Samsung AW078AA, AW088AA, AW108AA, AW128AA, AW069AB Service Manual

ROOM AIR CONDITIONER

AW078AA
AW088AA
AW108AA
AW128AA

SERVICE

AW069AB
AW089AB
AW109AB
AW129AB

Manual

AIR CONDITIONER CONTENTS

1. Precautions

2. Product Specifications

3. Installation and Operating
Instructions

4. Disassembly and Reassembly

5. Troubleshooting

6. Exploded Views and Parts List

7. Block Diagram

8. Wiring Diagram

1. Precautions

1. Warning: Prior to repair, disconnect the
power cord from the circuit breaker.

2. Use proper parts: Use only exact
replacement parts. (Also, we recommend
replacing parts rather than repairing them.)

3. Use the proper tools: Use the proper tools
and test equipment, and know how to use
equipment may cause problems later­intermittent contact, for example.

4. Power Cord: Prior to repair, check the
power cord and replace it if necessary.

5. Avoid using an extension cord, and avoid
tapping into a power cord. This practice
may result in malfunction or fire.

6. After completing repairs and reassembly,
check the insulation resistance.
Procedure: Prior to applying power, measure
the resistance between the power cord and the
ground terminal. The resistance must be
greater than 30 megaohms.

Fig. 1-1 Avoid Dangerous Contact

Fig. 1-2 No Tapping and No Extension Cords

7. Make sure that the grounds are adequate.

8. Make sure that the installation conditions
are satisfactory.
Relocate the unit if necessary.

9. Keep children away from the unit while it is
being repaired.

10. Be sure to clean the unit and its surrounding
area.

Fig. 1-3 No Kids Nearby!

Samsung Electronics 1-1

Fig. 1-4 Clean the Unit

Notice

C

AW108AA

: The symbol of model name

Type Model Name

AW078AA

A

B

AW088AA

AW109AB

AW128AA

AW129AB

AW069AB

AW089AB

1-2 Samsung Electronics

2. Product Specifications

Item Unit of Measure AW069AB AW078AA AW088AA AW089AB

Type -

Voltage Volt

Phase -

Frequency Hz

Operating Current A

Power Consumption W

Refrigerant Type FREON

Refrigerant Charge g

Capacity BTU/h

EER BTU/h.W

Net Weight kg

Condenser Row 3×15 2×15 2×15 3×15

Condenser Fan Type

Evaporator Row 2×14 2×14 2×14 3×14

Evaporator Fan Type

Fan Motor Model YGN55-6F YGN55-6E YGN55-6B YGN55-6B

Compressor(Rotary) Model 44C062HU1EA 44A072HW1EB 44A080HU1EB 44A076HU1EB

Overload Protect - MRA12040-12008 MRA98706-12008 MRA12083-12008 MRA12083-12008

Compressor Capacitor F/VAC 35/370 25/370 35/370 35/370

Fan Motor Capacitor F/VAC 5/250 6/450 6/250 6/250

Fan speed RPM 780/750/670 780/720/650 880/780/710 880/780/710

Thermo Control -

Air Swing Model

WINDOW

M2CK59ZT79-H

Packing size:
(Width×Height×Depth)

mm

Dimensions:
(Width×Height×Depth)

mm

THERMISTOR

520×345× 485

571×454× 546

R22

Propeller Fan

Blower

Single

2-1 Table

Samsung Electronics 2-1

Table (cont.)

Item Unit of Measure AW108AA AW109AB AW128AA AW129AB Remarks

Type

Voltage Volt

Phase -

Frequency Hz

Operating Current A

Power Consumption W

Refrigerant Type FREON

Refrigerant Charge g

Capacity BTU/h

EER BTU/h.W

Net Weight kg

Condenser Row 3×15 3×17 3×17 3×17

Condenser Fan Type

Evaporator Row 2×12 2×16 3×16 2×14

Evaporator Fan Type

Fan Motor Model YGN61-6A YFK70-6A YGN60-6B YGN60-6G

Compressor(Rotary) Model 44B098HU2EF 44B098HU2EF 44B124HX1EL 44B124HX1EL

Overload Protect - MRA12132-12007 MRA12132-12007 MRA98693-12007 MRA98693-12007

Compressor Capacitor F/VAC 45/370 45/370 50/370 50/370

Fan Motor Capacitor F/VAC 15/250 8/250 15/250 15/250

Fan speed RPM 1020/970/900 880/800/740 880/780/710 880/780/710

Thermo Control -

Air Swing Model

WINDOW

M2CK59ZT79-H

660×394× 595550×345× 485

590×468× 578 728×459× 647

THERMISTOR

R22

Propeller Fan

Dimensions:
(Width×Height×Depth)

