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ERROR cont
ERROR CODES FOR OUTDOOR UNIT
When there is any abnormalities occur during system operation, the main
interface of wired controller will show multifunction icon, the specific code and
indoor units located so as to let you understand the operation status of air
conditioner at first time.
Code
Description
Outdoor units
E0
malfunction
High pressure
E1
protection
Discharge low
E2
temperature
protection
Low pressure
E3
protection
High discharge
temperature
E4
protection of
compressor
Imperfect main
F0
board of outdoor
units
High pressure
F1
sensor malfunction
Low pressure
F3
sensor malfunction
Discharge
temperature
F5
sensor malfunction
of compressor 1
Discharge
temperature
F6
sensor malfunction
of compressor 2
18
i
Code
Description
Malfunction of DC
FP
motor
Shell roof
temperature
FU
sensor malfunction
of compressor 1
Shell roof
temperature
Fb
sensor malfunction
of compressor 2
Overcurrent
J1
protection of
compressor 1
Overcurrent
J2
protection of
compressor 2
Overcurrent
J3
protection of
compressor 3
Overcurrent
J4
protection of
compressor 4
Overcurrent
J5
protection of
compressor 5
Overcurrent
J6
protection of
compressor 6
Back flow
J7
protection of
four-way valve
WIRED CONTROLLER - XK55
Code
Description
Subcooler liquid
b4
outlet temperature
sensor malfunction
Subcooler air
b5
outlet temperature
sensor malfunction
Steam split inlet
b6
temperature
sensor malfunction
Steam split outlet
b7
temperature
sensor malfunction
Outdoor
b8
temperature
sensor malfunction
Heat exchanger air
b9
outlet temperature
sensor malfunction
Oil return
bA
temperature
sensor malfunction
Systematic hour
bH
abnormality
Shell roof
temperature
bC
sensor abscission
protection of
compressor 1
Shell roof
temperature
bL
sensor abscission
protection of
compressor 2
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