Mitsubishi Electric Mr. Slim MS-A09WA Service Manual Download Page 24 | Manualshive

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24

10

PARTS LIST

10-1. PARTS LIST (non-RoHS compliant)
MS-A09WA
MS-A12WA
1. INDOOR UNIT STRUCTURAL PARTS

No.

Part No.

Part name

Remarks

Symbol

in Wiring

Diagram

Q'ty/unit

1
2
3
4
5
6
7
8
9

10

11
12

REMOTE CONTROLLER
REMOTE CONTROLLER HOLDER

KM06C

BOX
PANEL ASSEMBLY
SCREW CAP
FRONT PANEL
CATECHIN AIR FILTER (LEFT)
CATECHIN AIR FILTER (RIGHT)
AIR CLEANING FILTER
CORNER BOX (RIGHT)
INSTALLATION PLATE
CONDUIT PLATE

Including No.3,4
2PCS/SET

MAC-415FT-E

1
1
2
1
1
1
1
1
1
1

E02 A32 234
E02 A49 000
E02 913 067
E02 915 010
E02 915 100
E02 916 100

E02 A32 975
E02 913 970
E02 A49 978

E02 A49 426
E02 527 083

1
1
2
1
1
1
1
1
1
1

1
1

1
1

MS-A12WA

MS-A09WA

1. INDOOR UNIT STRUCTURAL PARTS

2. ACCESSORY AND REMOTE

CONTROLLER

2. ACCESSORY AND REMOTE CONTROLLER

1

8

2

4

3

9

5

6

12

11

7
(See 10-5.)

10

OB448A-1.qxp 07.5.14 4:21 PM Page 24

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Summary of Contents for Mr. Slim MS-A09WA

Page 1: ...T 24 10 1 PARTS LIST 24 10 2 RoHS PARTS LIST 27 11 MICROPROCESSOR CONTROL 30 Wireless type Models MS A09WA MS A09WA MS A12WA MS A12WA 1 1 SPLIT TYPE AIR CONDITIONERS NOTE RoHS compliant products have G mark on the spec name plate For servicing of RoHS compliant products refer to the RoHS PARTS LIST RoHS compliant INDOOR UNIT Outdoor unit service manual MU A WA Series OB449 Revision A MS A WA have ...

Page 2: ...Conduit cover terminal block cover and terminal block holder have been changed 1 1 2 1 TECHNICAL CHANGES MS09TW MS A09WA MS12TN MS A12WA 1 Indoor fan motor has been changed 2 Signal of remote controller has been changed It is not available for conventional models Revision A MS A WA have been added Remote controller has been changed 1 Remote controller KM06C KM07L Temperature indication _F _F _C MS...

Page 3: ...splay section Front panel Panel Heat exchanger Horizontal vane Operation section When the front panel is opened Remote controller Remote control receiving section Catechin air filter Air cleaning filter Anti Allergy Enzyme Filter Blue bellows type Emergency operation switch Operation Indicator lamp ...

Page 4: ...ing screw 4 o 25 mm Remote controller holder Fixing screw for 3 3 5 o 1 6 mm Black Battery AAA for remote controller Wireless remote controller Felt tape Used for left or left rear piping Conduit plate 1 8 1 2 2 1 1 1 1 5 1 2 2 1 1 MS A09 12WA MS A09 12WA MS A09WA MS A12WA ...

Page 5: ... model External finish Power supply Max fuse size time delay Disconnect switch Min circuit ampacity Fan motor Airflow Low Med High Moisture removal Sound level Low Med High Cond drain connection O D Dimensions Weight Remote controller Control voltage by built in transformer V phase Hz A A F L A CFM pt h dB A in in in in Ib MS A12WA 1 2 0 95 406 363 286 254 222 198 3 2 33 38 45 23 MS A09WA 1 2 0 95...

