00 Normal
A0 External protection device activated Result 1 of 4 with this code and meaning. Expand for model and series details.
A1 Indoor PCB defectiveness
A1 Malfunction of indoor unit PCB
A3 Drain level control system abnormality Result 1 of 2 with this code and meaning. Expand for model and series details.
A4 Malfunction of freezing protection
A5 Freeze-up protector
A5 High pressure control in heating or freeze-up protection control in cooling
A5 High pressure control or freeze-up protector
A6 Fan motor fault
A6 Malfunction of fan motor
A7 Malfunction of swing flap motor
A8 Malfunction of power supply or AC input overcurrent
A9 Malfunction of electronic expansion valve
AA Heater overheat
AC Stop due to low water level
AE Low water level or no water supply
AF Malfunction of a humidifier system
AH Malfunction of dust collector or air cleaner
AJ Malfunction of capacity setting on indoor unit PCB
C0 Malfunction of sensor system
C1 Failure of transmission between indoor PCB and sub PCB
C3 Malfunction of drain level sensor
C4 Faulty heat exchanger temperature sensor
C4 Malfunction of liquid pipe thermistor for heat exchanger
C5 Malfunction of gas pipe thermistor for heat exchanger
C6 Malfunction of fan motor sensor or fan control driver
C7 Front panel driving motor fault
C8 Malfunction of AC input current sensor system
C9 Faulty suction air temperature sensor
C9 Malfunction of suction air thermistor
CA Malfunction of discharge air thermistor
CC Faulty humidity sensor
CC Malfunction of humidity sensor system
CE Malfunction of switch box thermistor
CF Malfunction of high pressure switch
CJ Room temperature thermistor in remote controller abnormality
E0 Protection devices activated
E1 Circuit board fault
E1 Defective outdoor unit PCB
E2 Missing of earth leakage detection core
E3 Actuation of high pressure switch
E4 Actuation of low pressure switch
E5 Inverter compressor motor or overheat
E5 OL started
E6 Faulty compressor start up
E6 STD compressor motor overcurrent or lock
E7 DC fan motor fault
E7 Malfunction of outdoor unit fan motor system
E8 Overcurrent input
E8 Overcurrent of inverter compressor
E9 Malfunction of electronic expansion valve coil
EA Cooling-heating switching error
EA Malfunction of four-way valve or cool/heat switching
EC Malfunction of entering water temperature
EE Malfunction of drain water level
EF Malfunction of thermal storage unit
EH Malfunction of cooling water pump
EJ Actuation of option protection device
F3 High temperature discharge pipe control
F3 Malfunction of discharge pipe temperature
F4 Wet alarm Result 1 of 2 with this code and meaning. Expand for model and series details.
F6 Abnormal high pressure or refrigerant overcharged
F6 High pressure control in cooling
F8 Compressor internal temperature abnormality
FA Abnormal high pressure actuation of HPS
FE Abnormal oil pressure
FF Abnormal oil level or shortage of oil
FH Abnormal high temperature of refrigerant oil
FJ Abnormal exhaust temperature of engine
H0 Malfunction of sensor system of compressor
H0 Sensor fault
H1 Malfunction of room temperature sensor or humidifier damper
H2 Malfunction of power supply sensor
H3 Malfunction of high pressure switch
H4 Malfunction of low pressure switch
H5 Malfunction of compressor motor overload thermistor
H6 Malfunction of position detection sensor
H6 Position detection sensor fault
H7 Malfunction of outdoor unit fan motor signal
H8 DC current sensor fault
H8 Malfunction of compressor input current sensor
H9 Faulty suction air temperature sensor
H9 Malfunction of outdoor air thermistor
HA Malfunction of discharge air thermistor
HC Malfunction of hot water temperature thermistor
HE Malfunction of drain water level sensor
HF Alarm in thermal storage unit or storage controller
HH High room temperature alarm
HJ Malfunction of thermal storage tank water level
J0 Miswiring of thermistor
J1 Malfunction of pressure sensor
J2 Malfunction of current sensor of compressor
J3 Faulty discharge pipe temperature sensor
J3 Malfunction of discharge pipe thermistor
J4 Malfunction of low pressure equivalent saturated temperature sensor
J5 Malfunction of suction pipe thermistor
J6 Faulty heat exchanger temperature sensor
J6 Malfunction of heat exchanger thermistor
J7 Malfunction of refrigerant-circuit thermistor
J8 Malfunction of refrigerant-circuit liquid-pipe thermistor
J9 Malfunction of refrigerant-circuit gas-pipe thermistor
JA Malfunction of high pressure sensor
JC Malfunction of low pressure sensor
