Panasonic Cs E719k Cs E919 Kcs E1219k Repair Manual

							 1. The Electronic Controller, a Signal Receiver and an
Indicator (Fig. 3) can be seen by the below steps:
 • Remove the 2 caps and 2 screws at the bottom of the
Front Grille. (Fig. 1)
 • Remove the Front Grille by releasin g the 2 hooks at the
top of the Front Grille. (Fig. 1)
 • Remove the Control Board Cover by releasin g the 2
tabs at left, 1 tab on top and 1 tab at right side of the
Control Board Cover. (Fig. 2)
 2. To remove the Electronic Controller:
 • Release the Particular Piece. (Fig. 3)
 • Release the hook that hold the Electronic Controller.
(Fig. 3)
 • Remove the Control Board by:-
 − Releasin g CN-REC/DISP connectors. (Fig. 4)
 − Releasin g CN-FM connectors. (Fig. 4)
 − Releasin g CN-STM connector. (Fig. 4)
 − Removing the EarthWirescrew. (Fig. 4)
 − Releasin g the Intake Air Sensor. (Fig. 4)
 − Releasin g the Piping Sensor. (Fig. 4)
Fig. 1
Fig. 2
Fig. 3
Fig. 4
12 Servicing Information
Caution: • Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F(30-40°C) higher. Please use
a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).
 • Pb free solder will tend to splash when heated too high (about 1100°F/600°C).
12.1. Indoor Electronic Controllers Removal Procedures
12.2. Indoor Fan Motor and Cross Flow Fan Removal Procedures
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CS-E719K CU-E7 19K / CS-E919K CU-E9 19K / CS-E1219K CU-E1219 K 
						

							 − Pulling out the Drain Hose from outlet to remove the
Discharge Grille. (Fig. 5)
 − Removing the right and left screws. (Fig. 5)
 − Then remove the Control Board by pressing down the
hook at the left and pushing up the right hook. (Fig. 5)
 − Release the Fan Motor leadwire by pressing the hook at
the center of the connector. (Fig. 6)
 − Remove the screw at the Cross Flow Fan. (Fig. 7)
 − REMINDER - To reinstall the Fan Motor, adjust the
connector of the Fan Motor as shown in the Fig. 7.
Fig. 5
Fig. 6
Fig. 7
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CS-E719K CU-E7 19K / CS-E919K CU-E9 19K / CS-E1219K CU-E1219 K 
						

							 − Remove the screws at the left of the Evaporator. (Fig. 8)
 − Remove the Bearing. (Fig. 9)
 − Push up the Evaporator and pull out the Cross Flow Fan
from shaft. By then, Fan Motor can be taken out. (Fig. 9)
Fig. 8
Fig. 9
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CS-E719K CU-E7 19K / CS-E919K CU-E9 19K / CS-E1219K CU-E1219 K 
						

							 • Remote Control Reset
When thebatteries are inserted for the first time, or the
batteries are replaced, all the indications will blink and the
remote control might not work.
If this happen , you will find a resetting terminal, and by
shorting it with a minus screwdriver, it will return to normal.
 • Changing the wireless remote control transmission
code
When twoindoor units are installed in the same room, in
order to prevent operating errors caused by using two
remote controls, cut a jumper wire at the remote control
printed circuit board (A - B) and cut a jumper wire at the
indoor printed circuit board (JX4). It is possible to select
from 4types of transmission codes includin g one at time of
delivery conditio n (0).
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CS-E719K CU-E7 19K / CS-E919K CU-E9 19K / CS-E1219K CU-E1219 K 
						

							13.1. Refrigeration cycle system
In order to diagnose malfunctions, make sure that there are no
electrical problems before inspecting the refrigeration cycle.
Such problems include insuffic ient insulation, problem with the
power source, malfunction of a compressor and a fan.
The normal outlet air temperature and pressure of the
refrigeration cycle depend s on various conditio ns, the standard
values for them are shown in the table to the right.
13 Troubleshooting Guide
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CS-E719K CU-E7 19K / CS-E919K CU-E9 19K / CS-E1219K CU-E1219 K 
						

