01 Indoor ambient-temperature sensor TA failure Result 1 of 5 with this code and meaning. Expand for model and series details.
02 Indoor pipe-temperature sensor TC1 failure
03 Indoor pipe-temperature sensor TC2 failure
04 Indoor dual-heat-source temperature sensor failure
05 Indoor EEPROM failure Result 1 of 6 with this code and meaning. Expand for model and series details.
06 Communication failure between indoor and outdoor units Result 1 of 6 with this code and meaning. Expand for model and series details.
07 Communication failure between indoor unit and wired controller Result 1 of 6 with this code and meaning. Expand for model and series details.
08 Indoor water-drainage failure
09 Duplicate indoor-unit address Result 1 of 5 with this code and meaning. Expand for model and series details.
0A Reserved display
0C Indoor 50 Hz zero-crossing failure Result 1 of 4 with this code and meaning. Expand for model and series details.
0E Indoor DC fan failure
20 Outdoor-unit fault roll-up display Result 1 of 4 with this code and meaning. Expand for model and series details.
01 Indoor ambient-temperature sensor TA failure Result 2 of 5 with this code and meaning. Expand for model and series details.
02 Indoor coil-pipe temperature sensor TC1 failure Result 1 of 3 with this code and meaning. Expand for model and series details.
03 Indoor coil-pipe temperature sensor TC2 failure Result 1 of 3 with this code and meaning. Expand for model and series details.
05 Indoor EEPROM failure Result 2 of 6 with this code and meaning. Expand for model and series details.
06 Communication failure between indoor and outdoor units Result 2 of 6 with this code and meaning. Expand for model and series details.
07 Communication failure between indoor unit and wired controller Result 2 of 6 with this code and meaning. Expand for model and series details.
08 Indoor float-switch failure Result 1 of 4 with this code and meaning. Expand for model and series details.
09 Duplicate indoor-unit address Result 2 of 5 with this code and meaning. Expand for model and series details.
12 Indoor 50 Hz zero-crossing failure
13 Incorrect DC motor model
14 DC motor failure
16 Communication failure between DC motor and indoor PCB
18 Three-pipe valve-box four-way valve reversing failure
20 Outdoor-unit fault roll-up display Result 2 of 4 with this code and meaning. Expand for model and series details.
01 Indoor ambient-temperature sensor TA failure Result 3 of 5 with this code and meaning. Expand for model and series details.
02 Indoor coil-pipe temperature sensor TC1 failure Result 2 of 3 with this code and meaning. Expand for model and series details.
03 Indoor coil-pipe temperature sensor TC2 failure Result 2 of 3 with this code and meaning. Expand for model and series details.
05 Indoor EEPROM failure Result 3 of 6 with this code and meaning. Expand for model and series details.
06 Communication failure between indoor and outdoor units Result 3 of 6 with this code and meaning. Expand for model and series details.
07 Communication failure between indoor unit and wired controller Result 3 of 6 with this code and meaning. Expand for model and series details.
08 Indoor float-switch failure Result 2 of 4 with this code and meaning. Expand for model and series details.
09 Duplicate indoor-unit address Result 3 of 5 with this code and meaning. Expand for model and series details.
0A Communication failure between indoor unit and display board
0C Indoor 50 Hz zero-crossing failure Result 2 of 4 with this code and meaning. Expand for model and series details.
0E Indoor DC motor failure Result 1 of 3 with this code and meaning. Expand for model and series details.
20 Outdoor-unit fault roll-up display Result 3 of 4 with this code and meaning. Expand for model and series details.
01 Indoor ambient-temperature sensor TA failure Result 4 of 5 with this code and meaning. Expand for model and series details.
02 Indoor coil-pipe temperature sensor TC1 failure Result 3 of 3 with this code and meaning. Expand for model and series details.
03 Indoor coil-pipe temperature sensor TC2 failure Result 3 of 3 with this code and meaning. Expand for model and series details.
05 Indoor EEPROM failure Result 4 of 6 with this code and meaning. Expand for model and series details.
06 Communication failure between indoor and outdoor units Result 4 of 6 with this code and meaning. Expand for model and series details.
07 Communication failure between indoor unit and wired controller Result 4 of 6 with this code and meaning. Expand for model and series details.