Page 6: ...3 16 12 5 8 1 5 8 8 7 16 10 1 8 1 11 16 8 7 16 1 8 11 5 16 2 3 4 2 3 16 2 3 16 2 3 16 8 7 8 8 7 8 9 16 10 3 4 9 3 16 Wall hole 2 9 16 Indoor unit Installation plate 7 16x13 16 Oblong hole 7 16x1 Oblong hole 7 8 hole Conduit plate MS A WA is excluded Insulation 1 1 8 Drain hose 5 8 Connected part O D Liquid line 1 4 19 11 16 Gas line 3 8 16 15 16 Insulation 1 3 8 O D 3 4 I D ...

Page 7: ...oor heat exchanger Flared connection Room temperature thermistor RT11 Flared connection Refrigerant flow in cooling Refrigerant pipe 3 8 MS A09 1 2 MS A12 with heat insulator Refrigerant pipe 1 4 with heat insulator Indoor coil thermistor RT12 Unit inch MS A09WA MS A12WA ...

Page 8: ... at left Same as at left Same as at left Solder both J1 and J2 Table 1 How to set the remote controller exclusively for particular indoor unit After you turn the breaker ON the first remote controller that sends the signal to the indoor unit will be regarded as the remote controller for the indoor unit The indoor unit will only accept the signal from the remote controller that has been assigned to...

Page 9: ...before power failure the auto restart function does not work as the power button of the remote controller is off To prevent breaker off due to the rush of starting current systematize other home appliance not to turn on at the same time When some air conditioners are connected to the same supply system if they are operated before power failure the starting current of all the compressors may flow s...

Page 10: ...eplace batteries Weak batteries may cause the remote controller malfunction In this case replace the batteries to operate the remote controller normally RESET button Insert the negative pole of the batteries first Check if the polarity of the batteries are correct NOTE 1 If RESET button is not pressed the remote controller may not operate correctly 2 This remote controller has a circuit to automat...

Page 11: ...confirm the abnormal point with the indoor unit failure mode table 8 2 2 Make sure to check at least two consecutive blinking cycles W2 Turn ON the power supply Preparation of the remote controller 1 While pressing both OPERATION SELECT button and TOO COOL button on the remote controller at the same time press RESET button 2 First release RESET button And release the other two buttons after all LC...

Page 12: ...gnal is not emit during the 12 seconds the indoor fan operation 2 time flash 2 5 second OFF Refer to the characteristics of the main indoor coil thermistor the sub indoor coil thermistor 8 7 Indoor coil thermistor The indoor coil thermistor short or open circuit is detected every 8 seconds during operation 1 time flash every 0 5 second Refer to the characteristics of the room temperature thermisto...

Page 13: ...B Check of remote controller and receiver P C board Power lamp 2 time flash Cause Indoor unit Trouble of the room temperature indoor coil thermistor Power lamp 3 time flash Cause Indoor unit Trouble of the indoor fan motor Check the room temperature thermistor and the indoor coil thermistor Refer to 8 7 Test point diagram and voltage Refer to 8 6 A Check of indoor fan motor 1 Check indoor outdoor ...

Page 14: ... unit and outdoor unit do not operate 3 Left lamp flashes 4 time flash 2 5 second OFF Indoor control system It cannot properly read data in the nonvolatile memory of the indoor electronic control P C board Indoor unit and outdoor unit do not operate Replace the indoor electronic control P C board 8 4 Troubleshooting check table Not lighted Blinking OPERATION INDICATOR Lighted Flashing of OPERATION...

Page 15: ...r Part temperature 50 F 86 F Refer to 8 7 Test point diagram and voltage the chart of thermistor Room temperature thermistor RT11 Indoor coil thermistor RT12 Horizontal vane motor MV Normal BRN other one Measure the resistance between the terminals with a tester Part temperature 50 F 86 F 235 255 Color of the lead wire Check 8 6 A RED YLW BRN ORN GRN ROTOR ...

Page 16: ...n 12 seconds after EMERGENCY OPERATION switch is pressed If more than 12 seconds passes by turn OFF the power supply and turn ON it again then measure the voltage w 1 Measure the voltage between CN211 1 and 3 2 Measure the voltage between CN211 5 and 3 Is there 162V DC between CN211 1 and 3 and does the voltage between CN211 5 and 3 rise to the range of 3 to 6V DC within 12 seconds after EMERGENCY...

