Gree XK55 - Page 43

Wired Controller XK55
39
5.3 Code table for debugging
Code Content Code Content
Cod
e
Content
U2
Outdoor units
Capacity
Code/Setting of
jumper is wrong
UE
Invalid charge of
refrigerant
CH
High rating
capacity
configuration
U3
Phase protection of
power supply
UL
Dial-up error for
emergent operation of
compressor
CL
Low rating
capacity
configuration
U4
Protection of lack
of Refrigerant
C0
Communication
malfunction between
indoor unit and outdoor
unit, indoor unit and
wired controller
CF
Malfunction of
multiple master
units
U5
The address for
drive board of
compressor is
wrong
C2
Communication
malfunction of master
controller and the driver
of inverter compressor
CJ
Dial-up conflict
of systematic
address
U6
Alarm due to
abnormity of valve
C3
Drive communication
malfunction between
master control and
inverter and inverter fan
CP
Malfunction of
multiple master
wired controller
U8
Malfunction of
pipeline of indoor
unit
C4
Indoor units deficiency
malfunction
CU
Communication
malfunction
between indoor
units and
received lamp
panel
U9
Malfunction of
pipeline of outdoor
unit
C5
Number conflict of
indoor units engineering
alarm
Cb
Address
overflow of units
IP
UC
Setting
successfully for
main indoor units
C6
Inconsistency of outdoor
units number alarm