08 Indoor float-switch failure Result 3 of 4 with this code and meaning. Expand for model and series details.
09 Duplicate indoor-unit address Result 4 of 5 with this code and meaning. Expand for model and series details.
0C Indoor 50 Hz zero-crossing failure Result 3 of 4 with this code and meaning. Expand for model and series details.
0E Indoor DC motor failure Result 2 of 3 with this code and meaning. Expand for model and series details.
12 Three-pipe valve-box four-way valve reversing failure Result 1 of 2 with this code and meaning. Expand for model and series details.
20 Outdoor-unit fault roll-up display Result 4 of 4 with this code and meaning. Expand for model and series details.
01 Indoor ambient-temperature sensor TA failure Result 5 of 5 with this code and meaning. Expand for model and series details.
02 Indoor gas-pipe temperature sensor TC1 failure
03 Indoor liquid-pipe temperature sensor TC2 failure
05 Indoor EEPROM failure Result 5 of 6 with this code and meaning. Expand for model and series details.
06 Communication failure between indoor and outdoor units Result 5 of 6 with this code and meaning. Expand for model and series details.
07 Communication failure between indoor unit and wired controller Result 5 of 6 with this code and meaning. Expand for model and series details.
08 Indoor float-switch failure Result 4 of 4 with this code and meaning. Expand for model and series details.
09 Duplicate indoor-unit address Result 5 of 5 with this code and meaning. Expand for model and series details.
0C Indoor 50 Hz zero-crossing failure Result 4 of 4 with this code and meaning. Expand for model and series details.
0E Indoor DC motor failure Result 3 of 3 with this code and meaning. Expand for model and series details.
12 Three-pipe valve-box four-way valve reversing failure Result 2 of 2 with this code and meaning. Expand for model and series details.
14 Outdoor-unit fault roll-up display
20 Defrosting-temperature sensor Te1 failure
21 Outdoor ambient-temperature sensor Ta failure
22 Suction-temperature sensor Ts failure
23 Discharge-temperature sensor Td failure
26-0 No connected indoor units detected
26-1 Detected indoor-unit count is lower than the configured count
26-2 Detected indoor-unit count is higher than the configured count
28 High-pressure sensor Pd failure Result 1 of 2 with this code and meaning. Expand for model and series details.
29 Low-pressure sensor Ps failure Result 1 of 2 with this code and meaning. Expand for model and series details.
30 High-pressure switch HPS failure
33 Outdoor EEPROM failure
34 Discharge temperature too high protection
35 Four-way valve reversing failure
39-0 Low-pressure sensor Ps too-low protection Result 1 of 2 with this code and meaning. Expand for model and series details.
39-1 Compression ratio too high protection
39-2 Compression ratio too low protection
40 High-pressure sensor Pd too-high protection Result 1 of 2 with this code and meaning. Expand for model and series details.
43 Discharge-temperature sensor Td too-low protection
46 Communication failure with inverter board
53 CT current too low or current-sensor failure
54 Valve-plate module communication failure
57 Communication failure between valve-plate module and host computer
58 Valve-plate Tc1 temperature-sensor failure
59 Valve-plate Tc2 temperature-sensor failure
60 Reserved valve-plate module display
61 Reserved valve-plate module display
62 Reserved valve-plate module display
63 Valve-plate module dial-setting error
64 CT current too high
71-0 Upper outdoor DC fan motor blocked
71-1 Lower outdoor DC fan motor blocked
75-0 No pressure drop between high- and low-pressure sides
75-4 Pressure drop between high- and low-pressure sides is too small
78 Refrigerant shortage detected
81 IPM module temperature too high protection
82 Compressor current protection
83 Outdoor model-setting error
108 Transient IPM rectifier-side overcurrent detected by software
109 Current-detection circuit abnormality
110 IPM module protection
111 Compressor rotor position not detected or compressor not connected
112 Inverter heat-sink temperature too high
113 Inverter overload
114 Inverter DC-bus voltage too low
115 Inverter DC-bus voltage too high
116 Communication failure between inverter and control PCB
117 Inverter software overcurrent protection
118 Compressor startup failure
119 Inverter current-detection circuit failure
120 Inverter power-supply failure
121 Inverter-board power-supply failure
122 Inverter heat-sink temperature-sensor failure
