7
ENGLISH
TROUBLESHOOTING
TROUBLESHOOTING
Symptom
Symptom
Cause
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 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 odours.
Air
fl
ow continues even after operation has
stopped.
• Extraction of remaining heat from the indoor unit (maximum 30 seconds).
Operation is delayed a few minutes after restart. • 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 cause the expansion/contraction of the unit.
The following symptoms do not indicate malfunction.
The following symptoms do not indicate malfunction.
Symptom
Symptom
Check
Check
Heating/Cooling operation is not working
ef
fi
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 not obstructed.
• Certain
fl
uorescent lights may interfere with signal transmitter. Please consult
authorized dealer.
PATROL operation does not work.
• Press and hold
for 15 seconds until beep sound is heard, press
again.
Patrol sensor or e-ion indicator on the indoor unit
is blinking.
• Press
or
twice. If the patrol sensor or e-ion indicator still blinking,
please consult authorized dealer.
Check the following before calling for servicing.
Check the following before calling for servicing.
The unit stops and the timer indicator blinks.
The unit stops and the timer indicator blinks.
Use remote control to retrieve error code.
1
Press for 5
seconds.
3
Press for 5
seconds to
quit checking.
2
Press until you hear
beep sound, then jot
down the error code.
4
Turn the unit off and reveal the error code to authorized dealer.
Note:
• For certain error, you may
restart the unit with limited
operation with 4 beeps
during operation starts.
