Troubleshooting
Troubleshooting
Fault diagnosis by remote controller
The remote controller can receive relevant error codes from the indoor unit.
1. When (CANCEL) is held down for about 5 seconds," DD" blinks in the
temperature display section.
2. Press [CANCEL] repeatedly until a long 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
NOTE
• A short beep indicates non-corresponding codes.
• To cancel the code display, hold down [CANCEL) for about 5 seconds.
The code display also cancels itself if the button is not pressed for 1 minute.
D
16
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