123 Transient IPM rectifier-side overcurrent detected by hardware
555.0 Standby because connected capacity is outside the permitted range
555.1 Heating standby because outdoor ambient temperature is too high
555.3 Cooling standby because outdoor ambient temperature is too high or too low
E7 Communication fault between indoor and outdoor units
E1 Indoor temperature sensor failure
E2 Indoor coil sensor failure
E4 Indoor EEPROM failure
E14 Indoor fan failure
E5 Indoor anti-freeze protection
E9 Indoor overload protection in heating mode
F12 Outdoor EEPROM failure
F1 Outdoor IPM failure
F22 AC input overcurrent protection
F3 Communication failure between the power module and main PCB
F20 High-pressure protection
F19 Power overvoltage or undervoltage protection
F27 Compressor stall or instantaneous-stop protection
F4 Compressor discharge-temperature protection
F8 Outdoor DC fan motor abnormality
F21 Outdoor piping-temperature sensor abnormality
F7 Suction-temperature sensor failure
F6 Outdoor ambient-temperature sensor abnormality
F25 Compressor discharge-temperature sensor abnormality
F13 Refrigerant shortage detected
F14 Four-way valve reversing failure
F11 Compressor jam on applicable SPDU models
F28 Power-module PWM selection-circuit error
F15 Outdoor terminal-block overtemperature protection
F2 Instantaneous compressor overcurrent protection
F23 Compressor U, V, or W phase overcurrent
F9 Power-module reset fault
F24 Current-transformer disconnection
F34 Outdoor coil protection
F35 Compressor driver-board failure
F43 Indoor and outdoor model-matching abnormality
1 Outdoor EEPROM malfunction
2 PIM hardware overcurrent Result 1 of 2 with this code and meaning. Expand for model and series details.
3 Compressor overcurrent during deceleration Result 1 of 2 with this code and meaning. Expand for model and series details.
4 Communication failure between the control board and compressor driver module
5 Compressor overcurrent detected by the control board
6 DC-bus or AC input overvoltage protection Result 1 of 2 with this code and meaning. Expand for model and series details.
7 Compressor-current sampling-circuit fault
8 Compressor discharge-temperature protection
9 Outdoor DC fan motor fault
10 Outdoor defrost-temperature sensor Te abnormality
11 Suction-temperature sensor Ts abnormality
12 Outdoor ambient-temperature sensor Ta abnormality
13 Discharge-temperature sensor Td abnormality
14 PFC circuit high-voltage protection Result 1 of 2 with this code and meaning. Expand for model and series details.
15 Communication failure between indoor and outdoor units
16 Refrigerant shortage or discharge-pipe blockage Result 1 of 2 with this code and meaning. Expand for model and series details.
17 Four-way valve reversing abnormality
18 Compressor motor desynchronisation
19 DC-bus or AC input undervoltage protection Result 1 of 2 with this code and meaning. Expand for model and series details.
20 Indoor pipe-temperature too-high protection Result 1 of 2 with this code and meaning. Expand for model and series details.
21 Indoor pipe-temperature too-low protection Result 1 of 2 with this code and meaning. Expand for model and series details.
22 PFC circuit overcurrent protection Result 1 of 2 with this code and meaning. Expand for model and series details.
23 Compressor driver-module overtemperature protection Result 1 of 2 with this code and meaning. Expand for model and series details.
24 Compressor startup failure Result 1 of 3 with this code and meaning. Expand for model and series details.
25 Compressor drive-module input overcurrent
26 Compressor drive-module phase loss
27 Drive-module input-current sampling-circuit fault
28 Compressor wiring not detected Result 1 of 2 with this code and meaning. Expand for model and series details.
37 Compressor phase overcurrent detected by the driver module Result 1 of 2 with this code and meaning. Expand for model and series details.
38 Drive-module ambient-temperature sensor abnormality
39 Mid-condenser temperature sensor TC abnormality
42 High-pressure switch abnormality
43 Low-pressure switch abnormality
44 Outdoor condenser-temperature too-high protection Result 1 of 2 with this code and meaning. Expand for model and series details.
45 System low-pressure protection Result 1 of 2 with this code and meaning. Expand for model and series details.
01 Indoor ambient-temperature sensor malfunction Result 1 of 2 with this code and meaning. Expand for model and series details.
