Manual
9
EnglishTo set the timer / Troubleshooting
The following symptoms do not indicate malfunction.
Symptom Cause
Mist emerges from indoor unit. • Condensation effect due to cooling process.
Water fl owing sound during operation. • Refrigerant fl ow inside the unit.
The room has a peculiar odour. • This may be due to damp smell emitted by the wall,
carpet, furniture or clothing.
Indoor fan stops occasionally during automatic
fan speed setting.
• This helps to remove the surrounding odour.
Operation is delayed a few minutes after
restarting.
• The delay is a protection to the unit’s compressor.
Outdoor unit emits water/steam. • Condensation or evaporation occurs on pipes.
TIMER indicator is always on. • The timer setting repeats daily once set.
Power indicator blinks during operation and the
indoor fan is stopped.
• The unit is in defrost mode, and the melted frost is
drained from the outdoor unit.
Indoor fan stops occasionally during heating
operation.
• To avoid unintended cooling effect.
POWER indicator blinks before the unit is
switched on.
• This is a preliminary step in preparation for the
operation when the ON timer has been set.
Cracking sound during operation. • Changes of temperature caused the expansion/
contraction of the unit.
Check the following before calling for servicing.
Symptom Check
Operation in HEAT/COOL mode is not working
effi ciently.
• Set the temperature correctly.
• Close all doors and windows.
•
Clear any obstruction at the air inlet and air outlet vents.
Noisy during operation. • Check if the unit has been installed at an incline.
The unit does not work. • Check if the circuit breaker is tripped.
• Check if timers have been set.
The following symptoms indicate malfunction.
Symptom Check
At remote control, OFF indicator does not
shown on remote control display but operation
LED OFF.
•
Use remote control to retrieve error code as follows.
OFF
/
ON
TEMP
TIMER/CLOCK
MODE
QUIET/
POWERFUL
FAN SPEED
MODE
CHECK RESET
AIR SWING
OFF/ON
CANCELCLOCK
SET
SELECTUP
DOWN
AC RC
OFF Indicator
Operation LED
3/12
Ensure the operation LED is in OFF condition.
1
Press
CHECK
for 5 seconds
2
Press TIMER
UP
or
DOWN
• If error code and abnormality can be
identifi ed, the operation LED will be ON
continuously, then jot down the error code.
3
Press
CHECK
again for 5 seconds to quit
checking
4
Reveal the error code to authorised dealer
Troubleshooting
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