Daikin FTKS L Series, Engineering Data

Page: 147 / 248

ED041204 Operation Manual
Split Type Air Conditioners FTK(X)S-L Series 145
39
Troubleshooting
„
Fault diagnosis by remote controller
In the ARC452A series, the temperature display sections on the main unit indicate •
corresponding codes.
When
1.
is held down for
5 seconds, a “ ” indication fl ashes on the
temperature display section.
Press
2.
repeatedly until a continuous
beep is produced.
The code indication changes as shown below, and notifi es with a long beep. •
CODE MEANING
SYSTEM
00 NORMAL
UA INDOOR-OUTDOOR UNIT COMBINATION FAULT
U0 REFRIGERANT SHORTAGE
U2
DROP VOLTAGE OR MAIN CIRCUIT OVERVOLTAGE
U4 FAILURE OF TRANSMISSION (BETWEEN INDOOR UNIT AND OUTDOOR UNIT)
INDOOR
UNIT
A1 INDOOR PCB DEFECTIVENESS
A5 HIGH PRESSURE CONTROL OR FREEZE-UP PROTECTOR
A6 FAN MOTOR FAULT
C4 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
C9 FAULTY SUCTION AIR TEMPERATURE SENSOR
OUTDOOR
UNIT
EA COOLING-HEATING SWITCHING ERROR
E1 CIRCUIT BOARD FAULT
E5 OL STARTED
E6 FAULTY COMPRESSOR START UP
E7 DC FAN MOTOR FAULT
E8 OVERCURRENT INPUT
F3
HIGH TEMPERATURE DISCHARGE PIPE CONTROL
F6 HIGH PRESSURE CONTROL (IN COOLING)
H0 SENSOR FAULT
H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR
H8 DC CURRENT SENSOR FAULT
H9
FAULTY SUCTION AIR TEMPERATURE SENSOR
J3 FAULTY DISCHARGE PIPE TEMPERATURE SENSOR
J6 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
L3 ELECTRICAL PARTS HEAT FAULT
L4 HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK
L5 OUTPUT OVERCURRENT
P4 FAULTY INVERTER CIRCUIT HEATSINK TEMPERATURE SENSOR
NOTE
A short beep and 2 consecutive beeps indicate non-corresponding codes. •
To cancel the code display, hold the • down for 5 seconds. The code display also cancel itself if the button is not pressed for
1 minute.
01_EN_3P291209-1.indd 39 12/8/2011 9:19:02 PM