02 Indoor pipe-temperature sensor malfunction Result 1 of 2 with this code and meaning. Expand for model and series details.
04 Indoor PCB EEPROM error Result 1 of 2 with this code and meaning. Expand for model and series details.
07 Communication failure between the indoor and outdoor units Result 1 of 9 with this code and meaning. Expand for model and series details.
08 Communication failure between the wired controller or IR receiver and the indoor unit
0C Drain-system malfunction with an open float-switch circuit
0D Indoor-unit zero-cross signal error Result 1 of 2 with this code and meaning. Expand for model and series details.
0E Indoor DC fan-motor abnormality
15 Outdoor main-control PCB EEPROM malfunction
16 PIM hardware overcurrent
17 Compressor overcurrent during deceleration
18 Communication failure between the control board and compressor driver module
19 Compressor overcurrent detected by the control board
1A DC-bus or AC input voltage is too high
1B Compressor-current sampling-circuit fault
1C Compressor discharge temperature is too high
1D Outdoor DC fan-motor fault
1E Outdoor defrost-temperature sensor Te abnormality
1F Outdoor suction-temperature sensor Ts abnormality
20 Outdoor ambient-temperature sensor Ta abnormality
21 Compressor discharge-temperature sensor Td abnormality
22 PFC circuit-loop high voltage
23 Communication failure between the indoor and outdoor units
24 Discharge-pipe restriction or refrigerant shortage
25 Four-way valve reversing abnormality
26 Compressor motor desynchronisation
28 Indoor pipe temperature is too high
2A PFC circuit-loop overcurrent
2B Compressor driver-module temperature is too high
2C Compressor startup failure
2D Compressor drive-module input overcurrent
2E Compressor drive-module power-supply phase loss
2F Drive-module input-current sampling-circuit fault
30 Compressor wiring is not detected
39 Compressor overcurrent detected by the compressor driver module
3A Drive-module ambient-temperature sensor abnormality
3B Mid-condenser temperature sensor TC abnormality
3E High-pressure switch open-circuit abnormality
3F Low-pressure switch open-circuit abnormality
40 Outdoor condenser temperature TC is too high
41 System low-pressure protection
01 Indoor ambient-temperature sensor malfunction Result 2 of 2 with this code and meaning. Expand for model and series details.
02 Indoor pipe-temperature sensor malfunction Result 2 of 2 with this code and meaning. Expand for model and series details.
04 Indoor PCB EEPROM error Result 2 of 2 with this code and meaning. Expand for model and series details.
07 Communication failure between the indoor and outdoor units Result 2 of 9 with this code and meaning. Expand for model and series details.
08 Communication failure between the wired controller and the indoor unit
0C Drain-system malfunction
0D Indoor-unit zero-cross signal error Result 2 of 2 with this code and meaning. Expand for model and series details.
0E Communication failure between the main control PCB and fan-motor drive
0F Indoor fan-motor overcurrent Result 1 of 2 with this code and meaning. Expand for model and series details.
11 Fan-motor drive DC voltage is too high or too low
12 Fan-motor drive temperature is too high
13 Indoor fan motor is out of step
20-0 Defrosting temperature sensor Tdef failure
21 Ambient temperature sensor Ta failure
22-2 Suction temperature sensor Ts(acc) failure
23-0 Discharge temperature sensor Td1 failure
23-1 Discharge temperature sensor Td2 failure
24-0 Module heat sensor Th failure
24-1 Oil temperature sensor Toil1 failure
24-2 Oil temperature sensor Toil2 failure
25-0 Heat-exchanger inlet temperature sensor Toci1 failure
26-0 Indoor-unit communication failure: connected indoor units cannot be found for 200 communication cycles
26-1 Indoor-unit communication failure: searched indoor-unit quantity is below the set quantity
26-2 Indoor-unit communication failure: searched indoor-unit quantity exceeds the set quantity
