Panasonic CUUE18RKE Guía De Operación

9

English

Troubleshooting

The following symptoms do not indicate malfunction.

Mist emerges from indoor unit.

• Condensation effect due to cooling process.

Water flowing sound during operation.

• Refrigerant fl ow inside the unit.

The room has a peculiar odour.

• This may be 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 odour.

Airflow continues even after operation has 

stopped.

• Extraction of remaining heat from the indoor unit

(maximum 30 seconds).

Operation is delayed a few minutes after 

restarting.

• The delay is a protection to the unit’s compressor.

Outdoor unit emits water/steam.

• Condensation or evaporation occurs on pipes.

TIMER indicator is always on.

• The timer setting repeats daily once set.

POWER indicator blinks during HEAT mode with 

no warm air supply (and louver is closed).

• The unit is in defrost mode (and AIR SWING is set to 

AUTO).

Indoor fan stops occasionally during heating 

operation.

• To avoid unintended cooling effect.

POWER indicator blinks before the unit is 

switched on.

• This is a preliminary step in preparation for the operation 

when the ON timer has been set.

Cracking sound during operation.

• Changes of temperature caused the expansion/contraction 

of the unit.

Discoloration of some plastic parts.

• Discoloration is subject to material types used in plastic 

parts, accelerated when exposed to heat, sun light, UV 

light, or environmental factor.

Cooling/heating capacity reduced during the 

lowest fan speed setting.

• The low fan speed is low noise priority operation, so 

cooling/heating capacity may be reduced (depending on 

the condition). Increase the Fan Speed to increase the 

capacity.

Check the following before calling for servicing.

Operation in HEAT/COOL mode is not working 

efficiently.

• 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 signal 

transmitter. Please consult authorised dealer.

TURN OFF POWER SUPPLY AND UNPLUG 

then please consult authorised dealer under the 

following conditions:

• Abnormal noise during operation.

• Water/foreign particles have entered the 

remote control.

• Water leaks from Indoor unit.

• Circuit breaker switches off frequently.

• Power cord becomes unnaturally warm.

• Switches or buttons are not functioning 

properly.

Use remote control to retrieve error code.

Press until you 

hear beep sound, 

then write down 

the error code

2

Turn the unit off 

and reveal the 

error code to 

authorised dealer

4

Press for 

5 seconds

1

Press for 

5 seconds 

to quit 

checking

3

• For certain errors, you may restart the unit for limited 

operation with 4 beeps when operation starts.

Cleaning instructions / 

T

roubleshooting