E0 Communication error between outdoor units Result 1 of 2 with this code and meaning. Expand for model and series details.
E2 Communication error between indoor units and the master outdoor unit Result 1 of 2 with this code and meaning. Expand for model and series details.
E4 Outdoor heat-exchanger T3 or outdoor ambient T4 temperature-sensor error
E5 Abnormal power-supply voltage Result 1 of 2 with this code and meaning. Expand for model and series details.
E7 Compressor-top or discharge-pipe T7C1/T7C2 temperature-sensor error
E8 Outdoor-unit address error Result 1 of 3 with this code and meaning. Expand for model and series details.
E9 Compressor-system EEPROM mismatch
F1 Compressor-system DC-bus voltage error
F6 Electronic expansion-valve connection error Result 1 of 2 with this code and meaning. Expand for model and series details.
H0 Communication error between main control chip and inverter-driver chip
H2 Number of slave outdoor units detected by the master has decreased
H3 Number of slave outdoor units detected by the master has increased
H4 Compressor-system inverter-module protection
H5 Low-pressure P2 protection occurred three times in 60 minutes
H6 Discharge-temperature P4 protection occurred three times in 100 minutes
H7 Detected indoor-unit count does not match the count set on the main PCB
H8 High-pressure sensor error Result 1 of 3 with this code and meaning. Expand for model and series details.
H9 Fan-module P9 protection occurred ten times in 120 minutes
HD Slave outdoor-unit malfunction Result 1 of 2 with this code and meaning. Expand for model and series details.
C7 Inverter-module PL temperature protection occurred three times in 100 minutes
P1 Discharge-pipe high-pressure protection
P2 Suction-pipe low-pressure protection
P4 Discharge-temperature protection Result 1 of 2 with this code and meaning. Expand for model and series details.
P5 Outdoor heat-exchanger temperature protection
P9 Fan-module protection
PL Inverter-module temperature protection Result 1 of 2 with this code and meaning. Expand for model and series details.
PP Compressor-discharge insufficient-superheat protection Result 1 of 2 with this code and meaning. Expand for model and series details.
L0 Inverter-module protection
L1 DC-bus low-voltage protection Result 1 of 4 with this code and meaning. Expand for model and series details.
L2 DC-bus high-voltage protection Result 1 of 4 with this code and meaning. Expand for model and series details.
L4 Motor-control-engine error Result 1 of 2 with this code and meaning. Expand for model and series details.
L5 Zero-speed protection Result 1 of 3 with this code and meaning. Expand for model and series details.
L7 Phase-sequence error Result 1 of 2 with this code and meaning. Expand for model and series details.
L8 Compressor-frequency variation exceeded 15 Hz within one second
L9 Actual compressor frequency differs from target by more than 15 Hz
E0 Communication error between outdoor units Result 2 of 2 with this code and meaning. Expand for model and series details.
E2 Communication error between the mode-selection unit and master outdoor unit
E4 T3 or T4 temperature-sensor error
E5 Abnormal power-supply voltage Result 2 of 2 with this code and meaning. Expand for model and series details.
E7 Discharge-temperature sensor T7C1 error
E8 Outdoor-unit address error Result 2 of 3 with this code and meaning. Expand for model and series details.
E9 Compressor EEPROM mismatch
F1 DC-bus voltage error
F3 T6B temperature-sensor error
F5 T6A temperature-sensor error
F6 Electronic expansion-valve connection error Result 2 of 2 with this code and meaning. Expand for model and series details.
F9 T5 temperature-sensor error
FA T8 temperature-sensor error
FB T9 temperature-sensor error
FC TL temperature-sensor error
FD T7 temperature-sensor error
H0 Communication error between main board and compressor drive board
H2 Detected outdoor-unit quantity has decreased
H3 Detected outdoor-unit quantity has increased
H4 Compressor inverter-module protection
H5 Low-pressure protection lockout after P2 occurred three times in 60 minutes
H6 Discharge-temperature protection lockout after P4 occurred three times in 100 minutes
H7 Connected indoor-unit quantity mismatch
H8 High-pressure sensor error Result 2 of 3 with this code and meaning. Expand for model and series details.
