Daikin FTKQ09XV2S Operation Manual page 31

„ Fault diagnosis by remote controller
In case the air conditioner is malfunctioning, you can check the error code via
the remote controller before consulting with service personnel and informing
them of the malfunction code�
1. When
2. Press
NOTE
• A short beep and 2 consecutive beeps indicate non-corresponding codes�
• To cancel the code display, hold
no button is pressed for 1 minute�
is held down for about 5 seconds,
" " blinks in the temperature display section.
repeatedly until a continuous beep is
produced.
• The code indication changes as shown below, and notifies you with a
long beep�
CODE
00
UA
U0
SYSTEM
U2
U4
A1
A5
INDOOR
A6
UNIT
C4
C9
EA
E1
E5
E6
E7
F3
F6
F8
H0
OUTDOOR
UNIT
H6
H8
H9
J3
J6
L3
L4
L5
P4
down for about 5 seconds. The code display also clears if
WHEN THE NEED ARISES
MEANING
NORMAL
INDOOR-OUTDOOR UNIT COMBINATION FAULT
REFRIGERANT SHORTAGE
DROP VOLTAGE OR MAIN CIRCUIT OVERVOLTAGE
FAILURE OF TRANSMISSION (BETWEEN INDOOR UNIT
AND OUTDOOR UNIT)
INDOOR PCB DEFECTIVENESS
HIGH PRESSURE CONTROL OR FREEZE-UP PROTECTOR
FAN MOTOR FAULT
FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
FAULTY SUCTION AIR TEMPERATURE SENSOR
COOLING-HEATING SWITCHING ERROR
CIRCUIT BOARD FAULT
OL STARTED
FAULTY COMPRESSOR START UP
DC FAN MOTOR FAULT
HIGH TEMPERATURE DISCHARGE PIPE CONTROL
HIGH PRESSURE CONTROL (IN COOLING)
OPERATION HALT DUE TO COMPRESSOR INTERNAL
TEMPERATURE ABNORMALITY
SENSOR FAULT
OPERATION HALT DUE TO FAULTY POSITION
DETECTION SENSOR
DC CURRENT SENSOR FAULT
FAULTY SUCTION AIR TEMPERATURE SENSOR
FAULTY DISCHARGE PIPE TEMPERATURE SENSOR
FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
ELECTRICAL PARTS HEAT FAULT
HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK
OUTPUT OVERCURRENT
FAULTY INVERTER CIRCUIT HEATSINK TEMPERATURE
SENSOR
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