Panasonic CS-E12QD3RW, Operating Instructions Manual

9

English

To

 set the timer / 

T

roubleshooting

The following symptoms do not indicate malfunction.

Symptom

Cause

Mist emerges from indoor unit.

• Condensation effect due to cooling process.

Water 

fl

 owing 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.

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 operation and the 
indoor fan is stopped.

• The unit is in defrost mode, and the melted frost is 

drained from the outdoor unit.

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.

Check the following before calling for servicing.

Symptom

Check

Operation in HEAT/COOL mode is not working 
ef

fi

 ciently.

• Set the temperature correctly.
• Close all doors and windows.
• Clear any obstruction at the air inlet and air outlet vents.

Noisy during operation.

• Check if the unit has been installed at an incline.

The unit does not work.

• Check if the circuit breaker is tripped.
• Check if timers have been set.

The following symptoms indicate malfunction.

Symptom

Check

At remote control, OFF indicator does not 
shown on remote control display but operation 
LED OFF.

• Use remote control to retrieve error code as follows.

OFF / ON

TEMP

TIMER/CLOCK

MODE

QUIET/

POWERFUL

FAN SPEED

MODE

CHECK

RESET

AIR SWING

OFF/ON

CANCEL

CLOCK

SET

SELECT

UP

DOWN

AC

RC

OFF Indicator

Operation LED

3

/

1

2

Ensure the operation LED is in OFF condition.

1 Press 

CHECK

 for 5 seconds

2 Press TIMER 

UP

 or 

DOWN

• If error code and abnormality can be 

identi

fi

 ed, the operation LED will be ON 

continuously, then jot down the error code.

3 Press 

CHECK

 again for 5 seconds to quit 

checking

4 Reveal the error code to authorised dealer

Troubleshooting