Panasonic Cs W7dkr Cs W9dkr Cs W7dkr Series Repair Manual

							 • Auto Fan Speed during cooling operation:
 1. Indoor fan will rotate alternately between off and on as shown in below diagram.
 2. At the beginning of each compressor start operation, indoor fan will increase fan speed gradually for deodorizing purpose.
 3. For the first time the compressor operate, indoor fan will be switched to Hi fan speed from Lo- after 70 seconds from the
start of compressor. This cause the room temperature to achieve the setting temperature quickly.
 4. During compressor stop, indoor fan will operate at Lo- for the beginning 20 seconds to prevent higher volume of refrigerant
in liquidform returning to the compressor.
 5. After the compressor at turn off conditio n for 3 minutes, indoor fan will start to operate at Lo- to circulate the air in the room.
This is to obtain the actual reading of the intake air temperature.
 6. When the compressor resume operation, indoor fan will operate at Me fan speed (after 70 seconds from the restart of
compressor) to provide comfort and lesser noise environment.
 • Auto Fan Speed during Soft Dry operation:
 1. Indoor fan will rotate alternately between off and Lo-.
 2. At the beginning of each compressor start operation, indoor fan will increase fan speed gradually for deodorizing purpose.
 3. When compressor at turn off conditio n for 6 minutes, indoor fan will start fan speed at Lo- to circulate the air in the room.
This is to obtain the actual reading of intake air temperature.
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							(Cooling and Soft Dry Operation condition)
 • W hen the vertical airflow direction is set to Auto using the
remote control, the louver swings up and down as shown in
the diagram.
 • W hen stop operation using the remote control, the
discharge vent is reset, and stop at the closing position .
 • During Cooling operation or Soft Dry operation, indoor fan
motor may stop to rotate at certain periods. At that
conditio n, the louver will stop swinging and rest at the upper
limit.
 • During Anti-dew conden sation prevention, Airflow Direction
Auto-control angle change from 0°-32°to 20°-30°under
Cooling and Soft Dry operation mode.Cooling and Soft Dry Operation
 • Auto Fan Speed during Heating operation.
 1. Indoor fan will rotate in the range of SLo
→Me according to the heat exchanger temperature.
8.6.3. Manual Fan Speed Control
 • Manual fan speed adjustment can be carried out by using the Fan Speed selection button at the remote control.
 • There are 3 types of fan speed settings: Lo, Me, Hi.
8.7. Outdoor Fan Speed Control
 • There is only one speed for outdoor fan motor.
 • W hen the air conditio ner is turned on, the compressor and the outdoor fan will operate simultaneously .
 • Likewise, both compressor and outdoor fan will stop at the same time if the unit is turned off.
8.8. Vertical Airflow Direction Control
8.8.1. AutoControl
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							(Heating Operation condition)
 • W hen the piping air temperature reaches 38°C, the
louver is changed from upper to lower limit.When the
piping air temperature falls to 35°C, the louver is
changed from lower to upper limit.
Cooling and Soft Dry Operation
(Cooling and Soft Dry Operation condition)Heating Operation
Heating Operation
8.8.2. Manual Control
 • W hen the vertical airflow direction is set to Manua l using the remote control, the automatic airflow is released and the airflow
direction louver move up and down in the range shown in the diagram.
 • The louver can be adjusted by pressing the button to the desired louver position .
 • W hen stop operation using the remote control, the discharge vent is reset, and stop at the closing position .
 • During Anti-dew conden sation prevention, Airflow Direction Manua l control angle changefrom 10°,15°,20°,26°,32°to 22°,
24°,26°,28°,30°under Cooling and Soft Dry operation mode.
8.9. Horizontal Airflow Direction Control
 • The horizontal airflow direction louvers can be adjusted manually by hand.
8.10. Powerful Operation
 • The Powerful operation is to achieve the setting temperature quickly.
 • W hen Powerful operation is set, the setting temperature will be automatically decreased 3°C internally against the present
setting temperature (Lower temperature limit: 16°C).
 • This operation automatically will be running under SHi Fan Speed (Cooling).
 • Vertical Airflow Direction:-
-In“Manual”setting, the vane will automatically shift down 10°lower than previous.
-In“Auto”setting, the vane will automatically swing up and down. However the lower limit will be shifted 10°downward.
(Heating Operation condition)
 • W hen Powerful operation is set, the setting temperature will be automatically increased 3°C against the present setting
temperature (Higher temperature: 30°C).
