20
8
TROUBLESHOOTING
The following symptoms do not indicate malfunction.
SYMPTOM
CAUSE
Mist emerges from indoor unit.
► • Condensation effect due to cooling process.
Water flowing sound during operation.
► • Refrigerant flow 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.
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.
The unit operates automatically when power is resumed
after a power failure.
► • It is the Auto Restart function of the unit. Operation will
be restarted automatically under the previous operation
mode and air flow direction when power is resumed as
the operation is not stopped by remote control.
Indoor fan stops occasionally during heating operation.
► • To avoid unintended cooling effect.
POWER indicator blinks during HEAT mode.
► • The unit is in defrost mode.
POWER indicator blinks 3 seconds ON and 0.5 seconds
OFF during operation.
► • The unit is in Demand Response Mode.
Cracking sound during operation.
► • Changes of temperature cause the expansion/
contraction of the unit.
Check the following before calling for servicing.
SYMPTOM
CHECK
Heating/Cooling operation 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 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 fluorescent lights may interfere with signal
transmitter. Please consult authorized dealer.
The unit stops and the timer indicator blinks.
Use remote control to retrieve error code.
CHECK ERROR RESET RESET
SELECT
SET/CANCEL
QUIET
POWERFUL
/
A
B
1
Press for 5
seconds.
3
Press for 5 seconds to
quit checking.
2
Press until you hear 4
beep sounds, then jot
down the error code.
4
Turn the unit off and reveal the error code to authorized dealer.
F568478_EN_CS5.indd 20
2012-5-29 8:49:43
