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Daikin Fault Basic Fault Codes
A0  Indoor error of external protective device
A1  Indoor printed Circuit board
A3  Indoor malfunction of drain level control system
A5  Indoor freeze up prevention
A6  Indoor fan motor lock/overload
A7  Indoor malfunction of swing motor flap
A9  Indoor malfunction of EEV
AF  Indoor drain level above limit
AJ  Indoor malfunction of capacity set device
C3  Indoor malfunction of drain thermister
C4  Indoor malfunction of liquid pipe thermister
C5  Indoor malfunction of gas pipe thermister
C7  Indoor lower Louvre limit switch/motor
C9  Indoor malfunction of air thermister
CC Indoor malfunction of moisture sensor
CA Indoor malfunction of discharge air thermistor
CJ  Indoor malfunction of remote control thermistor
CE  Indoor malfunction of radiant heat sensor
E0  Outdoor activation of outdoor safety device
E1  Outdoor printed circuit board defect
E3  Outdoor activation of high pressure switch
E4  Outdoor activation of low pressure switch
E5  Outdoor activation of compressor over heat protection or motor lock
E6  Outdoor compressor start up, lock or over current
E7  Outdoor fan motor lock, overload
E8  Outdoor inverter input over current
E9  Outdoor malfunction of EEV
EA  Outdoor four way valve defect
F3  Outdoor abnormal discharge pipe temperature
F6  Outdoor refrigerant overcharged
FC  Outdoor low pressure drop
H3  Outdoor high pressure drop defect
H4  Outdoor low pressure switch defect
H6  Outdoor motor position detection sensor error
H7  Outdoor fan motor position sensor error
H8  Outdoor Current transformer error
H9  Outdoor malfunction of air thermistor
J1  Outdoor malfunction of pressure sensor
J2  Outdoor current sensor malfunction
J3  Outdoor malfunction of discharge pipe thermister
J4  Outdoor low pressure saturation thermistor
J5  Outdoor malfunction of suction pipe thermistor
J6  Outdoor malfunction of heat exchange thremistor
J7  Outdoor malfunction of heat exchanger liquid thermistor
J8  Outdoor malfunction of liquid pipe thermistor
J9  Outdoor malfunction of gas pipe thermistor
JA  Outdoor malfunction of discharge pipe pressure sensor
JC  Outdoor malfunction of suction pipe pressure sensor
L0  Outdoor malfunction of inverter
L3  Outdoor malfunction of component box overheat
L4  Outdoor inverter cooling defect
L5  Outdoor compressor motor fault short circuit
L6  Outdoor compressor grounding or short circuit
L7  Outdoor input current
L8  Outdoor Compressor overload, motor lock
LA  Outdoor unit malfunction
LC  Outdoor transmission between inverter and outdoor unit
P1  outdoor inverter over ripple
P3  Outdoor thermistor abnormality
P4  Outdoor power unit humidity sensor malfunction
PJ  Outdoor failure of capacity set resistor
U0  System shortage of refrigerant or EEV failure
U1  System negative phase/open phase
U2  System power supply insufficient
U3  System wiring check operation not executed (also check for unit mismatch)
U4  System transmission between indoor and outdoor units
U5  System transmission to remote controller
U6  System malfunction transmission outdoor to BP unit
U7  System transmission between outdoor units (could also be between boards)
U8  System transmission between master and slave units
U9  transmission error between indoor and outdoor
UA  System excessive number of fan coils
UC  Address Duplication of central controllers
UE  Transmission error between units
UF  refrigeration system not set or connections three and four crossed
UH  System error Refrigeration set up
M1  printed circuit board defect
M8  Transmission error between central control units
MA  Improper combination of system controllers
MC  Address duplicated or wrong settings used
64  VAM Thermistor error indoor unit
65  VAM outdoor thermistor error
6A  VAM alarm damper system mechanical or thermistor failure
6F  VAM remote controller failure
6H  VAM malfunction of connector/door switch
94  VAM transmission failure internal

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