JE Malfunction of oil pressure sensor or sub-tank thermistor
JF Malfunction of oil level sensor or heating heat exchanger thermistor
JH Malfunction of oil temperature thermistor
JJ Malfunction of engine room temperature sensor or exhaust temperature
L0 Malfunction of inverter system
L1 Malfunction of inverter PCB
L3 Electrical component box temperature rise
L3 Electrical parts heat fault
L4 High temperature at inverter circuit heatsink
L4 Malfunction of inverter radiation fin temperature rise
L5 Inverter instantaneous overcurrent (DC output)
L5 Output overcurrent
L6 Inverter instantaneous overcurrent (AC output)
L7 Total input overcurrent
L8 Malfunction of overcurrent inverter compressor
L9 Malfunction of inverter compressor startup
LA Malfunction of power transistor
LC Transmission fault between control PCB and inverter PCB
LE Malfunction of igniter system
LF Engine startup error
LH Malfunction of generator converter
LJ Engine stop
M1 Malfunction of central remote controller PCB
M8 Transmission fault between optional centralized-control controllers
MA Improper combination of optional centralized-control controllers
MC Address duplication or improper setting
P0 Shortage of refrigerant amount in thermal storage unit
P1 Power voltage imbalance or inverter PCB
P2 Automatic refrigerant charge operation stop
P3 Malfunction of thermistor in switch box
P4 Faulty inverter circuit heatsink temperature sensor
P4 Malfunction of radiation fin temperature sensor
P5 Malfunction of DC current sensor
P6 Malfunction of AC or DC output current sensor
P7 Malfunction of total input current sensor
P8 Heat exchanger freezing protection during automatic refrigerant charging
P9 Automatic refrigerant charge operation completed
P9 Malfunction of fan motor in humidifier unit
PA Broken wire of heater in humidifier unit
PA Refrigerant cylinder is empty during automatic charging
PC Slave-unit refrigerant cylinder is empty
PE Automatic refrigerant charge operation nearly completed
PF Malfunction of starter actuation
PH Refrigerant cylinder during automatic refrigerant charging
PJ Improper combination between inverter and fan driver
PJ Malfunction of capacity setting on outdoor unit PCB
U0 Refrigerant shortage
U0 Shortage of refrigerant
U1 Reverse phase or open phase
U2 Drop voltage or main circuit overvoltage
U2 Power supply malfunction or instantaneous power failure
U3 Check operation not executed or transmission error
U4 Failure of transmission between indoor and outdoor unit
U4 Transmission fault between indoor and outdoor unit
U5 Transmission fault between indoor unit and remote controller
U6 Transmission fault between indoor units
U7 Transmission fault between outdoor units or outdoor storage unit
U8 Transmission fault between remote controllers
U9 Transmission fault in another system
UA Defect of indoor/outdoor power supply
UA Improper combination of indoor and outdoor units
UA Indoor-outdoor unit combination fault
UC Centralized-control equipment address setting fault
UE Transmission fault between indoor unit and centralized control equipment
UF System is not set yet
UH Malfunction of system
UJ Transmission fault with accessory device
A0 External protection device abnormality
A1 Indoor unit PCB abnormality
A3 Drain level control system abnormality Result 2 of 2 with this code and meaning. Expand for model and series details.
A6 Indoor fan motor lock, overload, or fan motor abnormality
A8 Power supply voltage abnormality
A9 Electronic expansion valve coil abnormality or dust clogging
AF Humidifier system abnormality
AH Auto grille unit error
AJ Defective capacity setting
C1 Transmission error involving the indoor unit PCB, fan PCB, or auto-grille control PCB
C4 Indoor heat-exchanger liquid-pipe thermistor abnormality
C5 Indoor heat-exchanger gas-pipe thermistor abnormality
C6 Indoor PCB and fan PCB combination, capacity-setting, or indoor PCB abnormality
C9 Suction-air thermistor abnormality
CE Infrared presence or floor sensor error
CJ Remote-controller thermistor abnormality
E1 Outdoor unit main PCB abnormality
E2 Current-leakage detection or missing leakage-detection core
E3 High-pressure switch activated Result 1 of 4 with this code and meaning. Expand for model and series details.
E4 Low-pressure sensor activated
E5 Compressor motor lock
E7 Outdoor fan motor abnormality
E9 Electronic expansion valve coil abnormality
F3 Discharge-pipe temperature abnormality
F4 Wet alarm Result 2 of 2 with this code and meaning. Expand for model and series details.
