
10
Troubleshooting
The following symptoms do not indicate malfunction.
Symptom Cause
The system is not turn on or respond to remote
controller immediately after power on.
*Please wait a moment (5min/15sec) after power
on the system.
• For new product first time power on after installation, the
system requires approximately 5 minutes for “System Auto
configuration Process”.
• For subsequent operation start up by power switch, the
system requires 15secs for “Program Initialization”.
TIMER indicator is always ON. • When Timer has been set, the Timer setting repeats daily.
Operation is delayed a few minutes after
restarting. • The delay is a protection to the unit’s compressor.
Fan operation continues after unit is turn off. • It is normal when the internal cleaning is in operation for
approximately 75 minutes.
Operation starts after power resumes. • Auto restart is in function and operates under previous
setting.
Indoor fan stops occasionally during automatic
fan speed setting. • This is to help remove the surrounding odour.
The room has a peculiar odour. • This may be due to damp smell emitted by the wall, carpet,
furniture or clothing.
Cracking sound during operation. • Changes in temperature caused the unit to expand and
contract.
Water flowing sound during operation. • Refrigerant flow inside the unit.
Mist emerges from indoor unit. • During cooling operation, the discharged cold air may
condense to water vapour.
Outdoor unit emits water or steam. • During cooling operation, condensation occurs on cold
pipes and the condensed water may drip from the outdoor
unit.
Unit switch to FAN operation and air become
humid. • This happens when the room temperature reaches the
set temperature, operation switches to FAN mode and the
humidity increase.
During dry mode, cold air blow out. • The unit is running cooling operation with low fan speed to
dehumidify the room.
Discoloration of some plastic parts. • 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.
Soft buzzing sound from indoor unit during
nanoe™X operation. • It is normal when the nanoe™X generator is working. If
you are concerned about the sound, cancel the nanoe™X
operation.
Check the following before calling for servicing.
Symptom Check
Operation in COOL mode is not working
efficiently. • Set the temperature correctly.
• Close all doors and windows.
• Clean or replace the filters.
• 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 intake grille 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.
• Make sure the address is set correctly.
• Make sure the remote control signal transmission is within
the range.
• Certain fluorescent lights may interfere with the signal
transmitter. Consult an authorised dealer.