Indoor Unit - Daikin FTXR50EV1B9 Operation Manual

■ FAULT DIAGNOSIS BY REMOTE CONTROLLER
In the ARC447A1, the temperature display sections on the main unit indicate corresponding codes.
1. Hold the timer cancel button down for 5 seconds, with the remote controller set toward the

indoor unit.

2. The temperature display on the remote controller changes t o the error code display and a long
beet notifies this indication change.
SYSTEM
INDOOR UNIT
OUTDOOR UNIT
HUMIDIFY UNIT
NOTE
To cancel indication of error code, hold the timer cancel button down for 5 seconds.
The code display also cancels itself if the button is not pressed for 1 minute.
■English
CODE
00
UA
U0
U2
U4 FAILURE OF TRANSMISSION (BETWEEN INDOOR UNIT AND OUTDOOR UNIT)
U7
AH
A1
A5 HIGH PRESSURE CONTROL OR FREEZE-UP PROTECTOR
A6
CC
C4 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
C7
C9
UA
EA
E1
E5
E6
E7
E8
FA
F3
F6
H0
H1
H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR
H8
H9
J3 FAULTY DISCHARGE PIPE TEMPERATURE SENSOR
J6 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
L3
L4 HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK
L5
P4 FAULTY INVERTER CIRCUIT HEATSINK TEMPERATURE SENSOR
PA
PH HUMIDIFYING FAN OUTLET THERMISTOR FAULT, HEATER TEMPERATURE FAULT
P9
CANCEL button
It cancels the timer setting.
MEANING
NORMAL
INDOOR-OUTDOOR UNIT COMBINATION FAULT
REFRIGERANT SHORTAGE
DROP VOLTAGE OR MAIN CIRCUIT OVERVOLTAGE
CIRCUIT BOARD TRANSMISSION FAULT
STREAMER FAULT
INDOOR PCB DEFECTIVENESS
FAN MOTOR FAULT
HUMIDITY SENSOR FAULT
FRONT PANEL OPEN/CLOSE FAULT
FAULTY SUCTION AIR TEMPERATURE SENSOR
HOSE LENGTH NOT SET
COOLING-HEATING SWITCHING FAULT
CIRCUIT BOARD FAULT
OL STARTED
FAULTY COMPRESSOR START UP
DC FAN MOTOR FAULT
OVERCURRENT INPUT
EJECTION PRESSURE FAULT
HIGH TEMPERATURE DISCHARGE PIPE CONTROL
HIGH PRESSURE CONTROL (IN COOLING)
SENSOR FAULT
DAMPER FAULT
CT ABNORMALITY
FAULTY SUCTION AIR TEMPERATURE SENSOR
ELECTRICAL PARTS HEAT FAULT
OUTPUT OVERCURRENT
HEATER LINE BROKEN FAULT
HUMIDIFYING FAN LOCK
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