 • The Fan Speed will shift as shown below:
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							 • Vertical Airflow Direction:-
 − In“Manual”setting, the vane will automatically shift down 5°lower than previous setting.
 − In“Auto”setting, the vane will automatically shift between upper and lower limit depend ing on the intake air temperature
as Heating Mode, Airflow Direction Auto-Control. However the upper and lower limit will be shifted 5°downward.
 • Powerful operation stops when:-
 − Powerful operation has operate for 15 minutes.
 − Powerful button is pressed again.
 − Quiet button is pressed.
 − Stopped by OFF/ON operation button.
 − Timer OFF activates.
 − Operating mode is changed.
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							8.11. Quiet Operation
 • The Quiet operation is to provide quiet cooling/heatin g operation conditio n compare to normal operation.
(Cooling and Soft Dry Operation condition)
 • Once the Quiet Mode is set at the remote control, Quiet Mode LED illuminates. The sound level will reduce either around
2 dB(A) for Lo fan speed or 3 dB(A) for Hi/Me fan speed against the present sound level operation.
 • Dew formation become severe at Quiet Lo cool, therefore Quiet Lo cool is operated only 1hr 30 min (1hr QLo, 30 min QLo
+ 80 rpm). After that, it goes back to QLo+160 (However Quiet LED remains on).
 • Manual Fan Speed: -
 − RPM control during Lo cool
 − RPM control during Hi & Me cool
 • Auto Fan Speed: -
 − Cooling operation
 − Soft Dry operation
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							(Heating Operation condition)
 • W hen the Quiet Mode is set at the remote control, Quiet Mode LED illuminates. The sound level will reduce either around
2 dB (Lo) or 3 dB (Hi, Me), against the present sound level operation.
 • Quiet setting of fan speed rpm refer to Indoor Fan Speed Control.
 • Manual Fan Speed: -
 − Rpm control during Lo, Me & Hi Cool
 • Auto Fan Speed: -
 − Rpm control depend s on the piping air temperature sensor of Indoor heat exchan ger
 • Quiet operation stops when:-
 − Quiet button is pressed again.
 − Powerful button is pressed.
 − Stopped by OFF/ON operation button.
 − Timer OFF activates.
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							8.12. Ionizer Operation
 • The Ionizer operation is to provide fresh air effect to user by producing minus ion in discharge air.
8.12.1. Operation Control
 1. Ionizer individu al operation
 a. When air-conditioner unit is at“OFF”conditio n (standby) and ION operation button at the remote control is pressed, the
Ionizer and indoor fan operations will turn on. Only ION LED will illuminates. Power LED maintainoff. (1
→2)
 b. Ionizer individu al operation can be turned off by pressing the ION button again. (2
→1)
 c. Fan speed can be adjusted later by customer during this operation.
 d. Vertical airflow direction can be adjusted using remote control during Ionizer individu al operation.
 e. During Ionizer individu al operation, operated mode (Auto, Cool, Dry, Heat) can be activated by turning on the OFF/ON
operation button. (2
→4)
 f. If power failure occur during Ionizer individu al operation, after power resume, Ionizer operation will be activated immediately.
 g. When theIonizer circuit feedba ck process error occur for 24 times (about 11hr 30 min.), Ionizer and Air Circulation
operations will turn off with ION LED blinks continuously.
(For details, please refer to Ionizer Error detection control)
 2. Operation mode & Ionizer operation.
 a. When air-conditioner unit is at“ON”conditio n and ION operation button at the remote control is pressed, the Ionizer
operation will turn on. ION & Power LED will illuminate. (3
→4)
 b. Ionizer operation stops when:
 • ION operation button is press again.
 • Stopped by OFF/ON operation button.
 • Timer OFF activates.
 • Ionizer circuit feedba ck signal shows error.
 c. Ionizer operation status is not memorized when the air conditio ner has been switched off. The air-conditio ner will operate
without ionizer operation when it is turned on again. However, if power failure occurs during Ionizer operation together with
Cooling operation, air-conditioner will start to operate at Cooling operation with Ionizer operation when the power is
resumed.
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							8.12.2. Error Detection Control
 • The error detection control is to inform user that error occurs at ionizer system and repairing job will be needed .
 • There are two types of error detection control:
a. WhenIonizer is ON
 − If ionizer feedba ck = Lo for 24 times within 11hr 30min, ION LED blinks continuously.
b. Whenionizer is OFF
 − If ionizer feedba ck = Hi, ION LED blinks continuously.
 • During ionizer at breakdown conditio n, if ionizer feedba ck voltage = Lo (become normal), ION LED will stop blinking.
