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28 ■English
FAULT DIAGNOSIS BY REMOTE CONTROLLER
In the ARC433A series, the temperature display sections on the main unit indicate corresponding codes.
1. When the TIMER CANCEL button is held down for 5 seconds, a “ ” indication flashes on the
temperature display section.
2. Press the TIMER CANCEL button repeatedly until a continuous beep is produced.
• The code indication changes as shown below, and notifies with a long beep.
NOTE
Fault diagnosis
CODE MEANING
SYSTEM
00 NORMAL
U0 REFRIGERANT SHORTAGE
U2 DROP VOLTAGE OR MAIN CIRCUIT OVERVOLTAGE
U4 FAILURE OF TRANSMISSION (BETWEEN INDOOR UNIT AND OUTDOOR UNIT)
INDOOR
UNIT
A1 INDOOR PCB DEFECTIVENESS
A5 HIGH PRESSURE CONTROL OR FREEZE-UP PROTECTOR
A6 FAN MOTOR FAULT
C4 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
C9 FAULTY SUCTION AIR TEMPERATURE SENSOR
OUTDOOR
UNIT
EA COOLING-HEATING SWITCHING ERROR
E5 OL STARTED
E6 FAULTY COMPRESSOR START UP
E7 DC FAN MOTOR FAULT
E8 OPERATION HALT DUE TO DETECTION OF INPUT OVER CURRENT
F3 HIGH TEMPERATURE DISCHARGE PIPE CONTROL
H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR
H8 CT ABNORMALITY
H9 FAULTY SUCTION AIR TEMPERATURE SENSOR
J3 FAULTY DISCHARGE PIPE TEMPERATURE SENSOR
J6 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
L4 HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK
L5 OUTPUT OVERCURRENT
P4 FAULTY INVERTER CIRCUIT HEATSINK TEMPERATURE SENSOR
1.A short beep and two consecutive beeps indicate non-corresponding codes.
2.To cancel the code display, hold the TIMER CANCEL button down for 5 seconds. The code dis-
play also cancel itself if the button is not pressed for 1 minute.
F
ON
TEMP
ON/OFF
POWERFUL
HOME LEAVE
MODE
TIMER
FAN
SILENT
SWING
ON
CANCEL
OFF
SENSOR
F
TIMER CANCEL button
It cancels the timer setting.
01_EN_3P141693-2C (A4).fm Page 28 Saturday, September 25, 2004 11:39 AM