F6 Refrigerant overcharge
H3 Harness abnormality between the outdoor main PCB and inverter PCB
H7 Outdoor fan PCB abnormality
H9 Outdoor-air thermistor R1T abnormality
J3 Discharge-pipe R21T/R22T or compressor-body R8T/R9T thermistor abnormality
J5 Suction-pipe thermistor R3T abnormality
J7 Subcooling heat-exchanger liquid-pipe thermistor R5T abnormality
J8 Heat-exchanger liquid-pipe thermistor R4T abnormality
J9 Heat-exchanger gas-pipe thermistor R6T abnormality
JA High-pressure sensor abnormality
JC Low-pressure sensor abnormality
L1 Inverter PCB abnormality
L2 Momentary power failure during test operation
L4 Inverter radiation-fin temperature rise abnormality
L5 Compressor instantaneous overcurrent
L8 Compressor overcurrent
L9 Compressor startup abnormality
LC Transmission error between the inverter PCB and outdoor main PCB
P1 Power-supply voltage imbalance
P3 Reactor temperature abnormality
P4 Inverter radiation-fin temperature abnormality
PJ Outdoor main PCB replacement field-setting or PCB-combination abnormality
U0 Refrigerant shortage warning
U1 Open phase
U2 Power supply insufficient or instantaneous abnormality
U3 Check operation not executed
U4 Transmission error between indoor and outdoor units
U5 Transmission error between the remote controller and indoor unit
U7 Transmission error between outdoor units
U8 Transmission error between main and sub remote controllers
U9 Other indoor-unit or outdoor-unit abnormality
UA Improper indoor-unit, outdoor-unit, or remote-controller combination
UC Centralized-controller address duplication
UE Transmission error between the centralized controller and indoor unit
UF System not set yet
UH System abnormality or undefined refrigerant-system address
E2 Earth-leakage detector activated
E2 Earth-leakage detector malfunction: open circuit at A1P connector X101A
E3 High-pressure switch activated at S1PH or S2PH on main PCB connectors X2A or X3A
E3 Refrigerant overcharge or a closed stop valve
E3 Liquid stop valve closed
E4 Low-pressure malfunction caused by a closed stop valve, refrigerant shortage, or an indoor-unit malfunction
E9 Upper heat-exchanger electronic expansion-valve malfunction at Y1E on main PCB connector X21A
E9 Lower heat-exchanger electronic expansion-valve malfunction at Y3E on main PCB connector X23A
E9 Subcool heat-exchanger electronic expansion-valve malfunction at Y2E on main PCB connector X22A
E9 Receiver-gas electronic expansion-valve malfunction at Y4E on main PCB connector X25A
E9 Inverter-cooling electronic expansion-valve malfunction at Y5E on sub PCB connector X8A
E9 Auto-charge electronic expansion-valve malfunction at Y6E on sub PCB connector X10A
F3 Discharge temperature too high at R21T or R22T because a stop valve is closed or refrigerant is short
F3 Compressor-casing temperature too high at R15T because a stop valve is closed or refrigerant is short
F6 Refrigerant overcharge or a closed stop valve
H9 Ambient-temperature sensor R1T malfunction at main PCB connector X18A
J3 Discharge-temperature sensor R21T open circuit at main PCB connector X19A
J3 Discharge-temperature sensor R21T short circuit at main PCB connector X19A
J3 Discharge-temperature sensor R22T open circuit at main PCB connector X19A
J3 Discharge-temperature sensor R22T short circuit at main PCB connector X19A
J3 Compressor-casing temperature sensor R15T open circuit at main PCB connector X19A
J3 Compressor-casing temperature sensor R15T short circuit at main PCB connector X19A
J5 Suction-compressor temperature sensor R12T malfunction at sub PCB connector X15A
J5 Suction-temperature sensor R10T malfunction at main PCB connector X29A
J6 Heat-exchanger deicer temperature sensor R11T malfunction at sub PCB connector X15A
J6 Upper heat-exchanger gas temperature sensor R8T malfunction at main PCB connector X29A
J6 Lower heat-exchanger gas temperature sensor R9T malfunction at main PCB connector X29A
J7 Main liquid temperature sensor R3T malfunction at main PCB connector X30A
J7 Subcool heat-exchanger liquid temperature sensor R7T malfunction at main PCB connector X30A
J8 Upper heat-exchanger liquid temperature sensor R4T malfunction at main PCB connector X30A
J8 Lower heat-exchanger liquid temperature sensor R5T malfunction at main PCB connector X30A
J8 Auto-charge temperature sensor R14T malfunction at sub PCB connector X15A
J9 Subcool heat-exchanger gas temperature sensor R6T malfunction at main PCB connector X30A
J9 Receiver-gas temperature sensor R13T malfunction at sub PCB connector X17A
JA High-pressure sensor S1NPH open circuit at main PCB connector X32A
JA High-pressure sensor S1NPH short circuit at main PCB connector X32A
JC Low-pressure sensor S1NPL open circuit at main PCB connector X31A
JC Low-pressure sensor S1NPL short circuit at main PCB connector X31A
LC Outdoor inverter INV1 transmission trouble at main PCB connectors X20A, X28A, or X40A
LC Outdoor inverter FAN1 transmission trouble at main PCB connectors X20A, X28A, or X40A
LC Outdoor inverter FAN2 transmission trouble at main PCB connectors X20A, X28A, or X40A
LC Outdoor inverter INV2 transmission trouble at main PCB connectors X20A, X28A, or X40A
LC Transmission trouble between the main PCB and sub PCB at connectors X20A, X2A, or X3A
P1 INV1 unbalanced power-supply voltage
P1 INV2 unbalanced power-supply voltage
U1 Reversed power-supply phase malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
U2 INV1 power-supply voltage shortage
U2 INV1 power-phase loss
U2 INV2 power-supply voltage shortage
U2 INV2 power-phase loss
U3 System test run not yet executed, so system operation is not possible
U3 An error occurred during the test run
U3 Test run aborted
U3 Test run aborted because of communication issues
U4 Faulty Q1/Q2 wiring or indoor-outdoor wiring
U4 Indoor-unit communication error
U7 Faulty Q1/Q2 wiring
U7 Too many indoor units connected to the F1/F2 line
U9 System mismatch caused by an unsupported indoor-unit combination or another indoor-unit malfunction
UA Indoor-unit connection malfunction or refrigerant-type mismatch
UA Wrong unit combination in a multi system
UA Wrong outdoor unit connected
UA No branch-selector unit connected
UA Old branch-selector unit connected
UA Branch-selector unit DIP-switch abnormality
UH Auto-address malfunction or addressing inconsistency
UF Auto-address malfunction or addressing inconsistency
UF Stop valve closed or incorrect during the system test run
A0 External protection device activated Result 2 of 4 with this code and meaning. Expand for model and series details.