27-0 Oil temperature Toil1 too-high protection
27-1 Oil temperature Toil2 too-high protection
28 High-pressure sensor Pd failure Result 2 of 2 with this code and meaning. Expand for model and series details.
29 Low-pressure sensor Ps failure Result 2 of 2 with this code and meaning. Expand for model and series details.
30-0 High-pressure switch HPS1 failure
30-1 High-pressure switch HPS2 failure
33-0 AT24C04 EEPROM communication failure
33-2 AT24C04 EEPROM data-check failure for model code or checksum
33-3 AT24C04 EEPROM data-check failure for out-of-limit data or reverse sequence
34-0 Discharge temperature Td1 too-high protection
34-1 Discharge temperature Td2 too-high protection
35-0 Four-way valve reversing failure, subcondition 0
35-1 Four-way valve reversing failure, subcondition 1
36-0 Oil temperature Toil1 too-low protection
36-1 Oil temperature Toil2 too-low protection
39-0 Low-pressure sensor Ps too-low protection Result 2 of 2 with this code and meaning. Expand for model and series details.
39-1 Compression-ratio too-high protection
40 High-pressure sensor Pd too-high protection Result 2 of 2 with this code and meaning. Expand for model and series details.
43-0 Discharge temperature sensor Tdi too-low protection
43-1 Discharge temperature sensor Td1 too-low protection
45 Communication failure between outdoor units
46-0 Communication failure with INV1 module board
46-1 Communication failure with INV2 module board
46-4 Communication failure with fan 1 module board
46-5 Communication failure with fan 2 module board
47 Communication failure with the wireless module
51-0 LEVa1 overcurrent protection
51-1 LEVa2 overcurrent protection
52-0 LEVa1 disconnection fault
52-1 LEVa2 disconnection fault
75-0 High- and low-pressure difference is too small
76-0 Outdoor-unit count does not match the EEPROM setting
76-1 Outdoor-unit address does not match the EEPROM setting
76-2 Outdoor-unit capacity does not match the EEPROM setting
83 Incorrect parameter setting or outdoor-unit match
99-X Program self-fault; X=0 to 5
108 Module rectifier-side software transient overcurrent
109 Module rectifier-side current-detection circuit anomaly
110 Module hardware overcurrent
111 Compressor out of step
112 High temperature of the module radiator
113 Module overload
114 Module DC-bus undervoltage
115 Module DC-bus overvoltage
116 Communication error between the module and control board
117 Module software overcurrent
118 Module boot failure
119 Module current-detection connection error
120 Module power-supply interruption error
121 Module control-board power-supply abnormality
122 Module radiator temperature sensor abnormality
123 Module rectifier-side hardware transient overcurrent
124 Three-phase power-supply failure
125-0/1 Compressor frequency mismatch
125-4/5 Fan-speed mismatch or locked rotor
127 MCU reset fault detected by the host
555.0 Indoor-unit connected capacity is above 150% or below 50% of outdoor-unit capacity
555.1 Heating standby because outdoor ambient temperature is above 26 degrees Celsius
555.2 Low-pressure gas standby
555.3 Cooling standby because outdoor ambient temperature is above 54 degrees Celsius
555.5 Power-restriction standby because maximum-capacity output is set to 0%
555.6 Password-lock standby
555.8 No trial running
01 Indoor ambient temperature sensor Ta failure
02 Indoor coil temperature sensor Tc1 failure
03 Indoor coil temperature sensor Tc2 failure
04 Indoor TW sensor failure
05 Indoor EEPROM failure Result 6 of 6 with this code and meaning. Expand for model and series details.
06 Communication failure between indoor and outdoor units Result 6 of 6 with this code and meaning. Expand for model and series details.
07 Communication failure between indoor unit and wired controller Result 6 of 6 with this code and meaning. Expand for model and series details.
08 Indoor drainage failure
09 Repeated indoor-unit address
0A Repeated central-control address
0C 50 Hz zero-crossing fault
20 Outdoor corresponding failure relayed by the indoor unit
01 Indoor ambient-temperature sensor failure Result 1 of 7 with this code and meaning. Expand for model and series details.
02 Indoor refrigerant-pipe temperature sensor failure Result 1 of 7 with this code and meaning. Expand for model and series details.
04 Indoor control-board EEPROM failure Result 1 of 7 with this code and meaning. Expand for model and series details.
07 Communication failure between the indoor and outdoor units Result 3 of 9 with this code and meaning. Expand for model and series details.
LED5 0 / LED1 8 Communication failure between the wired controller and indoor unit
0C Condensate-drainage system failure Result 1 of 7 with this code and meaning. Expand for model and series details.
0D Indoor zero-cross signal failure Result 1 of 7 with this code and meaning. Expand for model and series details.
