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Troubleshooting
The following symptoms do not indicate malfunction.
Symptom
Mist emerges from indoor unit.
Water flowing sound during operation.
The room has a peculiar odour.
Indoor fan stops occasionally during automatic
fan speed setting.
Operation is delayed a few minutes after
restarting.
Outdoor unit emits water/steam.
TIMER indicator is always on.
Power indicator blinks during operation and
the indoor fan is stopped.
Indoor fan stops occasionally during heating
operation.
POWER indicator blinks before the unit is
switched on.
Cracking sound during operation.
Discoloration of some plastic parts.
Check the following before calling for servicing.
Symptom
Operation in HEAT/COOL mode is not working
efficiently.
Noisy during operation.
The unit does not work.
The following symptoms indicate malfunction.
Symptom
At remote control, OFF indicator does not
shown on remote control display but operation
LED OFF.
Operation LED
OFF Indicator
TIMER/CLOCK
MODE
UP
OFF/ON
DOWN
CLOCK
2
10
OFF / ON
SELECT
FAN SPEED
MODE
QUIET/
TEMP
SET
AIR SWING
POWERFUL
CANCEL
AC
RC
CHECK
RESET
1
/
3
• Condensation effect due to cooling process.
• Refrigerant flow inside the unit.
• This may be due to damp smell emitted by the wall,
carpet, furniture or clothing.
• This helps to remove the surrounding odour.
• The delay is a protection to the unit's compressor.
• Condensation or evaporation occurs on pipes.
• The timer setting repeats daily once set.
• The unit is in defrost mode, and the melted frost is
drained from the outdoor unit.
• To avoid unintended cooling effect.
• This is a preliminary step in preparation for the
operation when the ON timer has been set.
• Changes of temperature caused the expansion/
contraction of the unit.
• Discoloration is subject to material types used in plastic
parts, accelerated when exposed to heat, sun light, UV
light, or environmental factor.
• Set the temperature correctly.
• Close all doors and windows.
• Clear any obstruction at the air inlet and air outlet vents.
• Check if the unit has been installed at an incline.
• Check if the circuit breaker is tripped.
• Check if timers have been set.
• Use remote control to retrieve error code as follows.
Ensure the operation LED is in OFF condition.
1 Press
for 5 seconds
CHECK
UP
2 Press TIMER
or
• If error code and abnormality can be
identified, the operation LED will be ON
continuously, then jot down the error code.
3 Press
again for 5 seconds to quit
CHECK
checking
4 Reveal the error code to authorised dealer
Cause
Check
Check
DOWN
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