A0-11 An indoor-unit R32 sensor detected a refrigerant leak Result 1 of 3 with this code and meaning. Expand for model and series details.
A0/CH Leak-detection safety-system error Result 1 of 3 with this code and meaning. Expand for model and series details.
A1 Indoor-unit EEPROM failure Result 1 of 3 with this code and meaning. Expand for model and series details.
A3 Indoor drain-system malfunction
A6 Indoor fan-motor malfunction Result 1 of 4 with this code and meaning. Expand for model and series details.
A7 Indoor swing-flap motor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
A9 Indoor expansion-valve malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
AF Indoor-unit drain malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
AH Indoor filter dust-chamber malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
AJ Indoor capacity-setting malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
C1 Transmission malfunction between the indoor main and sub PCBs Result 1 of 4 with this code and meaning. Expand for model and series details.
C4 Indoor liquid heat-exchanger thermistor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
C5 Indoor gas heat-exchanger thermistor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
C9 Indoor suction-air thermistor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
CA Indoor discharge-air thermistor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
CE Indoor movement detector or floor-temperature sensor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
CH-01 R32 sensor malfunction in an indoor unit Result 1 of 3 with this code and meaning. Expand for model and series details.
CH-02 An indoor-unit R32 sensor has reached end of life Result 1 of 3 with this code and meaning. Expand for model and series details.
CH-05 An indoor-unit R32 sensor is six months from end of life Result 1 of 3 with this code and meaning. Expand for model and series details.
CH-10 Waiting for confirmation that an indoor-unit R32 sensor was replaced Result 1 of 3 with this code and meaning. Expand for model and series details.
CJ Indoor user-interface thermistor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
E1 Outdoor PCB malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
E3 High-pressure switch activated Result 2 of 4 with this code and meaning. Expand for model and series details.
E4 Outdoor low-pressure malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
E5 Outdoor compressor-lock detection Result 1 of 3 with this code and meaning. Expand for model and series details.
E7 Outdoor fan-motor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
E9 Outdoor electronic expansion-valve malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
F3 Outdoor discharge-temperature malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
F4 Outdoor suction-temperature abnormality Result 1 of 3 with this code and meaning. Expand for model and series details.
F6 Refrigerant overcharge detected Result 1 of 3 with this code and meaning. Expand for model and series details.
H3 High-pressure switch malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
H7 Outdoor fan-motor trouble Result 1 of 3 with this code and meaning. Expand for model and series details.
H9 Outdoor ambient-temperature sensor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
J1 Pressure-sensor malfunction
J2 Current-sensor malfunction
J3 Outdoor discharge-temperature sensor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
J5 Outdoor suction-temperature sensor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
J6 Outdoor de-icing temperature sensor malfunction
J7 Outdoor liquid-temperature sensor malfunction after the subcool heat exchanger
J9 Outdoor gas-temperature sensor malfunction after the subcool heat exchanger
JA High-pressure sensor S1NPH malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
JC Low-pressure sensor S1NPL malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
L1 Outdoor inverter PCB abnormality Result 1 of 3 with this code and meaning. Expand for model and series details.
L4 Inverter-fin temperature abnormality Result 1 of 3 with this code and meaning. Expand for model and series details.
L5 Inverter PCB fault Result 1 of 3 with this code and meaning. Expand for model and series details.
L8 Compressor overcurrent detected Result 1 of 3 with this code and meaning. Expand for model and series details.
L9 Compressor locked during startup Result 1 of 3 with this code and meaning. Expand for model and series details.
