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Troubleshooting
The following symptoms do not indicate malfunction.
Symptom
POWER indicator blinks before the unit
is switched on.
TIMER indicator is always ON.
Operation is delayed a few minutes after
restarting.
Indoor fan stops occasionally during
automatic fan speed setting.
The room has a peculiar odour.
Cracking sound during operation.
Water fl owing sound during operation.
Mist emerges from indoor unit.
Outdoor unit emits water or steam.
Discoloration of some plastic parts.
Check the following before calling for servicing.
Symptom
Operation in COOL mode is not working
effi ciently.
Noisy during operation.
Remote control does not work.
(Display is dim or transmission signal is
weak.)
The unit does not work.
The unit does not receive the signal from
the remote control.
• This is the preliminary step to prepare for the
TIMER operation after it has been set.
• When Timer is set ON, the unit may start earlier
(up to 15 minutes) before the actual set time to
achieve the desired temperature on time.
• When Timer has been set, the Timer setting
repeats daily.
• The delay is a protection to the unit's
compressor.
• This is to help remove the surrounding odour.
• This may be due to damp smell emitted by the
wall, carpet, furniture or clothing.
• Changes in temperature caused the unit to
expand and contract.
• Refrigerant fl ow inside the unit.
• During cooling operation, the discharged cold air
may condense to water vapour.
• During cooling operation, condensation occurs
on cold pipes and the condensed water may drip
from the outdoor unit.
• Discoloration is subjected to the types of
materials used in plastic parts. It is accelerated
when exposed to heat, sun light, UV light or
environmental factors.
• 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.
• Check if the unit has been installed at an incline.
• Close the front panel properly.
• Insert the batteries correctly.
• Replace weak batteries.
• Check if the circuit breaker is tripped.
• Check if timers have been set.
• Make sure the receiver is not obstructed.
• Certain fl uorescent lights may interfere with the
signal transmitter. Consult an authorised dealer.
Cause
Check
17
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