Panasonic Cs A9dkh Cu A9dkh Cs A12dkh Cu A12dkh Repair Manual

Fig. 4
 − To remove the electronic controller.
 − Release CN-FM connectors. (Fig. 4)
 − Release CN-Sonic connector. (Fig. 4)
 − Release CN-FB connector. (Fig. 4)
 − Release CN-ION connector. (Fig. 4)
 − Release CN-TH connector. (Fig. 4)
 − Release CN-STM connector. (Fig. 4)
 − Release CN-REC/DISP connector. (Fig. 4)
 • Remove Control Board Cover
Fig. 6
 − Remove the screw on the left of the unit. (Fig. 6)
 − Pull the hook to the left and lift up the evaporator.
(Fig. 6)
 − Pull down the Discharge Grille...

 − Release the generator complete wire (green and red).
(Fig. 8)
 − Remove 2 screws on the right and 1 screw at the left
side of the control board. (Fig. 7)
 − Press down the hook on the left side of control board.
(Fig. 7)
 − Then pull out the Control Board Complete from the unit.
(Fig. 7)
Fig. 9
 − Remove the cross flowfan bushing from the chassis.
(Fig. 9)
 − Loosen the fan boss screw at the cross flow fan. (Fig. 9)
Fig. 10
 − Push up the evaporator andremove crossflow fan by
pulling both cross flow...

 • When the batteries are inserted for the first time or the
batteries are replaced, you may notice the indications at
remote control’s display screen blink continuously and not
functionable. If this condition happens, try to reset the
remote control by pushing the reset terminal with a pointing
device.
 • You may also do the reset to erase the setting at remote
control and restore back the default setting.
 − Long “beep”: Turn OFF remote control signal receiving sound.
 • After “Auto OFF/ON Button” is...

In order to diagnose malfunctions, make sure that there are no
electrical problems before inspecting the refrigeration cycle.
Such problems include insufficient insulation, problem with the
power source, malfunction of a compressor and a fan.
The normal outlet air temperature and pressure of the
refrigeration cycle depends on various conditions, the standard
values for them are shown in the table to the right.
13 Troubleshooting Guide
13.1. Refrigeration Cycle System
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CS-A9DKH CU-A9DKH / CS-A12D KH...

13.2. Relationship Between The Condition Of The Air Conditioner And
Pressure And Electric Current
Cooling ModeHeating Mode
Condition of the air
conditonerLow PressureHigh PressureElectric current
during operationLow PressureHigh PressureElectric current
during operation
Insufficient refrigerant
(gas leakage)
Clogged capillary tube
or Strainer
Short circuit in the
indoor unit
Heat radiation
deficiency of the
outdoor unit
Inefficient compression
 • Carry out the measurements of pressure, electric current,...

14 Technical Data
14.1. Thermostat Characteristics
14.1.1. CS-A9DKH CS-A12DKH
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CS-A9DKH CU-A9DKH / CS-A12D KH CU-A12D KH / 

14.2. Operation Characteristics
14.2.1. CS-A9DKH CU-A9DKH
67
CS-A9DKH CU-A9DKH / CS-A12D KH CU-A12D KH / 

14.2.2. CS-A12DKH CU-A12DKH
68
CS-A9DKH CU-A9DKH / CS-A12D KH CU-A12D KH / 

15 Exploded View (Indoor Unit)
15.1. CS-A9DKH CS-A12DKH
Note:
The above exploded view is for the purpose of parts disassembly and replacement.
The non-numbered parts are not kept as standard service parts.
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CS-A9DKH CU-A9DKH / CS-A12D KH CU-A12D KH / 

16 Replacement Parts List (Indoor Unit)

REF. NO.PART NAME & DESCRIPTIONQTY.CS-A9DKHCS-A12DKHREMARKS1CHASSY COMPLETE1CWD50C1377←2FAN MOTOR1CWA921181←03CROSS FLOW FAN COMPLETE1CWH02C1031←4BEARING ASS’Y1CWH64K007←5SCREW - CROSS FLOW FAN1CWH4580304←6EVAPORATOR1CWB30C1687CWB30C16017FLARE NUT1CWT25078(1/4”)←8FLARE NUT1CWT25005 (3/8”)CWT25007 (1/2”)9INTAKE AIR SENSOR HOLDER1CWH32143←10DISCHARGE GRILLE COMPLETE1CWE20C2316←11VERTICAL VANE9CWE241150←12CONNECTING BAR1CWE261066←13CONNECTING BAR1CWE261070←14AIR...