Troubleshooting - Panasonic CS-U25WKR Operating Instructions Manual

Troubleshooting

The following symptoms do not indicate malfunction.
Symptom
POWER indicator blinks before the unit
is switched on.
TIMER indicator is always on.
Operation is delayed a few minutes after
restarting.
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.
Check the following before calling for servicing.
Symptom
Operation in 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.
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Cause
• 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 15 minutes) before the actual set time in
order to achieve the desired temperature on time.
• The timer setting repeats daily once set.
• The delay is a protection to the unit's
compressor.
• 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.
Check
• 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.
24/6/2020 10:36:07 AM