TROUBLESHOOTING
Troubleshooting
Fault diagnosis by remote controller
• In case the air conditioner is malfunctioning, you can check the error
code via the remote controller before consulting with service
personnel and informing them of the malfunction code.
1. When is held down for about 5 seconds,
“
” blinks in the temperature display section.
2. Press
repeatedly until a continuous beep is
produced.
• The code indication changes as shown below, and noties you
with a long beep.
CODE MEANING
SYSTEM
00 NORMAL
UA INDOOR-OUTDOOR UNIT COMBINATION FAULT
U0 REFRIGERANT SHORTAGE
U2 DROP VOLTAGE OR MA N CIRCUIT OVERVOLTAGE
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
E1 CIRCUIT BOARD FAULT
E5 OL STARTED
E6 FAULTY COMPRESSOR START UP
E7 DC FAN MOTOR FAULT
F3 HIGH TEMPERATURE DISCHARGE PIPE CONTROL
F6 HIGH PRESSURE CONTROL (IN COOLING)
F8 OPERATION HALT DUE TO COMPRESSOR NTERNAL TEMPERATURE ABNORMALITY
H0 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 HEATSINK TEMPERATURE SENSOR
NOTE
• A short beep and 2 consecutive beeps indicate non-corresponding codes.
• To cancel the code display, hold
down for about 5 seconds. The code display also clears if
no button is pressed for 1 minute.
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