0E Indoor DC fan-motor failure Result 1 of 6 with this code and meaning. Expand for model and series details.
01 Indoor ambient-temperature sensor failure Result 2 of 7 with this code and meaning. Expand for model and series details.
02 Indoor refrigerant-pipe temperature sensor failure Result 2 of 7 with this code and meaning. Expand for model and series details.
04 Indoor control-board EEPROM failure Result 2 of 7 with this code and meaning. Expand for model and series details.
07 Communication failure between the indoor and outdoor units Result 4 of 9 with this code and meaning. Expand for model and series details.
08 Communication failure between the wired controller and indoor unit
0C Condensate-drainage system failure Result 2 of 7 with this code and meaning. Expand for model and series details.
0D Indoor zero-cross signal failure Result 2 of 7 with this code and meaning. Expand for model and series details.
0E Indoor DC fan-motor failure Result 2 of 6 with this code and meaning. Expand for model and series details.
01 Indoor ambient-temperature sensor failure Result 3 of 7 with this code and meaning. Expand for model and series details.
02 Indoor refrigerant-pipe temperature sensor failure Result 3 of 7 with this code and meaning. Expand for model and series details.
04 Indoor control-board EEPROM failure Result 3 of 7 with this code and meaning. Expand for model and series details.
07 Communication failure between the indoor and outdoor units Result 5 of 9 with this code and meaning. Expand for model and series details.
LED4 0 / LED3 8 Communication failure between the wired controller and indoor unit
0C Condensate-drainage system failure Result 3 of 7 with this code and meaning. Expand for model and series details.
0D Indoor zero-cross signal failure Result 3 of 7 with this code and meaning. Expand for model and series details.
0E Indoor DC fan-motor failure Result 3 of 6 with this code and meaning. Expand for model and series details.
01 Indoor ambient-temperature sensor failure Result 4 of 7 with this code and meaning. Expand for model and series details.
02 Indoor refrigerant-pipe temperature sensor failure Result 4 of 7 with this code and meaning. Expand for model and series details.
04 Indoor control-board EEPROM failure Result 4 of 7 with this code and meaning. Expand for model and series details.
07 Communication failure between the indoor and outdoor units Result 6 of 9 with this code and meaning. Expand for model and series details.
07* flashing Communication failure between the wired controller and indoor unit Result 1 of 4 with this code and meaning. Expand for model and series details.
0C Condensate-drainage system failure Result 4 of 7 with this code and meaning. Expand for model and series details.
0D Indoor zero-cross signal failure Result 4 of 7 with this code and meaning. Expand for model and series details.
0E Indoor DC fan-motor failure Result 4 of 6 with this code and meaning. Expand for model and series details.
01 Indoor ambient-temperature sensor failure Result 5 of 7 with this code and meaning. Expand for model and series details.
02 Indoor refrigerant-pipe temperature sensor failure Result 5 of 7 with this code and meaning. Expand for model and series details.
04 Indoor control-board EEPROM failure Result 5 of 7 with this code and meaning. Expand for model and series details.
07 Communication failure between the indoor and outdoor units Result 7 of 9 with this code and meaning. Expand for model and series details.
07* flashing Communication failure between the wired controller and indoor unit Result 2 of 4 with this code and meaning. Expand for model and series details.
0C Condensate-drainage system failure Result 5 of 7 with this code and meaning. Expand for model and series details.
0D Indoor zero-cross signal failure Result 5 of 7 with this code and meaning. Expand for model and series details.
0E Indoor DC fan-motor failure Result 5 of 6 with this code and meaning. Expand for model and series details.
01 Indoor ambient-temperature sensor failure Result 6 of 7 with this code and meaning. Expand for model and series details.
02 Indoor refrigerant-pipe temperature sensor failure Result 6 of 7 with this code and meaning. Expand for model and series details.
04 Indoor control-board EEPROM failure Result 6 of 7 with this code and meaning. Expand for model and series details.
07 Communication failure between the indoor and outdoor units Result 8 of 9 with this code and meaning. Expand for model and series details.
07* flashing Communication failure between the wired controller and indoor unit Result 3 of 4 with this code and meaning. Expand for model and series details.
0C Condensate-drainage system failure Result 6 of 7 with this code and meaning. Expand for model and series details.
