Troubleshooting - Panasonic CS-HZ25XKE Operating Instructions Manual

Troubleshooting

The following symptoms do not indicate malfunction.
Symptom
POWER indicator blinks before the unit is switched on. • This is the preliminary step to prepare for the TIMER operation
POWER indicator blinks during HEAT mode with no
warm air supply (and fl ap is closed).
POWER indicator blinks, then stops blinking during
COOL/DRY mode.
TIMER indicator is always ON.
Operation is delayed a few minutes after restarting.
Cooling/heating capacity is reduced during lowest fan
speed setting.
In COOL mode, when the room temperature reaches
near the set temperature, the compressor stops, then
the indoor unit fan speed reduced.
Indoor fan stops occasionally during heating operation. • To avoid unintended cooling effect.
Indoor fan stops occasionally during automatic fan
speed setting.
Airfl ow continues even after operation has stopped.
During deice operation, fl ap is closed.
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 or steam.
Discoloration of some plastic parts.
Soft buzzing sound from indoor unit during nanoe™X
operation.
Wireless LAN indicator is ON when the unit is OFF.
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.)
20
after it has been set.
When Timer is set ON, the unit may start earlier (up to 35
minutes) before the actual set time to achieve the desired
temperature on time.
• The unit is in defrost mode (and AIR SWING has been set to
AUTO).
• The system has been locked to operate in HEAT mode only.
• When Timer has been set, the Timer setting repeats daily.
• The delay is a protection to the unit's compressor.
• The lowest fan speed is to have a low noise operation, so cooling/
heating capacity may be reduced depending on the condition.
Increase the fan speed to increase the capacity.
• To prevent the room humidty rising. The indoor fan will resume
running according to the set fan speed when room temperature
increase.
• This is to help remove the surrounding odour.
• To extract the remaining heat from the indoor unit (maximum 30
seconds).
• The AIR SWING is set to AUTO.
• This may be due to damp smell emitted by the wall, carpet,
furniture or clothing.
• Changes in temperature caused the unit to expand and contract.
• Refrigerant fl ow inside the unit.
• During cooling operation, the discharged cold air may condense
to water vapour.
• During cooling operation, condensation occurs on cold pipes and
the condensed water may drip from the outdoor unit.
• During heating operation, frost formed on the outdoor unit during
deice cycle melts and is discharged as water or steam.
• Discoloration is subjected to the types of materials used in plastic
parts. It is accelerated when exposed to heat, sun light, UV light
or environmental factors.
• It is normal when the nanoe™X generator is working. If you are
concerned about the sound, cancel the nanoe™X operation.
• The unit's wireless LAN connection with the router has been
activated.
• 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.
Cause
Check