Daikin FTXS20KVMN Operation Manual page 40

Troubleshooting
CODE
00
UA
SYSTEM U0
U2
U4
A1
A5
INDOOR
A6
UNIT
C4
C9
EA
E1
E5
E6
E7
E8
F3
F6
OUTDOOR
H0
H6
UNIT
H8
H9
J3
J6
L3
L4
L5
P4
NOTE
• A short beep and 2 consecutive beeps indicate non-corresponding codes.
• To cancel the code display, hold the
1 minute.
39
Fault diagnosis by remote controller
• In the ARC452A series, the temperature display sections on the main unit indicate
corresponding codes.
1.
When
5 seconds, a "
temperature display section.
2.
Press
beep is produced.
• The code indication changes as shown below, and notifi es with a long beep.
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
OVERCURRENT INPUT
HIGH TEMPERATURE DISCHARGE PIPE CONTROL
HIGH PRESSURE CONTROL (IN COOLING)
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
down for 5 seconds. The code display also cancel itself if the button is not pressed for
is held down for
" indication fl ashes on the
repeatedly until a continuous
MEANING