34
Troubleshooting
The following symptoms do not indicate malfunction.
Symptom
Cause
POWER indicator blinks before the unit is switched
on.
• 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.
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.
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
fl
owing sound during operation.
• Refrigerant
fl
ow 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.
• During heating operation, frost formed on the outdoor unit
during deice cycle melts and is discharged as water or steam.
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.
After extended use, dust may cover the front panel,
grilles and the wall surrounding the unit.
• The dust accumulation is due to the air purification effect of
negative ions from nanoe
TM
-G. Remove the dust regularly with a
clean dampened cloth.
Wireless LAN indicator is ON when the unit is OFF.
• The unit’s wireless LAN connection with the router has been
activated.
Check the following before calling for servicing.
Symptom
Check
Operation in COOL mode 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 is not obstructed.
• Certain
fl
uorescent lights may interfere with the signal
transmitter. Consult an authorised dealer.
nanoe™-G indicator at the indoor unit blinks when
nanoe™-G is activated.
• Use the remote control to retrieve the error code and consult an
authorised dealer.
Summary of Contents for CS-WPU9XKH-8
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