Daikin Air-Conditioner Error Codes
Indoor unit:
A0 - the common protective device has tripped
A1 - The indoor circuit board is faulty
A2 - the fan motor is blocked
A3 - an inadmissible level in the drainage system
A4 - defective heat exchanger
A5 - heat exchanger overheating
A6 - the fan motor is overloaded
A7 - shutter drive defective
A8 - current overload (common)
A9 - the electronic expansion valve is defective
AA - overheated heater
AH - the air filter clogged
AC - running idle work
AJ - Performance is incorrect (internal block)
AE - not enough water supply
AF - Damage to the humidifier
C0 - common sensor fault
C3 - Drainage level sensor defective
C4 - heat exchanger temperature sensor 1 defective
C5 - heat exchanger temperature sensor 2 defective
C6 - the fan motor is overloaded, the sensor is blocked
C7 - Shutter drive sensor out of order
C8 - input current sensor out of order
C9 - breakdown of the incoming air thermistor
CA - failure of the output air thermistor
CH - the dirt sensor works
CC - humidity sensor breakdown
CJ - the temperature sensor on the remote control does not work
CE - Radiation sensor failure
CF - high pressure sensor out of order
Outdoor unit:
E0 - the common protective device has tripped
E1 - The outdoor unit PCB is faulty
E3 - operates HPS (high pressure sensor)
E4 - runs LPS (low pressure sensor)
E5 - Compressor motor overloaded, overheating relay tripped
E6 - Compressor motor is blocked by overcurrent
E7 - the fan motor is blocked by overcurrent
E8 - current overload (common)
E9 - electronic expansion valve defective
AH - the pump is blocked
EC - peak water temperature
EJ - Additional protection device has tripped
EE - critical water level in the drainage system
EF - failure of the heat storage unit
H0 - common sensor fault
H1 - air temperature sensor defective
H2 - system power supply is defective
H3 - high pressure sensor defective
H4 - low pressure sensor defective
H5 - overload, compressor stop
H6 - compressor overload, the system is locked
H7 - fan overload, the system is locked
H8 is the drop in the input voltage
H9 - anomalous inlet air temperature
HA - abnormal outlet air temperature
HH - water pump blocked
HC - signal of the hot water sensor
HE - signal of the drainage level sensor
HF - heat storage unit higher than failure
F0 - protective system devices No.1 and No.2 function
F1 - the protective system device №1 is functioning
F2 - the protective system device №2 is functioning
F3 - abnormally high discharge pipe temperature
F6 - Inadmissible temperature in the heat exchanger
FA - unacceptable discharge air pressure
FH - overheating of oil
FC - Inadmissible intake air pressure
FE - unacceptable oil pressure
FF - unacceptable oil level indicator
J0 - thermistor defective
J1 - General malfunction of the pressure sensor
J2 - current sensor defective
J3 - breakdown of the temperature sensor of the air injection pipe
J4 - the sensor is not working at the saturation point of low pressure
J5 - the thermistor is defective on the suction pipe
J6 - the thermistor is defective on the heat exchanger (1)
J7 - the thermistor is defective on the heat exchanger (2)
J8 - the thermistor is faulty on the liquid pipe
J9 - thermistor defective on gas pipe
JA-discharge sensor defective
JH - temperature sensor mass defective
JC - suction pressure sensor defective
JE - oil pressure switch defective
JF - oil level sensor defective
L0 - the inverter system is faulty
L3 - control box temperature increased
L4 - the temperature of the power transistor heatsink is increased
L5 - short-time overload of DC output
L6 - short-time overload of alternating current at the output
L7 - common input current high
L8 - electronic thermal relay delay
L9 - safety stop
LA - power transistor failure
LC - disconnection from the inverter in the outdoor unit
P0 - lack of gas (due to icing of heat storage equipment)
P1 - no phase, power supply in unbalance
P3 - overheating of the control unit
P4 - the power transistor (the radiator temperature sensor) has failed.
P5 - DC sensor defective
P6 - output DC / AC sensor defective
P7 - input current (in multisystem) is increased
PJ - outdoor unit, performance is incorrectly set
System:
U0 - reduced pressure in the system due to lack of gas
U1 - phases are incorrectly connected (phases must be changed)
U2 - low voltage in the power supply
U3 - common error in data transfer
U4 - communication failure between outdoor and indoor units
U5 - communication failure between the remote control and the indoor unit
U6 - communication failure between the main and subordinate indoor units
U7 - communication failure between the battery or outdoor units
U8 - communication between control panels is broken
U9 - communication with another system is broken
UA - the parameters of the outdoor unit
UH - address not entered (outdoor / indoor unit)
UC address is set incorrectly on the CPU
UJ - communication with peripheral equipment is broken
UE - communication failure between the CPU and the indoor unit
UF - incorrect installation: wiring / piping
M1 - the printed circuit board (central control equipment) is faulty
M8 - communication failure with equipment
MA - connection of equipment
MC - dual assignment of equipment address
Other errors:
31 - circulating air humidity sensor defective
32 - Outside air humidity sensor defective
33 - Supply air sensor defective
34 - circulating air temperature sensor defective
35 - Outside air temperature sensor defective
36 - the temperature sensor of the control panel is defective
3A - Water leakage sensor No. 1 is defective
3H - water leakage sensor No. 2 defective
3C - dew condensation sensor defective
40 - humidifier valve defective
41 - cold water valve faulty
42 - hot water valve faulty
43 - cold water heat exchanger defective
44 - hot water heat exchanger defective
51 - the supply air fan motor is overloaded
52 - circulating air fan motor is overloaded
53 - Inverter power failure
54 - Inverter air flow disturbed
60 - general error
61 - PCB is defective
62 - Inadmissible ozone concentration
63 - contamination sensor defective
64 - room temperature sensor is defective
65 - Sensor for external air temperature monitoring system defective
68 - high voltage system failed
6A - the damper damper of the system has failed
6H - the door switch is open
6C - Humidifier element requires replacement
6J - High-efficiency filter requires replacement
6E - Odor removal catalyst requires replacement
6F - simplified control panel defective