11
English
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.
Cracking sound during operation. • Changes of temperature caused the expansion/
contraction of the unit.
2 or more human activity indicator turns on
simultaneously.
• Judgement of heat source and movement area in
progress.
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.
• Clean or replace the fi lters.
•
Clear any obstruction at the air inlet and air outlet vents.
Noisy during operation. • Check if the unit has been installed at an incline.
• Close the front panel properly.
Remote control does not work.
(Display is dim or transmission signal is weak.)
• Insert the batteries correctly.
• Replace weak batteries.
The unit does not work. • Check if the circuit breaker is tripped.
• Check if timers have been set.
The unit does not receive the signal from the
remote control.
• Make sure the receiver is not obstructed.
• Certain fl uorescent lights may interfere with signal
transmitter. Please consult authorised dealer.
NON SERVICEABLE CRITERIAS
TURN OFF POWER SUPPLY AND UNPLUG then please consult authorised dealer under the following
conditions:
• Abnormal noise during operation.
• Water/foreign particles have entered the remote
control.
• Water leaks from Indoor unit.
• Circuit breaker switches off frequently.
• Power cord becomes unnaturally warm.
• Switches or buttons are not functioning properly.
Troubleshooting
Cleaning instructions / Troubleshooting
F568955_YT0912-0.indb 11F568955_YT0912-0.indb 11 12/17/2012 4:17:08 PM12/17/2012 4:17:08 PM
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