Service manual

Instruction SiEBE12-625
188 List of Functions
FAULT DIAGNOSIS BY REMOTE CONTROL
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 TIMER CANCEL button repeatedly until a continuous beeep 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 PROTECTION
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 COMPRESSED START UP
E7 DC FAN MOTOR FAULT
E8 OPERATION HALT DUE TOT DETECTION OF INPUT OVER CURRENT
F3 HIGH TEMPERATURE DICHARGE PIPE CONTROL
F6 HIGH PRESSURE CONTROL (IN COOLING)
H6 OPERATION HALT DUE TO DETECTION OF INPUT OVER CURRENT
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
C
ON
TEMP
ON/OFF
POWERFUL
HOME LEAVE
MODE
TIMER
FA N SWING
SILENT SENSOR
ON CANCEL
OFF
TIMER CANCEL button
It cancels the timer setting.
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 display also cancel itself if the
button is not pressed for 1 minute.