Troubleshooting - Panasonic CU-CZ12SKE Operating Instructions Manual

Troubleshooting

The following symptoms do not indicate malfunction.
Symptom
Mist emerges from indoor unit.
Water fl owing sound during operation.
The room has a peculiar odor.
Indoor fan stops occasionally during automatic
fan speed setting.
Airfl ow continues even after operation has
stopped.
Operation is delayed a few minutes after
restarting.
Outdoor unit emits water/steam.
TIMER indicator is always on.
During deice operation, fl ap is closed.
Indoor fan stops occasionally during heating
operation.
POWER indicator blinks before the unit is
switched on.
Cracking sound during operation.
Discoloration of some plastic parts.
Check the following before calling for servicing.
Symptom
Operation in HEAT/COOL mode is not working
effi ciently.
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.
NON SERVICEABLE CRITERIAS
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.
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• Condensation eff ect due to cooling process.
• Refrigerant fl ow 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 AIR SWING is set to AUTO.
• To avoid unintended cooling eff ect.
• 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.
• Discoloration is subject to material types used in plastic
parts, accelerated when exposed to heat, sun light, UV
light, or environmental factor.
• 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.
• 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 fl uorescent lights may interfere with signal
transmitter. Please consult authorised dealer.
The unit stops and the TIMER indicator blinks.
Use remote control to retrieve error code.
1
Press for
5 seconds
ON ON
TIMER TIMER
OFF OFF
3
Press for
5 seconds
to quit
checking
• For certain errors, you may restart the unit for limited
operation with 4 beeps when operation starts.
Cause
Check
2
Press until you
hear beep sound,
SET SET
then write down
the error code
CANCEL CANCEL
4
Turn the unit off
and reveal the
error code to
authorised dealer
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