LC Shut-off PCB transmission trouble or disconnection
P1 Unbalanced inverter power-supply voltage Result 1 of 3 with this code and meaning. Expand for model and series details.
P4 Fin thermistor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
PJ Outdoor capacity-setting malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
U0 Abnormal low-pressure drop or faulty expansion valve Result 1 of 3 with this code and meaning. Expand for model and series details.
U2 Insufficient inverter supply voltage Result 1 of 3 with this code and meaning. Expand for model and series details.
U3 System test run has not been executed Result 1 of 3 with this code and meaning. Expand for model and series details.
U4 Indoor-to-outdoor wiring or power-supply fault
U5 User-interface to indoor-unit communication malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
U8 Main-to-sub user-interface communication malfunction
U9 Indoor-unit mismatch or another indoor-unit malfunction
UA Connected indoor-unit type or combination mismatch Result 1 of 3 with this code and meaning. Expand for model and series details.
UA-55 System lock Result 1 of 3 with this code and meaning. Expand for model and series details.
UA-56 Back-up PCB error
UA-57 External ventilation input error Result 1 of 3 with this code and meaning. Expand for model and series details.
UC Centralised address duplication Result 1 of 3 with this code and meaning. Expand for model and series details.
UE Centralised-control device to indoor-unit communication malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
UF Auto-address inconsistency
UH Auto-address inconsistency Result 1 of 3 with this code and meaning. Expand for model and series details.
A0-11 An indoor-unit R32 sensor detected a refrigerant leak Result 2 of 3 with this code and meaning. Expand for model and series details.
A0-20 A BS-unit R32 sensor detected a refrigerant leak
A0/CH Leak-detection safety-system error Result 2 of 3 with this code and meaning. Expand for model and series details.
A1 Indoor-unit EEPROM failure Result 2 of 3 with this code and meaning. Expand for model and series details.
A3 Indoor or BS-unit drain-system malfunction
A6 Indoor fan-motor malfunction Result 2 of 4 with this code and meaning. Expand for model and series details.
A7 Indoor swing-flap motor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
A9 Indoor expansion-valve malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
AF Indoor-unit drain malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
AH Indoor filter dust-chamber malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
AJ Indoor capacity-setting malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
C1 Transmission malfunction between the indoor main and sub PCBs Result 2 of 4 with this code and meaning. Expand for model and series details.
C4 Indoor liquid heat-exchanger thermistor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
C5 Indoor gas heat-exchanger thermistor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
C9 Indoor suction-air thermistor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
CA Indoor discharge-air thermistor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
CE Indoor movement detector or floor-temperature sensor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
CH-01 R32 sensor malfunction in an indoor unit Result 2 of 3 with this code and meaning. Expand for model and series details.
CH-02 An indoor-unit R32 sensor has reached end of life Result 2 of 3 with this code and meaning. Expand for model and series details.
CH-05 An indoor-unit R32 sensor is six months from end of life Result 2 of 3 with this code and meaning. Expand for model and series details.
CH-10 Waiting for confirmation that an indoor-unit R32 sensor was replaced Result 2 of 3 with this code and meaning. Expand for model and series details.
CH-20 Waiting for confirmation that a BS-unit R32 sensor was replaced
CH-21 R32 sensor malfunction in a BS unit
CH-22 A BS-unit R32 sensor is six months from end of life
CH-23 A BS-unit R32 sensor has reached end of life
CJ Indoor user-interface thermistor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
E1 Outdoor PCB malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
E2 Outdoor current-leakage detector activated Result 1 of 2 with this code and meaning. Expand for model and series details.
E3 High-pressure switch activated Result 3 of 4 with this code and meaning. Expand for model and series details.
E4 Outdoor low-pressure malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
E5 Outdoor compressor-lock detection Result 2 of 3 with this code and meaning. Expand for model and series details.
E7 Outdoor fan-motor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
E9 Outdoor electronic expansion-valve malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
EA-27 BS-unit damper malfunction
F3 Outdoor discharge-temperature malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
F4 Outdoor suction-temperature abnormality Result 2 of 3 with this code and meaning. Expand for model and series details.
F6 Refrigerant overcharge detected Result 2 of 3 with this code and meaning. Expand for model and series details.
H3 High-pressure switch malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
H4 Low-pressure switch malfunction Result 1 of 2 with this code and meaning. Expand for model and series details.
H7 Outdoor fan-motor trouble Result 2 of 3 with this code and meaning. Expand for model and series details.
H9 Outdoor ambient-temperature sensor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
J3 Outdoor discharge-temperature sensor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
J5 Outdoor suction-temperature sensor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
J6 Outdoor de-icing or gas heat-exchanger temperature sensor malfunction Result 1 of 2 with this code and meaning. Expand for model and series details.
J7 Outdoor post-subcool liquid-temperature sensor malfunction Result 1 of 2 with this code and meaning. Expand for model and series details.