0D Indoor zero-cross signal failure Result 6 of 7 with this code and meaning. Expand for model and series details.
0E Communication failure between the indoor PCB and fan-motor controller
0F Indoor fan-motor overcurrent Result 2 of 2 with this code and meaning. Expand for model and series details.
11 Fan-motor controller DC voltage too high or too low
12 Fan-motor controller temperature too high
13 Indoor fan-motor synchronisation lost
LED4 M / LED3 N Outdoor-unit fault indication
E1 Indoor ambient-temperature sensor failure Result 1 of 2 with this code and meaning. Expand for model and series details.
E2 Indoor refrigerant-pipe temperature sensor failure Result 1 of 2 with this code and meaning. Expand for model and series details.
E4 Indoor control-board EEPROM failure
E7 Communication failure between the indoor and outdoor units
E8 Communication failure between the wired controller and indoor unit Result 1 of 2 with this code and meaning. Expand for model and series details.
E10 Condensate-drainage system failure
C1 Indoor zero-cross signal failure
E14 Indoor DC fan-motor failure
01 Indoor ambient-temperature sensor failure Result 7 of 7 with this code and meaning. Expand for model and series details.
02 Indoor refrigerant-pipe temperature sensor failure Result 7 of 7 with this code and meaning. Expand for model and series details.
04 Indoor control-board EEPROM failure Result 7 of 7 with this code and meaning. Expand for model and series details.
07 Communication failure between the indoor and outdoor units Result 9 of 9 with this code and meaning. Expand for model and series details.
07* flashing Communication failure between the wired controller and indoor unit Result 4 of 4 with this code and meaning. Expand for model and series details.
0C Condensate-drainage system failure Result 7 of 7 with this code and meaning. Expand for model and series details.
0D Indoor zero-cross signal failure Result 7 of 7 with this code and meaning. Expand for model and series details.
0E Indoor DC fan-motor failure Result 6 of 6 with this code and meaning. Expand for model and series details.
E1 Indoor ambient-temperature sensor failure Result 2 of 2 with this code and meaning. Expand for model and series details.
E2 Indoor refrigerant-pipe temperature sensor failure Result 2 of 2 with this code and meaning. Expand for model and series details.
E6 Outdoor high pressure exceeds the set point
E7 Overvoltage protection activated
E8 Communication failure between the wired controller and indoor unit Result 2 of 2 with this code and meaning. Expand for model and series details.
E9 Control-signal failure between the outdoor and indoor units
EA Indoor DC fan-motor failure
FC Indoor pipe temperature is too high
1 flash Outdoor EEPROM failure
2 flashes IPM power-module failure
4 flashes Communication failure between the outdoor PCB and SPDU module
5 flashes High-pressure switch protection
6 flashes SPDU overvoltage or undervoltage protection
8 flashes Compressor discharge-temperature overheat protection
9 flashes Outdoor DC fan-motor failure
10 flashes Outdoor refrigerant-pipe temperature sensor failure
11 flashes Compressor suction-temperature sensor failure
12 flashes Outdoor ambient-temperature sensor failure
13 flashes Outdoor temperature-sensor failure (the source description names ambient temperature while its diagnostic note names the compressor discharge sensor)
15 flashes Communication failure between the indoor and outdoor units
16 flashes Refrigerant shortage detected
17 flashes Four-way valve reversing failure
18 flashes Compressor seizure on SPDU models
19 flashes PWM module circuit-selection failure
25 flashes Compressor U-phase overcurrent
25 flashes Compressor V-phase overcurrent
25 flashes Compressor W-phase overcurrent
1 Outdoor EEPROM failure Result 1 of 2 with this code and meaning. Expand for model and series details.
2 PIM hardware overcurrent Result 2 of 2 with this code and meaning. Expand for model and series details.
3 Compressor overcurrent during deceleration Result 2 of 2 with this code and meaning. Expand for model and series details.
4 Communication failure between the outdoor control PCB and compressor driver
5 Compressor overcurrent detected by the control PCB
6 DC-bus or AC input overvoltage protection Result 2 of 2 with this code and meaning. Expand for model and series details.