 • The error detection control can be reset by:
i) Pressing the OFF/ON operation button to switch the operation OFF.
ii) Pressing the Auto Operation button to force the operation OFF.
iii) Setting the OFF Timer to stop the operation (Not applica ble when ionizer is OFF).
8.13. Timer Control
 • There are 2 types of timer, ON and OFF timer.
 • Both ON and OFF timer can be set by pressing ON or OFF button respectively.
 • By pressing ON/OFF operation button, ON Timer or OFF Timer will not be cancelled.
 • To cancel the previous timer setting, press CANCEL button.
 • To activate the previous timer setting, press SET button once again.
 • If main power supply is switchedoff, the timer setting will be cancelled.
8.13.1. ON Timer
 • W hen ON Timer is set by using the remote control, the unit will start to operate slightly before the set time, so that the room will
reach nearly to the set temperature by the set time.
 • For Cooling and Soft Dry operation, the operation will start 15 minutes before the set time.
 • For Heating operation, the operation will start 30 minutes before the set time.
 • For Automatic operation, the indoor fan will operate at SLo speed for 25 seconds, 30 minutes before the set time to detect the
intake air temperature to determine the operation mode. The operation indication lamp will blink at this time.
8.13.2. OFF Timer
 • W hen OFF Timer is set by using the remote control, the unit will stop operate according to the desired setting.
8.14. Random Auto Restart Control
 • If there is a power failure during operation, the air conditio ner will automatically restart after 3 to 4 minutes when the power is
resumed.
 • It will start with previous operation mode and airflow direction.
 • If there are more than one air conditio ner unit in operation and power failure occur, restart time for each unit to operate will be
decided randomly using 4 parameters:- intake air temperature, setting temperature, fan speed and air swing louver position .
 • This Random Auto Restart Control is not available when Timer is set.
 • This control can be omitted by open the circuit of JX2. (Refer Circuit Diagram)
8.15. Remote Control Signal Receiving Sound
 • Long beep sound will be heard when:-
 − Stopping the air conditio ner using OFF/ON operation button.
 − Stopping the Quiet Mode.
 − Stopping the Powerful Mode.
 − Stopping the Ion Mode.
 • Short beep sound will be heard for others setting.
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							9 Operating Instructions
(GB Standard)
This sign warns of death 
or serious injury.
The appliance is not intended for use by young children or infi rm 
person without supervision. Young children should be supervised to 
ensure that they do not play with the appliance.
Replacement or installation of power plugs shall be performed by 
authorized/qualifi ed personnel only. The wires in this mains lead are 
coloured in accordance with the following code: To prevent personal injury, 
injury to others and property 
damage, the following 
instructions must be 
followed.
Incorrect operation due to 
failure to follow instructions 
will cause harm or damage, 
the seriousness of which is 
classifi ed as below:
Thank you for purchasing Panasonic Air Conditioner
SAFETY PRECAUTIONS
This symbol denotes 
an action that is 
PROHIBITED.
These symbols denote 
actions that are 
COMPULSORY.
Warning
 Definition
This sign warns of injury 
or damage to property.
Caution
The instructions to be 
followed are classifi ed by 
the following symbols:
Safety RegulationOperation Condition (OC)
Use this air conditioner under the following temperature 
range.
DBT: Dry Bulb Temperature
WBT: Wet Bulb TemperatureIndoor Outdoor
DBT WBT DBT WBT
Maximum Temperature (COOL)32 23 43 26
Maximum Temperature (HEAT)30 – 24 18
Minimum Temperature (COOL)16 11 16 11
Minimum Temperature (HEAT)1 6 – - 5 - 6            
Different countries may have different colour coding for the wires.
Installation PrecautionsInstallation Precautions
Caution
•  Do not pull the cord to 
disconnect the plug.
•  Do not wash the unit with water, benzene, 
thinner or scouring powder.
•   Do not use for other purposes such as 
preservation of food.
•  Do not use any combustible equipment at 
airfl ow direction.
•  Do not sit or place anything on the indoor 
or outdoor unit.
•  Do not expose directly to cold air for a 
long period.•  Ventilate the room regularly.
•  Pay attention as to whether the 
installation rack is damaged after long 
period of usage.
•  Switch off the power supply and unplug 
before cleaning or servicing.
•  Turn off the power supply and unplug if 
the unit is not used for a long period of 
time.
OperationOperation Precautions Precautions
Warning
Do not install, remove and reinstall the unit by yourself.
