Panasonic CUE9PD3EA Operating Guide
11
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.
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.
Check the following before calling for servicing.
Symptom
Check
Operation in HEAT/COOL mode is not working
effi 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
identifi ed, the operation LED will be ON
continuously, then jot down the error code.
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