J8 Outdoor coil liquid-temperature sensor malfunction Result 1 of 2 with this code and meaning. Expand for model and series details.
J9 Outdoor post-subcool gas-temperature sensor malfunction Result 1 of 2 with this code and meaning. Expand for model and series details.
JA High-pressure sensor S1NPH malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
JC Low-pressure sensor S1NPL malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
L1 Outdoor inverter PCB abnormality Result 2 of 3 with this code and meaning. Expand for model and series details.
L4 Inverter-fin temperature abnormality Result 2 of 3 with this code and meaning. Expand for model and series details.
L5 Inverter PCB fault Result 2 of 3 with this code and meaning. Expand for model and series details.
L8 Compressor overcurrent detected Result 2 of 3 with this code and meaning. Expand for model and series details.
L9 Compressor locked during startup Result 2 of 3 with this code and meaning. Expand for model and series details.
LC Outdoor-unit to inverter transmission trouble Result 1 of 2 with this code and meaning. Expand for model and series details.
P1 Unbalanced inverter power-supply voltage Result 2 of 3 with this code and meaning. Expand for model and series details.
P4 Fin thermistor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
PJ Outdoor capacity-setting malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
U0 Abnormal low-pressure drop or faulty expansion valve Result 2 of 3 with this code and meaning. Expand for model and series details.
U1 Reversed power-supply phase malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
U2 Insufficient inverter supply voltage Result 2 of 3 with this code and meaning. Expand for model and series details.
U3 System test run has not been executed Result 2 of 3 with this code and meaning. Expand for model and series details.
U4 Indoor or BS-unit to outdoor wiring fault
U5 User-interface to indoor-unit communication malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
U7 Outdoor-to-outdoor wiring fault Result 1 of 2 with this code and meaning. Expand for model and series details.
U9 Another indoor or BS unit has a warning or malfunction
UA Connected indoor-unit type or combination mismatch Result 2 of 3 with this code and meaning. Expand for model and series details.
UA-55 System lock Result 2 of 3 with this code and meaning. Expand for model and series details.
UA-57 External ventilation input error Result 2 of 3 with this code and meaning. Expand for model and series details.
UC Centralised address duplication Result 2 of 3 with this code and meaning. Expand for model and series details.
UE Centralised-control device to indoor-unit communication malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
UF Indoor-to-BS-unit wiring or piping mismatch
UH Auto-address inconsistency Result 2 of 3 with this code and meaning. Expand for model and series details.
UJ-37 Airflow rate below the legal limit for EKEA or EKVDX Result 1 of 2 with this code and meaning. Expand for model and series details.
A0-11 An indoor-unit R32 sensor detected a refrigerant leak Result 3 of 3 with this code and meaning. Expand for model and series details.
A0-20 A SV-unit R32 sensor detected a refrigerant leak
A0/CH Leak-detection safety-system error Result 3 of 3 with this code and meaning. Expand for model and series details.
A1 Indoor-unit EEPROM failure Result 3 of 3 with this code and meaning. Expand for model and series details.
A3 Indoor or SV-unit drain-system malfunction
A6 Indoor fan-motor malfunction Result 3 of 4 with this code and meaning. Expand for model and series details.
A7 Indoor swing-flap motor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
A9 Indoor expansion-valve malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
AF Indoor-unit drain malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
AH Indoor filter dust-chamber malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
AJ Indoor capacity-setting malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
C1 Transmission malfunction between the indoor main and sub PCBs Result 3 of 4 with this code and meaning. Expand for model and series details.
C4 Indoor liquid heat-exchanger thermistor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
C5 Indoor gas heat-exchanger thermistor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
C9 Indoor suction-air thermistor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
CA Indoor discharge-air thermistor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
CE Indoor movement detector or floor-temperature sensor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
CH-01 R32 sensor malfunction in an indoor unit Result 3 of 3 with this code and meaning. Expand for model and series details.
CH-02 An indoor-unit R32 sensor has reached end of life Result 3 of 3 with this code and meaning. Expand for model and series details.
CH-05 An indoor-unit R32 sensor is six months from end of life Result 3 of 3 with this code and meaning. Expand for model and series details.
CH-10 Waiting for confirmation that an indoor-unit R32 sensor was replaced Result 3 of 3 with this code and meaning. Expand for model and series details.
CH-20 Waiting for confirmation that a SV-unit R32 sensor was replaced
CH-21 R32 sensor malfunction in a SV unit
CH-22 A SV-unit R32 sensor is six months from end of life
CH-23 A SV-unit R32 sensor has reached end of life
CJ Indoor user-interface thermistor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
E1 Outdoor PCB malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
E2 Outdoor current-leakage detector activated Result 2 of 2 with this code and meaning. Expand for model and series details.
E3 High-pressure switch activated Result 4 of 4 with this code and meaning. Expand for model and series details.