Page 17: ...rd from radio Are there any fluorescent lights of inverter or rapid start type within the range of 3 28ft Replace the indoor electronic control P C board Replace the remote controller Reinstall the unit away from lights Attach a filter on receiving part Switch ON the remote controller Is LCD display on the remote con troller visible Remove the batteries then set them back and press RESET button Re...

Page 18: ...otor connector Short open circuit Replace the indoor fan motor Short open circuit Replace the horizontal vane motor and the indoor electronic control P C board Turn OFF the power supply Check both parts side and pattern side of the indoor electronic control P C board visually Replace the indoor electronic control P C board Are the varistor NR11 burnt and the fuse F11 blown Be sure to check both th...

Page 19: ...ic noise 4 Layout of indoor outdoor unit of the air conditioner indoor outdoor wiring grounding wire antennas wiring from antennas receiver 5 Electric field intensity of the broadcast station affected by the electromagnetic noise 6 Presence or absence of amplifier such as booster 7 Operation condition of air conditioner when the electromagnetic noise enters in 1 Turn OFF the power supply once and ...

Page 20: ...1 250V 3 15A Indoor coil thermistor RT12 23 CN112 Horizontal vane motor CN151 8 7 Test point diagram and voltage SW P C board Power monitor receiver P C board 12V DC 5V DC Power supply input Indoor fan motor CN211 Varistor NR11 Room temperature thermistor RT11 Timer short mode point JPG JPS Refer to 7 1 5 3 6V DC 415V DC 3 Fiducial terminal of cathode side on measur ing high voltage DC 1325V DC 6 ...

Page 21: ...out locking mechanism can be detached by pulling it out Check the shape of the terminal before detaching Terminal with locking mechanism Detaching points Connector Sleeve Locking lever MS A09WA MS A12WA OPERATING PROCEDURE PHOTOS Photo 1 1 Removing the panel 1 Remove the horizontal vane 2 Remove the screw caps of the panel Remove the screws See Photo 1 3 Hold the lower part of both ends on the pan...

Page 22: ...ut the electronic control P C board from the electrical box 12 Remove the ground wire connected to the heat exchanger from the electrical box See Photo 5 13 Unhook the catches of the electrical box and pull out the electrical box 14 Remove the screw of the terminal block cover and then remove the terminal block cover and the terminal block holder See Photo 6 15 Remove the terminal block by sliding...

Page 23: ...orner box 2 Remove the switch holder and the electrical box Refer to 3 3 Pull out the drain hose from the nozzle assembly and remove the nozzle assembly 4 Remove the screws fixing the motor bed See Photo 8 5 Loosen the screw fixing the line flow fan See Photo 9 6 Remove the motor bed together with fan motor and motor band 7 Release the hooks of the motor band and remove the motor band then pull ou...

Page 24: ...CHIN AIR FILTER LEFT CATECHIN AIR FILTER RIGHT AIR CLEANING FILTER CORNER BOX RIGHT INSTALLATION PLATE CONDUIT PLATE Including No 3 4 2PCS SET MAC 415FT E 1 1 2 1 1 1 1 1 1 1 E02 A32 234 E02 A49 000 E02 913 067 E02 915 010 E02 915 100 E02 916 100 E02 A32 975 E02 913 970 E02 A49 978 E02 A49 426 E02 527 083 1 1 2 1 1 1 1 1 1 1 1 1 1 1 MS A12WA MS A09WA 1 INDOOR UNIT STRUCTURAL PARTS 2 ACCESSORY AND ...

Page 25: ... FLOW FAN UP DOWN AUTO RESTART AUTO RESTART RC0H30 MV TB RT11 RT12 MF No Part No Part name Remarks Symbol in Wiring Diagram Q ty unit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 E02 751 509 E02 001 504 E02 897 702 E02 A49 235 E02 897 303 E02 913 040 E02 913 095 E02 A49 979 E02 A49 780 E02 A49 779 E02 A49 375 E02 A49 452 E02 A50 452 E02 897 308 E02 897 307 E02 915 782 E02 A49 300 E02 897 333 E02 8...