mm

Blower

Single

Packing size:
(Width×Height×Depth)

mm

2-2 Samsung Electronics

2-2 Dimensions

W

HH

D

2-2-1 Main Unit

Front view Side view

(Unit : mm)

Type W H D

A 520 345 485
B 600 394 595

C 550 345 485

2-2-2 Remote Control

Timer setting button

Sleep timer setting button

Operating mode

selection buttons

Energy Saver button

Air flow blade swing button

Samsung Electronics 2-3

Temperature adjustment
buttons

Fan speed
adjustment buttons

ON/OFF button

MEMO

2-4 Samsung Electronics

3. Installation and Operating Instructions

3-1 Installation

3-1-1 Selecting Area for Installation

1. Make sure that you install the unit in an area
providing good ventilation. The air conditioner
must not be blocked by any obstacle affecting the
air flow near the air inlet and air outlet.

2. Make sure that you install the unit in an area that
allow good air handling. The installation area must
be able to endure vibration from the unit.

3. Make sure that you install the unit away from heat
or vapor.

4. Make sure that you install the unit in an area
which is cool and has adequate space.

5. Make sure that you install the unit in an area away
from TVs, audio units, cordless phones,
fluorescent lighting fixtures and other electrical
appliances (obtain a clearance of at least one meter).

6. Make sure that you install the unit in an area which
provides easy drainage for condensed water.

7. Make sure that you install the unit in an area not
exposed to rain or direct sunlight.
(Install a separate sunblind if exposed to direct

sunlight.)

8. Make sure that you install the unit in an area
allowing good air movement. Do not install it in
a space that would cause noise amplification of
noise.

9. Fix the unit firmly if mounted in a high place.

Caution:

Do not use the air conditioner in the following environments : greasy areas (including areas near
machines), or marine areas. Contact your local dealer for advice.

Samsung Electronics 3-1

3-2 Function Description

Fan speed indicator

(LOW, MED, HIGH)

Temperature/Timer settings

Temperature

adjustment buttons

Operating mode indicators

(COOL, FAN)

Remote control sensor

Air flow blade swing button

Fan Speed adjustment button

Operating on/off

Air flow blade swing indicator
Energy saver indicator

ON/OFF Timer adjustment button
Sleep adjustment button

Timer indicator

Energy saver button

Operating mode selection button

3-2-1 Cooling operation mode

The compressor is turned on and off according to the ambient temperature and set temperature.

1) Compressor on and off control

• Compressor on and off control according to the ambient temperature
The compressor is turned off when "ambient temperature = set temperature

*

The compressor is turned on when "ambient temperature = set temperature +1˚C"

*

2) Default value after power reset ➔set temperature = 24˚C

Fan speed = High

3) Set temperature indicating (setting) range : 1˚C interval from 18˚C to 30˚C.

3-2-2 Fan operation mode

1) If "Fan operation mode" signal is received from remocon or panel.

➔ the compressor is immediately turned off and only fan motor is operated at set blowing speed.
➔ it changes such as "High ➔ Med ➔Low ➔ High"( if Fan speed is selected).

2) The initial Fan motor speed is set to "High".

3) The set temperature can not be indicated and set.

3-2-3 Energy saver operation mode

If the compressor turn off at the cooling operation, the fan motor turn off after operation during the fixation time only,

*

and operation that energy saver by turn off the fixation time only, and operation that energy saver by turn off the motor
continuously before the condition of the compressor on.
The fan motor is not operated at flow wind operation.

*

Energy saver operation specification at the cooling operation.

*

1) Fan motor control in compressor on : operate with setting wind speed

2) Fan motor control in compressor off : After compressor off, the fan motor is operated breeze for 2 minutes and then it
turn off.

3) After the fan motor off, the compressor and fan motor is operated normally when the compressor on.