E4 Outdoor low-pressure malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
E5 Outdoor compressor-lock detection Result 3 of 3 with this code and meaning. Expand for model and series details.
E7 Outdoor fan-motor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
E9 Outdoor electronic expansion-valve malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
EA-27 SV-unit damper malfunction
F3 Outdoor discharge-temperature malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
F4 Outdoor suction-temperature abnormality Result 3 of 3 with this code and meaning. Expand for model and series details.
F6 Refrigerant overcharge detected Result 3 of 3 with this code and meaning. Expand for model and series details.
H3 High-pressure switch malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
H4 Low-pressure switch malfunction Result 2 of 2 with this code and meaning. Expand for model and series details.
H7 Outdoor fan-motor trouble Result 3 of 3 with this code and meaning. Expand for model and series details.
H9 Outdoor ambient-temperature sensor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
J3 Outdoor discharge-temperature sensor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
J5 Outdoor suction-temperature sensor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
J6 Outdoor de-icing or gas heat-exchanger temperature sensor malfunction Result 2 of 2 with this code and meaning. Expand for model and series details.
J7 Outdoor post-subcool liquid-temperature sensor malfunction Result 2 of 2 with this code and meaning. Expand for model and series details.
J8 Outdoor coil liquid-temperature sensor malfunction Result 2 of 2 with this code and meaning. Expand for model and series details.
J9 Outdoor post-subcool gas-temperature sensor malfunction Result 2 of 2 with this code and meaning. Expand for model and series details.
JA High-pressure sensor S1NPH malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
JC Low-pressure sensor S1NPL malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
L1 Outdoor inverter PCB abnormality Result 3 of 3 with this code and meaning. Expand for model and series details.
L4 Inverter-fin temperature abnormality Result 3 of 3 with this code and meaning. Expand for model and series details.
L5 Inverter PCB fault Result 3 of 3 with this code and meaning. Expand for model and series details.
L8 Compressor overcurrent detected Result 3 of 3 with this code and meaning. Expand for model and series details.
L9 Compressor locked during startup Result 3 of 3 with this code and meaning. Expand for model and series details.
LC Outdoor-unit to inverter transmission trouble Result 2 of 2 with this code and meaning. Expand for model and series details.
P1 Unbalanced inverter power-supply voltage Result 3 of 3 with this code and meaning. Expand for model and series details.
P4 Fin thermistor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
PJ Outdoor capacity-setting malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
U0 Abnormal low-pressure drop or faulty expansion valve Result 3 of 3 with this code and meaning. Expand for model and series details.
U1 Reversed power-supply phase malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
U2 Insufficient inverter supply voltage Result 3 of 3 with this code and meaning. Expand for model and series details.
U3 System test run has not been executed Result 3 of 3 with this code and meaning. Expand for model and series details.
U4 Indoor or SV-unit to outdoor wiring fault
U5 User-interface to indoor-unit communication malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
U7 Outdoor-to-outdoor wiring fault Result 2 of 2 with this code and meaning. Expand for model and series details.
U9 Another indoor or SV unit has a warning or malfunction
UA Connected indoor-unit type or combination mismatch Result 3 of 3 with this code and meaning. Expand for model and series details.
UA-55 System lock Result 3 of 3 with this code and meaning. Expand for model and series details.
UA-57 External ventilation input error Result 3 of 3 with this code and meaning. Expand for model and series details.
UC Centralised address duplication Result 3 of 3 with this code and meaning. Expand for model and series details.
UE Centralised-control device to indoor-unit communication malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
UF Indoor-to-SV-unit wiring or piping mismatch
UH Auto-address inconsistency Result 3 of 3 with this code and meaning. Expand for model and series details.
UJ-37 Airflow rate below the legal limit for EKEA or EKVDX Result 2 of 2 with this code and meaning. Expand for model and series details.
A0-11 The R32 sensor detected a refrigerant leak
A0-CH Leak-detection safety-system error
A6-28 VAM airflow dropped below the legal threshold for the R32 application
A6-29 VAM airflow is approaching the legal threshold for the R32 application
A6-30 VAM warning for reduced airflow in the R32 application
CH-01 R32 sensor malfunction
CH-02 R32 sensor reached the end of its service life
CH-05 R32 sensor is six months from the end of its service life
A1 Indoor-unit PCB malfunction Result 1 of 2 with this code and meaning. Expand for model and series details.
A3 Drain-level control-system abnormality
A9 Electronic expansion-valve malfunction Result 1 of 2 with this code and meaning. Expand for model and series details.
AF Humidifier-system malfunction
AJ Indoor-unit PCB capacity-setting malfunction
C4 Liquid-pipe heat-exchanger thermistor malfunction
C5 Gas-pipe heat-exchanger thermistor malfunction
C9 Suction-air thermistor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
CA Discharge-air thermistor malfunction Result 1 of 3 with this code and meaning. Expand for model and series details.