Page 26: ...ING FILTER is 1 year If AIR CLEANING FILTER is to be washed soak AIR CLEANING FILTER in water when showing dirt in lukewarm water and rinse it delicately without removing the filter from the frame about once every 3 months Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet Do not remove or attach AIR CLEANING FILTER during unit operation 1 2 3 INDO...

Page 27: ...R FILTER LEFT CATECHIN AIR FILTER RIGHT AIR CLEANING FILTER CORNER BOX RIGHT INSTALLATION PLATE CONDUIT PLATE Including No 3 4 2PCS SET MAC 415FT E E12 A32 234 E12 A49 000 E12 913 067 E12 915 010 E12 915 100 E12 916 100 E12 A32 975 E12 913 970 E12 A49 978 E12 A49 426 E12 C30 426 E12 527 083 MS A12WA MS A09WA 1 1 2 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

Page 28: ... TB RT11 RT12 MF No RoHS Part No Part name Remarks Symbol in Wiring Diagram Q ty unit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 G G G G G G G G G G G G G G G G G G G G G G E12 751 509 E12 001 504 E12 897 702 E12 A49 235 E12 897 303 E12 913 040 E12 915 095 E12 A49 979 E12 C30 979 E12 A49 780 E12 C30 780 E12 A49 779 E12 C30 779 E12 A49 375 E12 A49 452 E12 A50 452 E12 897 308 E12 897 307 E12 91...

Page 29: ... year If AIR CLEANING FILTER is to be washed soak AIR CLEANING FILTER in water when showing dirt in lukewarm water and rinse it delicately without removing the filter from the frame about once every 3 months Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet Do not remove or attach AIR CLEANING FILTER during unit operation 1 2 3 G G G G G INDOOR HE...

Page 30: ...ller model is on back Fan speed control button Operation select button ECONO COOL button On timer button CLOCK set button TIME set buttons Forward button Backward button Off timer button RESET button POWERFUL button VANE button Horizontal vane button MS A09WA MS A12WA Operation Indicator lamp The operation indicator at the right side of the indoor unit indicates the operation state Approx 4 F or m...

Page 31: ...E STOP ON OFF button OPERATION INDICATOR lamp of the indoor unit turns ON with a beep tone 2 Select FAN mode with OPERATION SELECT button 3 Select the desired fan speed When AUTO it becomes Low Only indoor fan operates Outdoor unit does not operate Mode COOL mode of I FEEL CONTROL DRY mode of I FEEL CONTROL Initial room temperature 75 F or more less than 75 F 11 4 I FEEL CONTROL OPERATION 1 Press ...

Page 32: ...angle automatically changes to Angle 1 for dew prevention 5 STOP operation OFF and ON TIMER standby In the following cases the horizontal vane returns to the closed position a When OPERATE STOP ON OFF button is pressed POWER OFF b When the operation is stopped by the emergency operation c When ON TIMER is ON standby 7 SWING MODE By selecting SWING mode with VANE CONTROL button the horizontal vane ...

Page 33: ...w direction not to blow directly onto your body Horizontal position When VANE CONTROL button is pressed again the vane returns to the previously set position and the air conditioner starts the cooling or drying operation in approx 3 minutes 9 ECONO COOL operation ECONOmical operation When ECONO COOL button is pressed in COOL mode set temperature is automatically set 3 6 F higher than that in COOL ...

Page 34: ...the current time Initially 0 00 blinks at the current time display of TIME MONITOR so set the current time correctly with CLOCK SET button How to set the current time 1 Press the CLOCK set button 2 Press the TIME SET buttons and to set the current time Each time FORWARD button is press the set time increases by 1minute and each time BACKWARD button is press the set time decreases by 1minute Pressi...

Page 35: ...his operation is for servicing The Indoor fan speed runs at High speed and the system is in continuous operation with thermostat ON After 30 minutes of test run operation the system shifts to EMERGENCY COOL with a set temperature of 75 F The fan speed shifts to Med All protective operations such as the coil frost prevention works even in emergency operation In the test run or emergency operation t...

Page 36: ...00 8310 JAPAN C C Copyright 2006 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in May 2007 No OB448 REVISED EDITION A 7 Distributed in Mar 2006 No OB448 7 Made in Japan New publication effective May 2007 Specifications subject to change without notice TM ...

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