7 Compressor-current sampling-circuit failure
8 Compressor discharge-temperature overheat protection
9 Outdoor DC fan-motor failure Result 1 of 2 with this code and meaning. Expand for model and series details.
10 Outdoor defrost-temperature sensor Te failure
11 Compressor suction-temperature sensor Ts failure
12 Outdoor ambient-temperature sensor Ta failure
13 Compressor discharge-temperature sensor Td failure
14 PFC circuit high-voltage protection Result 2 of 2 with this code and meaning. Expand for model and series details.
15 Communication failure between the indoor and outdoor units Result 1 of 2 with this code and meaning. Expand for model and series details.
16 Refrigerant shortage or discharge-pipe blockage Result 2 of 2 with this code and meaning. Expand for model and series details.
17 Four-way valve reversing failure Result 1 of 2 with this code and meaning. Expand for model and series details.
18 Compressor motor lost synchronisation
19 DC-bus or AC input undervoltage protection Result 2 of 2 with this code and meaning. Expand for model and series details.
20 Indoor pipe-temperature too-high protection Result 2 of 2 with this code and meaning. Expand for model and series details.
21 Indoor pipe-temperature too-low protection Result 2 of 2 with this code and meaning. Expand for model and series details.
22 PFC circuit overcurrent protection Result 2 of 2 with this code and meaning. Expand for model and series details.
23 Compressor driver-module overtemperature protection Result 2 of 2 with this code and meaning. Expand for model and series details.
24 Compressor startup failure Result 2 of 3 with this code and meaning. Expand for model and series details.
25 Compressor driver-module input overcurrent
26 Compressor driver-module phase loss
27 Driver-module input-current sampling-circuit failure
28 Compressor wiring not detected Result 2 of 2 with this code and meaning. Expand for model and series details.
37 Compressor phase overcurrent detected by the driver module Result 2 of 2 with this code and meaning. Expand for model and series details.
38 Driver-module ambient-temperature sensor failure
39 Condenser-temperature sensor TC failure
42 High-pressure switch failure Result 1 of 2 with this code and meaning. Expand for model and series details.
43 Low-pressure switch failure Result 1 of 2 with this code and meaning. Expand for model and series details.
44 Outdoor condenser-temperature too-high protection Result 2 of 2 with this code and meaning. Expand for model and series details.
45 System low-pressure protection Result 2 of 2 with this code and meaning. Expand for model and series details.
1 Outdoor EEPROM failure Result 2 of 2 with this code and meaning. Expand for model and series details.
2 IPM overcurrent or short circuit
4 Communication failure between the outdoor ECU board and module
5 Power-module overload
6 Power-module voltage too low or too high
8 Compressor discharge temperature too high
9 Outdoor DC fan-motor failure Result 2 of 2 with this code and meaning. Expand for model and series details.
10 Defrost-temperature sensor failure
11 Compressor suction-temperature sensor failure
12 Outdoor ambient-temperature sensor failure
13 Compressor discharge-temperature sensor failure
15 Communication failure between the indoor and outdoor units Result 2 of 2 with this code and meaning. Expand for model and series details.
17 Four-way valve reversing failure Result 2 of 2 with this code and meaning. Expand for model and series details.
18 Phase imbalance detected
20 Indoor unit overheated
23 Power module overheated
24 Compressor startup failure Result 3 of 3 with this code and meaning. Expand for model and series details.
25 Power-module input overcurrent
26 MCU reset
27 Power-module current-detection circuit failure
28 Indoor unit A liquid-pipe temperature sensor failure
29 Indoor unit B liquid-pipe temperature sensor failure
30 Indoor unit C liquid-pipe temperature sensor failure
31 Indoor unit D liquid-pipe temperature sensor failure
32 Indoor unit A gas-pipe temperature sensor failure
33 Indoor unit B gas-pipe temperature sensor failure
34 Indoor unit C gas-pipe temperature sensor failure
35 Indoor unit D gas-pipe temperature sensor failure
36 Indoor unit E gas-pipe temperature sensor failure
38 Transient power interruption detected
39 Condenser temperature sensor failure
40 Indoor unit E liquid-pipe temperature sensor failure
42 High-pressure switch failure Result 2 of 2 with this code and meaning. Expand for model and series details.
43 Low-pressure switch failure Result 2 of 2 with this code and meaning. Expand for model and series details.
44 High-pressure switch protection
45 Low-pressure switch protection