•  Improper installation will cause leakage, electric shock or fi re. Please consult an authorized dealer or 
specialist for the installation work.
Caution
•  This air conditioner must be earthed. Improper grounding will cause electric shock.
•  Ensure that the drainage piping is connected properly. Otherwise, water will leak.
•  Current leakage protection equipment must be installed. Otherwise, electric shock or fi re may 
occur.
•  Do not install the unit in a potentially explosive atmosphere.
•  Insert the power plug properly.
•  Use specifi ed supply cord.
•  If the supply cord is damaged or needed 
to be replaced, it must be replaced by 
the manufacturer or its service agent or 
a similarly qualifi ed person in order to 
avoid a hazard.
•  Remove the batteries if the unit is not 
going to be use for a long period of time.
•  
New batteries of the same type must be 
inserted following the polarity stated to 
prevent malfunction of the remote control.
•  In case of emergency or abnormal 
condition (burnt, smell, etc) occurs, turn 
off the power supply and unplug.
Warning
•  Do not share power outlet.
•  Do not modify power cord.
•  Do not use an extension cord.
•  Do not operate with wet hands.
•  Do not operate or stop the unit by inserting 
or pulling out the power plug.
•   Do not insert fi nger or other objects into the 
indoor or outdoor unit.
•  Do not attempt to repair the unit by 
yourself.
•  Do not use rechargeable (Ni-Cd) batteries.
•  Keep the remote control away from infants 
and small children to prevent them from 
accidentally swallowing the batteries.
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							Q
UI
ETPOW
ER
FU
LIO
NT
I
ME
R
PO
W
ER
CANCEL
O
FF
TIMERON
TIMER
FA N
SPEED
AIR
SW
INGA
UTO
DRY COOL
MODE
TIMER
ON
123
OFF
CL
OCK RE
SET
SE
T
CANCEL
TEMP
PO
WE
RFULFA
NSPEED
AIR SWING
OFF/ON
QUIET
QUIETPOWERFULIONSUPERALLERU-BUSTERTIMER POWER
Air intake
Airflow direction louver
Ionizer Air filterFront panelIIndoor Unitndoor Unit
OutdoorOutdoor Unit Unit
Air inlet (rear)
Air outlet
LCD display
Off/On
Fan speed selection
Clock setting
Memory resetTemperature setting Powerful operationOperation mode
Quiet operation
Timer settingIon operation
Airflow direction 
adjustment
Remote ControlRemote Control
IndicatorSupersonic air 
purifying device
Auto OFF/ON 
button
Receiver
Transmitter Air inlet 
(side)
Discharged air
Do not touch 
during operation
Note:  The illustrations in this manual are for explanation purposes only and may differ from the 
actual unit. It is subjected to change without notice for future improvement.
PRODUCT OVERVIEW
Troubleshooting
  Operation delayed for few minutes after restart.
➤  This is a normal self protection control.
  Sound like water fl owing during operation.
➤  Caused by refrigerant fl ow inside.
  Mist emerges from indoor unit.
➤  Condensation effect due to cooling process.
  Noisy during operations.
➤  Installation work could be slanted or front panel didn’t close properly.
  Remote control/display does not work.
➤  Check whether batteries are correctly inserted or need replacement.
  The unit cannot operate.
➤  Check either circuit breaker is tripped, power plug is inserted correctly or 
timer is used correctly.
  Outdoor unit emits water/steam.
➤  Condensation or evaporation happens at piping surface.
OP
E
N
•  Make sure it is not obstructed.
•  Maximum distances: 10m.
•  Certain fluorescent lights may 
interfere with signal transmission. 
Consult your dealer.
Remote Control Preparation
 About
Remote Control Signal •  Timer operation will be based on 
current time set.
•  The batteries can be used for 
approximately 1 year.
•  The batteries must be 
recycled or disposed of 
properly. 1.  Pull out
2. Insert batteries
  (AAA or R03)
3. Press CLOCK button
4. Set 
current 
time
5. Press again to confi rm
•  To operate the unit if the 
remote control is misplaced or 
malfunctioning.
ActionOperation 
mode
Press once Automatic 
Operation
Press until “beep” 
sound Cooling 
Operation
•  To OFF, press again the Auto OFF/
ON button.
•  To switch the remote control signal 
receiving sound off or on.
1. Press until “beep” sound and 
release. 
2. Press again until “beep-beep” 
sound and release. 
3. Press to switch the sound off or 
on.
  (Long “beep” - OFF; short “beep” 
- ON)
Auto OFF/ON Button
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