H9 DC fan-module protection lockout after P9 occurred ten times in 120 minutes
HB Low-pressure sensor error
HD Slave outdoor-unit malfunction Result 2 of 2 with this code and meaning. Expand for model and series details.
C7 Compressor inverter-module temperature-protection lockout after PL occurred three times in 100 minutes
P1 High-pressure protection Result 1 of 5 with this code and meaning. Expand for model and series details.
P2 Low-pressure protection Result 1 of 5 with this code and meaning. Expand for model and series details.
P31 Primary-current protection
P32 Secondary-current protection
P4 Discharge-temperature or discharge-temperature-switch protection
P9 DC fan-module protection
PL Compressor inverter-module temperature protection
PP Compressor-discharge insufficient-superheat protection Result 2 of 2 with this code and meaning. Expand for model and series details.
A0 Emergency stop
A1 Refrigerant-leakage protection
CA2 System connected only to a TVR DX AHU control box
CA3 System connected only to an HT hydro module
CA4 System connected only to a TVR DX AHU control box and HT hydro module
CA5 TVR indoor-unit connection range exceeded
CB1 TVR DX AHU control-box connection range exceeded
CB2 HT hydro-module connection range exceeded
CB3 Connected indoor-unit quantity exceeds the permitted range
CB4 TVR indoor units, TVR DX AHU control box, and HT hydro module are connected simultaneously
U0 Forced test operation is selected but unavailable during the first 30 minutes after power-on
L0 Inverter-compressor module error
L1 DC-bus low-voltage protection Result 2 of 4 with this code and meaning. Expand for model and series details.
L2 DC-bus high-voltage protection Result 2 of 4 with this code and meaning. Expand for model and series details.
L3 Reserved display
L4 Motor-control-engine error Result 2 of 2 with this code and meaning. Expand for model and series details.
L5 Zero-speed protection Result 2 of 3 with this code and meaning. Expand for model and series details.
L6 Motor-parameter error
L7 Phase-sequence error Result 2 of 2 with this code and meaning. Expand for model and series details.
L8 Compressor-frequency hopping error
LA PED software-verification failure
C0 Communication fault between the main control board and communication-converter board
EE Abnormal shutdown of the compressor inverter-module board
E2 Communication fault between the outdoor unit and indoor units
E4 Outdoor heat-exchanger T3 or ambient T4 temperature-sensor fault
E5 Input-voltage protection
E6 Outdoor DC-fan protection
E7 Discharge-temperature T5 sensor fault
E9 Outdoor-unit EEPROM error
E.9. Compressor-parameter mismatch
Eb E6 outdoor DC-fan protection occurred more than six times in one hour
EF Power-factor-correction circuit fault
EH Refrigerant-radiator temperature-sensor fault
EP Cooling operation is restricted because ambient temperature is below -5°C
F1 DC-bus voltage protection
H0 Communication fault between the inverter-module board and main control board
H4 L0 or L1 protection occurred three times in one hour
H7 The detected number of indoor units has increased or decreased
L0 Compressor IPM module protection
L1 DC-bus low-voltage protection Result 3 of 4 with this code and meaning. Expand for model and series details.
L2 DC-bus high-voltage protection Result 3 of 4 with this code and meaning. Expand for model and series details.
L4 Motor-control-engine fault
L5 Compressor zero-speed protection
L7 Power-supply phase-sequence protection
L8 Compressor-frequency difference exceeded 15 Hz within one second Result 1 of 2 with this code and meaning. Expand for model and series details.
L9 The difference between compressor target frequency and running frequency exceeded 15 Hz
LA Compressor overcurrent protection
PL Inverter-radiator surface-temperature protection
P1 System high-pressure protection
P2 System low-pressure protection
P3 Outdoor-unit overcurrent protection
P4 Compressor discharge-temperature protection
P5 Outdoor-condenser T3 temperature protection
P8 Outdoor-fan typhoon protection
PE Indoor-unit evaporator T2 temperature protection
E0 Main outdoor-unit communication error
E1 Phase protection
E2 Communication error with an indoor unit
E8 Main outdoor-unit address error
E9 Power protection
H0 Communication error between the DSP and main control chip
H1 Communication error between the 0537 chip and main control chip
H2 Detected main outdoor-unit quantity has decreased
H3 Detected main outdoor-unit quantity has increased
H4 P6 protection occurred three times within 60 minutes
H5 P2 protection occurred three times within 60 minutes
H6 P4 protection occurred three times within 100 minutes
H7 Detected indoor-unit quantity has decreased or increased
H8 High-pressure sensor error Result 3 of 3 with this code and meaning. Expand for model and series details.