							13.1.1. Relationship between the condition of the air conditioner and pressure and
electric current
Cooling Mode
Condition of the air
conditonerLow 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, and temperature fifteen minutes after an operation is started.
13.1.2. Diagnosis methods of a malfunction of a compressor
Nature of faultSymptom
 • 
Electric current during operation becomes approximately 20% lower than the normal value.
Insufficient compressing of a compressor • 
The discharge tube of the compressor becomes abnormally hot (normally 70 to 90°C).
 • 
The difference between high pressure and low pressure becomes almost zero.
 • 
Electric current reaches a high level abnormally, and the value exceeds the limit of an
ammeter. In some cases, a breaker turns off.
Locked compressor
 • 
The compressor has a humming sound.
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CS-E719K CU-E7 19K / CS-E919K CU-E9 19K / CS-E1219K CU-E1219 K 
						

							14 Technical Data
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CS-E719K CU-E7 19K / CS-E919K CU-E9 19K / CS-E1219K CU-E1219 K 
						

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CS-E719K CU-E7 19K / CS-E919K CU-E9 19K / CS-E1219K CU-E1219 K 
						

							15 Exploded View
Note:
The above explode d 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-E719K CU-E7 19K / CS-E919K CU-E9 19K / CS-E1219K CU-E1219 K 
						

							16 Replacement Parts List

REF. NO.PART NAME & DESCRIPTIONQTY.CS-E719KCS-E919KCS-E1219KREMARKS1CHASSY COMPLETE1CWD50C1240←←2FAN MOTOR1CWA921181←←03CROSS FLOW FAN COMPLETE1CWH02C1012←←4BEARING ASS’Y1CWH64K007←←5SCREW - CROSS FLOW FAN1CWH4580304←←6EVAPORATOR1CWB30C1233←CWB30C12377FLARE NUT1CWH6002140(1/4”)←←8FLARE NUT1CWT25005 (3/8”)←CWT25007 (1/2”)9INTAKE AIR SENSOR HOLDER1CWH32142←←10DISCHARGE GRILLE COMPLETE1CWE20C2101←←11VERTICAL VANE12CWE241068←←12CONNECTING BAR2CWE261024←←13AIR SWING MOTOR1CWA98259←←014LEAD WIRE - AIR SWING MOTOR1CWA67C3977←←15CAP - DRAIN TRAY1CWH52C1001←←16HORIZONTAL VANE1CWE241070←←17PARTICULAR PIECE1CWD932162←←18CONTROL BOARD1CWH102103←←19TERMINAL BOARD COMPLETE1CWA28C2073←CWA28C2075020POWER SUPPLY CORD1CWA20C2158←←21ELECTRONIC CONTROLLER - MAIN1CWA743168CWA743169CWA743170022LEAD WIRE - FAN MOTOR1CWA67C3729←←23ELECTRONIC CONTROLLER - RECEIVER1CWA742724←←024SENSOR COMPLETE1CWA50C2122←←025CONTROL BOARD FRONT COVER1CWH131090←←26ELECTRONIC CONTROLLER - INDICATOR1CWE39C1066←←027LEAD WIRE - INDICATOR1CWA67C3724←←28INDICATOR HOLDER1CWD932163←←29CONTROL BOARD TOP COVER1CWH131091←←30REMOTE CONTROL COMPLETE1CWA75C2399←←031FRONT GRILLE COMPLETE1CWE11C2329←←32INTAKE GRILLE1CWE221036←←33CONTROL PANEL1CWE30C1007←←34DECORATION BASE (R)1CWE351067←←35DECORATION BASE (L)1CWE351068←←36GRILLE DOOR1CWE141033←←37AIR FILTER2CWD001047←←38SCREW - FRONT GRILLE2XTN4+16C←←39CAP - FRONT GRILLE2CWH521062←←40DRAIN HOSE1CWH851044CWH85285←41INSTALLATION PLATE1CWH36K1018←←42ANTI-VIBRATION BUSHING1---43BAG COMPLETE - INSTALLATION SCREW1CWH82C067←←44FULCRUM1CWH621013←←
(Note)
 • All parts are supplie d from MAICO, Malaysia (Vendor Code: 061).
 • “O”marked parts are recommended to be kept in stock.
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CS-E719K CU-E7 19K / CS-E919K CU-E9 19K / CS-E1219K CU-E1219 K