TROUBLESHOOTING

The following symptoms do not indicate malfunction.

 

SYMPTOM

CAUSE

Mist emerges from indoor unit.

Water flowing sound during operation.

The room has a peculiar odor.

Indoor fan stops occasionally during automatic fan speed setting.

Airflow continues even after operation has stopped.

Operation is delayed a few minutes after restarting.

Outdoor unit emits water/steam.

TIMER indicator is always on.

POWER indicator blinks during HEAT mode with no warm air supply (and louver is closed).

Indoor fan stops occasionally during heating operation.

Power indicator blinks before the unit is switched on.

Cracking sound during operation.

►• Condensation effect due to cooling process.

►• Refrigerant flow inside the unit.

►• This may be due to damp smell emitted by the wall, carpet, furniture or clothing.

►• This helps to remove the surrounding odours.

►• Extraction of remaining heat from the indoor unit (maximum 30 seconds).

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

►• Condensation or evaporation occurs on pipes.

►• The timer setting repeats daily once set.

►• The unit is in defrost mode (and AIR SWING is set to AUTO).

►• To avoid unintended cooling effect.

►• This is a preliminary step in preparation for the operation when the ON timer has been set.

►• Changes of temperature caused the expansion/ contraction of the unit.

Check the following before calling for servicing.

 

SYMPTOM

CHECK

Heating/Cooling operation is not working efficiently.

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.

►

►

►

►

►

•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.

•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 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.

1

Press for 5

TIMER

 

 

seconds.

ON

 

SET

 

 

 

 

 

1

2

3

3

Press for 5

OFF

 

CANCEL

 

seconds to

 

 

AC RC

 

quit checking.

SET CHECK CLOCK

RESET

2Press until you hear beep sound, then write down the error code.

Note:

•For certain errors, you may restart the unit for limited operation with 4 beeps when operation starts.

8

4Turn the unit off and reveal the error code to authorized dealer.

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Panasonic CS-E9NKUAW, CU-E12NKUA, CU-E9NKUA manual Troubleshooting, Following symptoms do not indicate malfunction, Symptom
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CS-E9NKUAW, CSU-2E18NBU, CU-E9NKUA, CU-E12NKUA, CS-E12NKUAW specifications

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