
controller
overload
The output current of inverter controller is
too high continually.
114
72
Voltage too low
of modular DC
If power voltage
＜
DC420V, alarm.
If voltage≥DC420V, INV control board
resumes automatically.
