Error codes

E1
Error description
Phase sequence error
E2
Error description
Communication error between indoor and master unit
Remarks
Only displayed on the master unit with the error
E4
Error description
T3/T4 temperature sensor error
E5
Error description
Abnormal power supply voltage
E5
Error description
Reserved
Remarks
Reserved
E7
Error description
Discharge temperature sensor error
E8
Error description
Outdoor unit address error
xE9
Error description
EEPROM mismatch of compressor
xF1
Error description
DC bus voltage error
F3
Error description
T6B temperature sensor error
F5
Error description
T6A temperature sensor error
F6
Error description
Electronic expansion valve connection error
xH0
Error description
Communication error between main board and compressor drive board
H2
Error description
Quantity of outdoor unit decreases error
Remarks
Only displayed on the master unit with the error
H3
Error description
Quantity of outdoor unit decreases error
Remarks
Only displayed on the master unit with the error
xH4
Error description
Inverter-module protection
H5
Error description
3 times of P2 protection in 60 minutes
H6
Error description
3 times of P2 protection in 60 minutes
H7
Error description
Quantity of indoor units mismatching
Remarks
Only displayed on the master unit with the error
H8
Error description
High pressure sensor error
H9
Error description
10 times of P9 protection in 120 minutes
yHd
Error description
Slave unit malfunction
(y=1,2; e.g. 1Hd stands for slave unit 1 error)
Remarks
Only displayed on the master unit with the error
C7
Error description
3 times of PL protection in 100 minutes
P1
Error description
High pressure protection or discharge temperature switch protection
P2
Error description
Low pressure protection
xP3
Error description
Compressor current protection
P4
Error description
Discharge temperature protection
P5
Error description
High temperature protection of condenser
xP9
Error description
Fan module protection
xPL
Error description
Inverter module temperature protection
PP
Error description
Compressor discharge insufficient superheat protection
xL0
Error description
Inverter compressor module error
xL1
Error description
DC bus low voltage protection
xL2
Error description
DC bus high voltage protection
xL4
Error description
MCE error
xL5
Error description
Zero speed protection
xL7
Error description
Phase sequence protection
xL8
Error description
Compressor frequency variation greater than 15 Hz within one second protection
xL9
Error description
Actual compressor frequency differs from target frequency by more than 15 Hz protection
Error code
Error description
E0
Mode conflict
E1
Communication error between indoor and outdoor units
E2
Indoor ambient temperature sensor (T1) error
E3
Indoor heat exchanger mid-point temperature sensor (T2) error
E4
Indoor heat exchanger outlet temperature sensor (T2B) error
E6
Fan error
E7
EEPROM error
Eb
Indoor EEV coil error
Ed
Outdoor unit error
EE
Water level error
FE
Indoor unit has not been assigned an address