P0 Inverter-compressor top-temperature protection Result 1 of 2 with this code and meaning. Expand for model and series details.
P1 High-pressure protection Result 2 of 5 with this code and meaning. Expand for model and series details.
P2 Low-pressure protection Result 2 of 5 with this code and meaning. Expand for model and series details.
P3 Compressor-current protection Result 1 of 2 with this code and meaning. Expand for model and series details.
P4 High discharge-temperature protection
P6 Inverter-module protection Result 1 of 3 with this code and meaning. Expand for model and series details.
C0 TSJ water-inlet temperature-sensor error
C1 TSC1 water-outlet temperature-sensor 1 error
C2 TSC2 water-outlet temperature-sensor 2 error
C3 Low-pressure sensor error
C4 High or low water-outlet temperature
C5 High or low water-inlet temperature
C6 Low-voltage protection
C7 High inverter-module temperature
C8 Water-flow switch open fault
F0 C4 protection occurred three times within 60 minutes
d0 Oil-return operation
E1 Reserved
E2 Communication fault between the outdoor and indoor units
E4 Outdoor heat-exchanger T3 and ambient T4 temperature-sensor fault
E5 Voltage-protection fault or loss of phase B or phase N
E6 Outdoor DC-fan motor error Result 1 of 2 with this code and meaning. Expand for model and series details.
E7 Discharge-temperature sensor error Result 1 of 2 with this code and meaning. Expand for model and series details.
EA Heating fan in region A ran for more than five minutes
EB E6 fan protection occurred twice within ten minutes Result 1 of 2 with this code and meaning. Expand for model and series details.
H0 Communication error between the main control chip and module chip
H1 Communication error between the main control chip and communication chip
H4 P6 module protection occurred three times within 30 minutes
H5 P2 low-pressure protection occurred three times within 30 minutes
H7 Detected indoor-unit quantity decreased Result 1 of 2 with this code and meaning. Expand for model and series details.
H8 Reserved
HF M-HOME setting mismatch between the indoor and outdoor units
P0 Inverter-compressor top-temperature protection Result 2 of 2 with this code and meaning. Expand for model and series details.
P1 High-pressure protection Result 3 of 5 with this code and meaning. Expand for model and series details.
P2 Low-pressure protection Result 3 of 5 with this code and meaning. Expand for model and series details.
P3 Outdoor input-current protection
P4 High compressor-discharge-temperature protection
P5 High outdoor-condenser temperature protection Result 1 of 2 with this code and meaning. Expand for model and series details.
P6 Inverter-module protection Result 2 of 3 with this code and meaning. Expand for model and series details.
P8 Typhoon protection
PE High evaporator-temperature protection Result 1 of 2 with this code and meaning. Expand for model and series details.
E0 Outdoor-unit communication error
E1 Power-supply phase protection
E2 Communication error between indoor units and the master outdoor unit Result 2 of 2 with this code and meaning. Expand for model and series details.
E4 Pipe-temperature T3 or ambient-temperature T4 sensor error
E5 Power-supply voltage error
E6 Outdoor DC-fan motor error Result 2 of 2 with this code and meaning. Expand for model and series details.
E7 Discharge-temperature sensor error Result 2 of 2 with this code and meaning. Expand for model and series details.
E8 Outdoor-unit address error Result 3 of 3 with this code and meaning. Expand for model and series details.
E9 Wrong compressor-drive model
EL E-lock error
EA Five-minute heating-fan protection in region A
EB E6 fan protection occurred twice within ten minutes Result 2 of 2 with this code and meaning. Expand for model and series details.