3-2 Samsung Electronics

Installation and Operating Instructions

3-2-4 Sleep operation mode

1) Enable to sleep operation only when cooling operation.

2) First, 7-SEG LED DISPLAY "SLEEP" while 15 second, Second, 7-SEG LED DISPLAY "8Hr"
And, automatically SET OFF after operated while 8 Hour

3) If sleep operation, setting Temperature rise 1˚C after 1 Hour

4) ON TIMER operation, not operation, ENERGY SAVER operation, not sleep operation.

3-2-5 Air flow blade swing motor operation

1) The Air flow blade swing motor is turned on and off according to Air flow blade swing operation in remocon or panel,
if SET is cooling or Fan operation mode.

2) If the operation mode is "ENERGY SAVER", in case of fan motor being turned off Air flow blade swing motor is
immediately turned off.

3-2-6 LED display indication in case of error detection

ERROR OPERATION

ROOM THERMISTOR

(OPEN or SHORT)

1) Set operation in case of error occurrence.

• Malfunction of each temperature sensor (open, short)

- Error mode display, warning sound.

- The operation status is off.

7-SEG

LED DISPLAY

E1 displayed

Samsung Electronics 3-3

Installation and Operating Instructions

3-2-7 Panel key operation

Key discription

Key name

POWER Operation start and stop

First ON = operation start, second ON = operation stop

*

- Selected as "OFF –> COOL or FAN". (DEFAULT=OFF)
Continuous operation is not available.

*

Mode Operation mode change

at every ON

*

- Selected as "COOL –> FAN". (Default=COOL)
If operation is OFF, it is considered as an invalid key.

*

Continuous operation is not available.

*

Fan speed Fan motor speed setting

at every ON

*

- Selected as “HIGH

T emperature Currently displayed set temperature increase/decrease

(▲ ▼)

Circulaire Circulaire motor operation and stop

Timer Setting the on/off timer

(ON/OFF)

Sleep SLEEP mode on and off

Energy Saver Power save mode on and off

At every pressing, the set temperature is changed by 1˚C

*

(increase(▲) : 18˚C → 19˚C → ... → 29˚C → 30˚C)
(decrease(▼) : 24˚C → 23˚C → ... → 17˚C → 18˚C)
In case of the set temperature of 30˚C, when the “increase” key is pressed

*

temperature does not increase any more.
In case of the set temperature of 18˚C, when the “decrease” key is pressed

*

temperature does not decrease any more.
In case of above situation, when “increase/decrease“ key is pressed by remocon,

*

warning sound is generated.
If operation is OFF, it is considered as an invalid key.

*

In case of “FAN” mode operation, it is considered as an invalid key.

*

Continuous operation is available.

*

Once ON=Circulaire motor operation. Another ON-Circulaire motor stop.

*

Continuous operation is not available.

*

In case of operation stop, when the fan motor is turned off it is considered as an invalid key.

*

Can set “OFF TIMER HOUR“ if set is operation

*

Can set “ON TIMER HOUR“ if set is not operation

*

Once ON = standby setting TIMER : “– –“ displayed

*

In case of key pressing in status of standby setting ON/OFF TIMER

*

(––Hr → 1Hr → 2Hr → ... –> 23Hr → 24Hr)
If press TIMER key countinuosly operate such the lower part

*

(––Hr → 1Hr → 2Hr → ... → 24Hr → --Hr)
Continuous operation is available.

*

Once ON=SLEEP mode on, Another ON=SLEEP mode off

*

• Continuous operation is not abailable

• Operation off, on timer Operation, save operation , not key operation
Not SLEEP operation is FAN mode

*

Once ON=Power save mode on, Another ON=Power save mode off

*

Continuous operation is not available.

*

If operation is OFF, it is considered as an invalid key.

