Troubleshooting
Troubleshooting
D
Fault diagnosis by remote controller
The remote controller can receive a corresponding error code from the indoor unit.
1. When [cANcEL] is held down for 5 seconds, a" DD "indication blinks on the
temperature display section.
2. Press [CANCEL] repeatedly until a continuous beep is produced.
• The code indication changes as shown below, and notifies with a long beep.
CODE
MEANING
00
NORMAL
UA
INDOOR-OUTDOOR UNIT COMBINATION FAULT
SYSTEM
uo
REFRIGERANT SHORTAGE
U2
DROP VOLTAGE OR
MAIN
CIRCUIT OVERVOLTAGE
U4
FAILURE OF TRANSMISSION (BETWEEN INDOOR UNIT AND OUTDOOR UNIT}
A1
INDOOR PCB DEFECTIVENESS
A5
FREEZE-UP PROTECTOR
INDOOR
A6
FAN MOTOR FAULT
UNIT
C4
FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
C9
FAULTY SUCTION AIR TEMPERATURE SENSOR
EA
COOLING-HEATING SWITCHING ERROR
E1
CIRCUIT BOARD FAULT
E5
OL STARTED
E6
FAULTY COMPRESSOR START UP
E7
DC FAN MOTOR FAULT
EB
OVERCURRENT INPUT
F3
HIGH TEMPERATURE DISCHARGE PIPE CONTROL
F6
HIGH PRESSURE CONTROL (IN COOLING)
OUTDOOR UNIT
HO
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 HEATSINKTEMPERATURE SENSOR
NOTE
18
• A short beep indicates non-corresponding codes.
• To cancel the code display, hold down (cANcaJ for 5 seconds.
The code display also cancels itself if the button is not pressed for 1 minute.
DAIKIN INDUSTRIES, LTD.
Head office:
Osaka Umeda Twin Towers South
1-13-1,
Umeda
,
Kita-ku
,
Osaka 530-0001
,
Japan
Tokyo o
ff
ice:
Y
aesu Central Tower
,
Tokyo Midtown
Y
aesu
,
2-2-1
,
Y
aesu
,
Chuo-ku
,
Tokyo
,
104-0028
,
Japan
http://www.daikin.com
Summary of Contents for FTXF50UV16V
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