Troubleshooting - Panasonic CS-Z25UFEAW Mode D'emploi

Troubleshooting

The following symptoms do not indicate malfunction.
Symptom
POWER indicator blinks before the unit is
switched on.
POWER indicator blinks during HEAT mode
with no warm air supply (and fl ap is closed).
POWER indicator blinks and stop when
operate COOL/DRY mode.
TIMER indicator is always on.
Operation is delayed a few minutes after
restarting.
Indoor fan stops occasionally during heating
operation.
Indoor fan stops occasionally during automatic
fan speed setting.
The room has a peculiar odour.
Cracking sound during operation.
Water fl owing sound during operation.
Mist emerges from indoor unit.
Outdoor unit emits water/steam.
Discoloration of some plastic parts.
Dusts accumulated on the wall.
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.
• This is a preliminary step in preparation for the
operation when the ON timer has been set.
When ON Timer is set, the unit may start earlier (up
to 35 minutes) before the actual set time in order to
achieve the desired temperature on time.
• The unit is in defrost mode.
• The system has locked to operate in HEAT mode only.
• The timer setting repeats daily once set.
• The delay is a protection to the unit's compressor.
• To avoid unintended cooling effect.
• This helps to remove the surrounding odour.
• This may be due to damp smell emitted by the wall,
carpet, furniture or clothing.
• Changes of temperature caused the expansion/
contraction of the unit.
• Refrigerant fl ow inside the unit.
• Condensation effect due to cooling process.
• Condensation or evaporation occurs on pipes.
• Discoloration is subject to material types used in plastic
parts, accelerated when exposed to heat, sun light, UV
light or environmental factor.
• Due to air circulation or static electricity generated
by the air conditioner. Some types of wall paper may
collect dusts easily (recommended to clean the area
around the air conditioner frequently).
• 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.
Cause
Check
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