*

Key operational function

→ MED → LOW → HIGH”. (DEFAULT=HIGH)

3-4 Samsung Electronics

3-2-8 LED lamp operation specifications

LAMP name Operations specifications

Installation and Operating Instructions

COOLING

FAN

HIGH

MED

LOW

TIMER

ENER SAVER

CIRCULAIRE

(1) (2)

The mode is set to "COOL" → ON
Others → OFF

The mode is set to "FAN" → ON
Others → OFF

The mode is set to "HIGH" → ON
Others → OFF

The mode is set to "MED" → ON
Others → OFF

The fan speed is set to "LOW" → ON
Others → OFF

The mode is set to "TIMER" → ON
Others → OFF

The mode is set to "ENERGY SAVER" → ON
Others → OFF

The mode is set to "CIRCULAIRE" → ON
Others → OFF

In case of set temperature display

→ NO. (1) 7–SEG LED DISPLAY indicates temperature of the tens digit
→ NO. (2) 7-SEG LED DISPLAY indicates temperature of the units digit

In case of time display

→ NO. (1) 7–SEG LED DISPLAY indicates time of the tens digit
→ NO. (2) 7–SEG LED DISPLAY indicates time of the units digit

In case of set temperature display

→ NO. (3) 7–SEG LED DISPLAY indicates temperature unit(˚)
→ NO. (4) 7-SEG LED DISPLAY indicates temperature unit(C)

In case of time display

(3)

(4)

→ NO. (3) 7–SEG LED DISPLAY indicates time unit(H) of the tens digit
→ NO. (4) 7–SEG LED DISPLAY indicates time unit(r) of the units digit

First, 7–SEG LED DISPLAY "SLEEP" while 15 second,
Second, 7-SEG LED DISPLAY "8Hr"

(1) (2) (3) (4)

Samsung Electronics 3-5

3-3 Remocon Control

Timer setting button

Sleep timer setting button

Operating mode

selection buttons

Energy Saver button

Air flow blade swing button

Temperature adjustment
buttons

Fan speed
adjustment buttons

ON/OFF button

3-3-1 Remocon key operation

11) In case of pressing ”POWER”key, operation start and stop.

12) In case of pressing ”COOL” key, cool mode operation start.

13) In case of pressing ”FAN” key, fan mode operation start.

14) In case of pressing ”HIGH” key, fan motor operates high speed.

15) In case of pressing ”MED” key, fan motor operates mid speed.

16) In case of pressing ”LOW” key, fan motor operates low speed.

17) In case of pressing ”ENERGY SAVER”on/off key, set operates as power saving mode.

18) In case of pressing ”▲”key, set temperature increase by 1˚C(18˚C ~ 30˚C).

19) In case of pressing ”▼”key, set temperature decrease by 1˚C(30˚C ~ 18˚C).

10) In case of pressing ”TIMER”key, the convenient reserve TIMER time increase by 1 Hr (1Hr ~ 24Hr).

11) In case of pressing ”SLEEP”key, SLEEP operates.

12) In case of power off, all keys except POWER key are considered as an invalid key.

3-6 Samsung Electronics

3-3-2 Resistor values table of “ROOM THERMISTOR” for each temperature

<Room thermistor>

Installation and Operating Instructions

T emperature

[˚C]

70
69
68
67
66
65
64
63
62
61
60

59
58
57
56
55
54
53
52
51
50

49
48
47
46
45
44
43
42
41
40

39
38
37
36
35
34
33
32
31
30

THERMISTOR RESISTOR

[Kohm] ±1%

2.229

2.296

2.365

2.437

2.512

2.589

2.669

2.752

2.838

2.928

3.021

3.116

3.216

3.319

3.426

3.537

3.652

3.772

3.897

4.026

4.161

4.300

4.444

4.594

4.749

4.912

5.080

5.256

5.439

5.630

5.828

6.033

6.246

6.468

6.699

6.941

7.192

7.455

7.729

8.015

8.313

T emperature

[˚C]

29
28
27
26
25
24
23
22
21
20

19
18
17
16
15
14
13
12
11
10

9
8
7
6
5
4
3
2
1
0

-1

-2

-3

-4

-5

-6

-7

-8

-9

THERMISTOR RESISTOR

[Kohm] ±1%

8.622

8.944

9.281

9.632

10.000

10.380

10.780

11.200

11.630

12.090

12.560

13.060

13.570

14.120

14.680

15.280

15.900

16.550

17.240

17.960

18.700

19.480

20.290

21.150

22.050

22.990

23.900

25.030

26.130

27.280

28.470

29.720

31.040

32.430

33.890

35.430

37.050

38.760

40.560

Samsung Electronics 3-7

MEMO

3-8 Samsung Electronics