CJ Room-temperature thermistor abnormality in the remote controller
US-04 A non-H-type remote controller is connected
U9-01 Another indoor unit on the same F1/F2 line has an error, but the EKVDX or indoor unit can still operate
U9-02 Another indoor unit on the same F1/F2 line has an error and the EKVDX or indoor unit can no longer operate
UJ-34 Capacity mismatch between the VAM and EKVDX
UJ-35 VAM abnormality or VAM-to-EKVDX system error
UJ-37 The paired VAM reported A6-28 for the R32 application
UJ-38 The paired VAM reported A6-29 for the R32 application
A0 R32 refrigerant leak detected during the test run
CH R32 refrigerant-leak sensor abnormality
E3 Stop valve is closed or an air inlet or outlet is blocked
E4 Stop valve is closed or an air inlet or outlet is blocked
L8 Stop valve is closed or an air inlet or outlet is blocked
E7 A power-supply phase is missing on a three-phase unit
L4 An air inlet or outlet is blocked
U0 A refrigerant stop valve is closed
U2 Power-supply voltage imbalance or a missing phase
U4 Inter-unit or branch wiring is incorrect
UF Inter-unit or branch wiring is incorrect
UA The connected outdoor and indoor units are incompatible
A0 External protection device activated Result 3 of 4 with this code and meaning. Expand for model and series details.
A1 Indoor-unit PCB malfunction Result 2 of 2 with this code and meaning. Expand for model and series details.
A3 Drain-level control abnormality
A4 Freezing-protection malfunction
A5 High-pressure control in heating or freeze-up protection in cooling
A6 Indoor fan-motor malfunction Result 4 of 4 with this code and meaning. Expand for model and series details.
A8 Power-supply or AC-input overcurrent abnormality
AJ Indoor PCB capacity-setting abnormality
C1 Transmission malfunction between the indoor main and sub PCBs Result 4 of 4 with this code and meaning. Expand for model and series details.
C4 Liquid-pipe thermistor malfunction
C5 Gas-pipe thermistor malfunction
C6 Indoor fan-motor sensor or driver malfunction
C9 Suction-air thermistor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
CA Discharge-air thermistor malfunction Result 2 of 3 with this code and meaning. Expand for model and series details.
CJ Room-temperature thermistor malfunction in the remote controller
A0 External protection device activated Result 4 of 4 with this code and meaning. Expand for model and series details.
A1 EKEA main PCB A1P malfunction
A9 Electronic expansion-valve malfunction Result 2 of 2 with this code and meaning. Expand for model and series details.
AJ Capacity-setting error
C1 Transmission failure between the indoor main and sub PCBs
C4 Heat-exchanger liquid-pipe thermistor malfunction
C5 Heat-exchanger gas-pipe thermistor malfunction
C9 Suction-air thermistor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
CA Discharge-air thermistor malfunction Result 3 of 3 with this code and meaning. Expand for model and series details.
CJ Remote-controller room-temperature thermistor abnormality
UJ-37 Supply airflow rate below the legal safety limit
A0 Refrigerant-leak detection or leak-safety-system error (A0-11 and related subcodes)
CH R32 sensor fault, service-life warning, or replacement-input wait state (CH-01/02/05/10)
E2 Earth-leakage detector activation or detector circuit fault (E2-01/06)
E3 High-pressure protection, refrigerant overcharge, or closed stop valve (E3-01/02/13/18)
E4 Low-pressure protection, refrigerant shortage, or closed stop valve (E4-01)
E9 Electronic expansion-valve malfunction (E9-01/04/26/29)
F3 Discharge-pipe or compressor-casing temperature too high (F3-01/20)
H9 Outdoor ambient-temperature sensor malfunction (H9-01)
J3 Discharge or compressor-casing temperature-sensor open/short circuit (J3-16/17/47/48)
J5 Suction-pipe temperature-sensor malfunction (J5-18)
J6 Outdoor heat-exchanger deicer temperature-sensor malfunction (J6-01)
J7 Subcool heat-exchanger liquid temperature-sensor malfunction (J7-06)
J8 Heat-exchanger liquid temperature-sensor malfunction (J8-01)
J9 Subcool heat-exchanger gas temperature-sensor malfunction (J9-01)
JA High-pressure sensor open or short circuit (JA-06/07)
JC Low-pressure sensor open or short circuit (JC-06/07)
LC Inverter or outdoor-fan transmission fault (LC-14/19/24)
P1 Inverter supply-voltage imbalance (P1-01)
U1 Reversed power-supply phase (U1-01/04)
U2 Supply-voltage shortage or power-phase loss (U2-01/02)
U3 Test run not completed or aborted (U3-03/04/05/06/07/08)
U4 Indoor-unit communication error (U4-03)
U9 Another connected indoor unit is reporting an error (U9-01)
UA Connected-unit type or combination mismatch (UA-03/18/20)