Daikin VRV 3 Fault Codes
A1 PC board defect, E2 PROM defect
A3 Malfunction of drain level control system (S1L)
A6 Fan motor (M1F) lock, overload
A7 Malfunction of swing flap motor (M1S)
A9 Malfunction of moving part of electronic expansion valve (Y1E)
AF Drain level above limit
AJ Malfunction of capacity setting
C4 Malfunction of thermistor (R2T) for heat exchange
C5 Malfunction of thermistor (R3T) for gas pipes
C9 Malfunction of thermistor (R1T) for air inlet
CA Malfunction of thermistor for air inlet
CJ 898 Malfunction of thermostat sensor in remote control
Outdoor Unit
E1 PC board defect
E3 Actuation of high pressure switch
E4 Actuation of low pressure sensor
E5 9Compressor motor lock
E6 Standard compressor lock or over current
E7 Malfunction of outdoor unit fan motor
E9 Malfunction of moving part of electronic expansion valve (Y1E, Y2E)
F3 Abnormal discharge pipe temperature
F6 Refrigerant overcharged
H3 Failure of high pressure switch
H4 Actuation of low pressure switch
H7 Abnormal outdoor fan motor signal
H9 Malfunction of thermistor (R1T) for outdoor air
J2 Current sensor malfunction
J3 Malfunction of discharge pipe thermistor
J5 Malfunction of thermistor (R3T, R5T) for suction pipe
J6 Malfunction of thermistor (R6T) for heat exchanger
J7 Malfunction of receiver outlet liquid pipe thermistor (R7T)
J9 Malfunction of subcooling heat exchanger gas pipe thermistor
JA Malfunction of discharge pipe pressure sensor
JC Malfunction of suction pipe pressure sensor
L0 Inverter system error
L1 Malfunction of PC board
L4 Malfunction of inverter radiating fin temperature rise
L5 DC output overcurrent of inverter compressor
L8 Inverter current abnormal
L9 Inverter start up error
LA Malfunction of power unit
LC Malfunction of transmission between inverter and control PC board
P1 High voltage of capacitor in main inverter circuit
System
U0 Low pressure drop due to refrigerant shortage or electronic expansion valve failure
U1 Reverse phase / open phase
U2 Power supply insufficient or instantaneous failure
U3 Check operation is not completed
U4 Malfunction of transmission between indoor and outdoor units
U5 Malfunction of transmission between remote control and indoor unit
U5 Failure of remote control PC board or setting during control by remote control
U7 Malfunction of transmission between outdoor units
U8 Malfunction of transmission between main and sub remote controls
U9 Malfunction of transmission between indoor unit and outdoor unit in the same system
UA Improper combination of indoor and outdoor units,indoor units and remote control
UC Address duplication of central remote control
UE Malfunction of transmission between central remote control and indoor unit
UF Refrigerant system not set, incompatible wiring /piping
UH Malfunction of system, refrigerant system address undefined
Central remote control and Schedule Timer
UE Malfunction of transmission between central remote control and indoor unit
M1 Central remote control PC board defect Schedule timer PC board defect
M8 Malfunction of transmission between optional controllers for centralized control
MA Improper combination of optional controllers for centralized control
MC Address duplication, improper setting
Heat Reclaim Ventilation
64 Indoor unitÃs air thermistor error
65 Outside air thermistor error
68 Malfunction of HVU
6A Damper system alarm
6A Damper system + thermistor error
6F Malfunction of simple remote control
94 Internal transmission error
