Daikin FTHF50VVMV Operation Manual page 32

TROUBLESHOOTING
Troubleshooting
„ 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
" " blinks in the temperature display section.
2. Press
produced.
• The code indication changes as shown below, and notifies you
with a long beep.
CODE
00
UA
SYSTEM
U0
U2
A1
A5
INDOOR UNIT
A6
C4
C9
EA
E1
E5
E6
E7
F3
F6
F8
OUTDOOR
H0
UNIT H6
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
no button is pressed for 1 minute.
30
is held down for about 5 seconds,
repeatedly until a continuous beep is
NORMAL
INDOOR-OUTDOOR UNIT COMBINATION FAULT
REFRIGERANT SHORTAGE
DROP VOLTAGE OR MA N CIRCUIT OVERVOLTAGE
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 NTERNAL 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
down for about 5 seconds. The code display also clears if
MEANING