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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. • The delay is a protection to the unit's compressor.
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.
After extended use, dust may cover the front panel,
grilles and the wall surrounding the unit.
Soft buzzing sound from indoor unit during
nanoe™ TECHNOLOGY operation.
Wireless LAN indicator is ON when the unit is OFF. • The unit's wireless LAN connection with the router has been
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.
The nanoe™ TECHNOLOGY indicator at
the indoor unit is not ON when nanoe™
TECHNOLOGY is activated.
34
• 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.
• 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.
• The dust accumulation is due to the air purifi cation effect of
negative ions from nanoe™-G. Remove the dust regularly
with a clean dampened cloth.
• It is normal when the nanoe™X generator is working. If
you are concerned about the sound, cancel the nanoe™
TECHNOLOGY operation.
activated.
• 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.
• Use the remote control to retrieve the error code and consult
an authorised dealer.
Cause
Check
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