H0 Communication error between the main control chip and IR341 chip
H1 Communication error between the main control chip and 0573 chip
H4 P6 module protection occurred three times within 60 minutes
H5 P2 low-pressure protection occurred three times within 60 minutes
H6 P4 discharge-temperature protection occurred three times within 100 minutes
H7 Detected indoor-unit quantity decreased Result 2 of 2 with this code and meaning. Expand for model and series details.
H9 P9 fan-module protection occurred three times within 60 minutes
P1 High-pressure protection Result 4 of 5 with this code and meaning. Expand for model and series details.
P2 Low-pressure protection Result 4 of 5 with this code and meaning. Expand for model and series details.
P3 Compressor-current protection Result 2 of 2 with this code and meaning. Expand for model and series details.
P4 Discharge-temperature protection Result 2 of 2 with this code and meaning. Expand for model and series details.
P5 High outdoor-condenser temperature protection Result 2 of 2 with this code and meaning. Expand for model and series details.
PE High evaporator-temperature protection Result 2 of 2 with this code and meaning. Expand for model and series details.
PF E-lock unlocking error
P6 Inverter-module protection Result 3 of 3 with this code and meaning. Expand for model and series details.
P7 Reserved
P8 Reserved
P9 DC-fan module protection
PL Inverter-module temperature protection Result 2 of 2 with this code and meaning. Expand for model and series details.
C7 PL inverter-module temperature protection occurred three times within 90 minutes
L0 DC-compressor module error
L1 DC-bus low-voltage protection Result 4 of 4 with this code and meaning. Expand for model and series details.
L2 DC-bus high-voltage protection Result 4 of 4 with this code and meaning. Expand for model and series details.
L3 Reserved
L4 Motor-control-engine error, synchronisation error, or closed-loop error
L5 Zero-speed protection Result 3 of 3 with this code and meaning. Expand for model and series details.
L6 Reserved
L7 Power-supply phase-sequence error
L8 Compressor-frequency difference exceeded 15 Hz within one second Result 2 of 2 with this code and meaning. Expand for model and series details.
L9 Actual compressor frequency differs from the target by more than 15 Hz
E0 Indoor-unit operating-mode conflict with the outdoor units
E1 Communication error between the indoor and outdoor units
E2 Indoor ambient-temperature sensor T1 error
E3 Indoor heat-exchanger midpoint-temperature sensor T2 error
E4 Indoor heat-exchanger outlet-temperature sensor T2B error
E6 Indoor fan error
E7 Indoor EEPROM error
Eb Indoor electronic-expansion-valve coil error
Ed The outdoor unit is reporting an error
EE Indoor water-level error
FE The indoor unit has not been assigned an address
EE EPROM failure
FE Unspecified address of hydraulic module
C7 Protection against excessively high temperature of the inverter module
E9 Unmatched compressor model
H4 H4 reported after L0 or L1 occurs three times
H5 Unrecoverable low-pressure protection
H6 Unrecoverable discharge-temperature protection
1F6 EXV1 R134A electronic expansion-valve failure
2F6 EXV2 R410A electronic expansion-valve failure
E1 Communication failure between the wired controller and hydraulic module
E8 Water-flow failure
F3 Water-outlet temperature sensor Twout failure
F9 Water-inlet temperature sensor Twin failure
F5 Water-tank temperature sensor Ttank failure
E7 Discharge-temperature sensor T7C failure
FA Return-air temperature sensor T7 failure
Fb Module-temperature sensor TF failure
FC R410A-side evaporation-condenser liquid-pipe temperature sensor T2A failure
Fd Cold-outlet temperature sensor T3 failure
F8 Wired-controller room-temperature sensor Ta failure
H8 High-pressure sensor failure
Hb Low-pressure sensor failure
E2 Communication failure between the hydraulic module and outdoor unit
H0 Communication failure between the main control chip and driver chip
E0 Slave-unit communication failure during group control
Ed Outdoor-unit failure
E5 Voltage-protection failure
PP Insufficient-superheat protection
P1 High-pressure protection Result 5 of 5 with this code and meaning. Expand for model and series details.
P2 Low-pressure protection Result 5 of 5 with this code and meaning. Expand for model and series details.
P3 Compressor overcurrent protection
P4 Discharge-temperature T7C protection
PL Module high-temperature protection
F1 Module-board loop-relay protection