Samsung AW0801B User manual

SERVICE Manual
CONTENTSAIR CONDITIONER
11. Precautions
12. Product Specifications
13. Installation and Operating
Instructions
14. Disassembly and Reassembly
15. Troubleshooting
16. Exploded Views and Parts List
17. Block Diagram
18. PCB Diagram
19. Wiring Diagram
10. Schematic Diagram
DB98_04511A(2)-CO 2/18/03 4:08 PM Page 3
ROOM AIR CONDITIONER
AW0801B AW1001B
AW1201B AW1801B

1. Precautions
Samsung Electronics 1-1
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 later-
intermittent 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.
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. 1-1 Avoid Dangerous Contact
Fig. 1-2 No Tapping and No Extension Cords
Fig. 1-3 No Kids Nearby!
Fig. 1-4 Clean the Unit
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2.Product Specifications
2-1 Table
Item Unit of
Measure AW0801B AW1001B AW1201B AW1801B
Type WINDOW
Dimension:
(Width×Height×Depth) mm 520×345×485 600×394×595 660×425×730
Voltage Volt 115 115 115 230-208
Phase - SINGLE
Frequency Hz 60 60 60 60
Operation Current A 7.4 9.7 11.7 8.2/8.9
Power Consumption W 820 1070 1270 1850/1800
Refrigerant Type FREON R22
Refrigerant Change g 390 480 1040 800
Capacity BTU/h 8000 10500 12400 17900/17400
EER BTU/h.W 9.8 9.8 9.8 9.7/9.7
Net Weight Kg 29 43 43 63
Condenser Row 2×15 2×17 2×17 3×19
Condenser Fan Type Propeller Fan
Evaporator Row 2×11 2×12 3×12 3×11
Evaporator Fan Type Blower
Fan Motor MODEL YSLA-40-6-0001 YGN60-6B YGN60-6B YSK160-6A
Compressor(Rotary) MODEL 44A080HU1EB 44B102HX1EF 44B124HX1EL 48D80IU1EH
Overload Protect - MRA12083-12008 MRA12109-12007 MRA98693-12007 MRA12046-12007
Compressor Capacitor μF/VAC 35/370 40/370 50/370 35/450
Fan Motor Capacitor μF/VAC 8/450 15/250 15/250 6/450
Fan Speed RPM 1020/980/930 890/850/800 890/850/800 1050/1000/960
Thermo Control - THERMISTOR
Samsung Electronics 2-1

MEMO
2-3 Samsung Electronics
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2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
W
H
H
W
H
H
W
H
H
W
H
H
W
H
H
W
H
H
W
H
H
W
H
H
Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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Front view Side view
(Unit : mm)
2-4 Samsung Electronics
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D
Temperature adjustment
buttons
Fan speed
adjustment buttons
On/Off button
Timer setting button
Sleep timer setting button
Mode selection
buttons
Energy Saver button
MODEL W H D
AW0801B 520 345 485
AW1001B 600 394 595
AW1201B
AW1801B 660 425 730

Samsung Electronics 3-1
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.
DB98_04511A(2)-1 2/18/03 4:09 PM Page 3-1

3-2 Function Description
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 = 75˚F
Fan speed = High
3) Set temperature indicating (setting) range : 1˚F interval from 64˚F to 86˚F.
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
DB98_04511A(2)-1 2/18/03 4:09 PM Page 3-2
Temperature/Timer
settings
Energy Saver indicator
Dry adjustment indicator
Fan speed
adjustment button
Timer indicator
Mode selection button
(Cool, Fan, Dry)
Temperature
adjustment buttons
On/Off button
Remote control
sensor

Samsung Electronics 3-3
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 Dry operation mode
If the atmosphere in the room is very humid or damp,use this operation mode. It can remove excess humidity
without lowering the room temperature too much.
1) The quantity of air is adjusted automatically.
3-2-6 LED display indication in case of error detection
ERROR OPERATION
ROOM THERMISTOR
(OPEN or SHORT)
7-SEG
LED DISPLAY
E1 displayed
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.
Installation and Operating Instructions
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MEMO
3-4 Samsung Electronics
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Samsung Electronics 4-1
4. Disassembly and Reassembly
4-1 Compressor Replacement Flow Chart
Locate cause of defect
Release refrigerant
Disconnect electrical wiring
from compressor
Cut refrigerant lines
from compressor
Plug disconnected lines
Replace compressor
Inspect electrical
wiring for defects,
and terminals for
correct and secure
connections
Solder discharge line
Corrective action
Check refrigerant oil level
Add oil as necessary
Solder suction line Use nitrogen gas
Perform soldering function
Fill system with
nitrogen gas
Check for leakage
Pinch and braze filling tube
Recharge system
Evacuate system
Release nitrogen gas?
Low oil level? N
Y
Y
N
N
Y
Leakage?
Problem?
DB98_04511A(2)-1 2/18/03 4:09 PM Page 3

4-2 Samsung Electronics
4-2 Checking the oil
4-2-1 Oil quality
4-2-2 Replacing and refilling the refrigerant oil
1. Change the compressor - DO NOT recharge the oil as the compressor itself is
already charged.
2. Change the condenser .... add 50cc
3. Change the evaporator .... add 50cc
4. When the refrigerant is replaced .... add 30cc oil.
5. After vacuum is completed, the oil is filled through the high pressure side.
6. In the event of a refrigerant leak, generally it is not necessary to add oil.
(Unless the oil has leaked significantly.)
Fill the transparent container with 10cc of oil, and then conduct the test.
Condition of
Refrigerant Cycle
Normal
Over-heated
Compressor Damage
Color
Straw Yellow
Brown Color
Dark Brown
Odor
No Odor
-
Pungent oil
Remarks
Return with the system
Change the oil
Change the oil
Oil Condition
DB98_04511A(2)-1 2/18/03 4:09 PM Page 4

4-3.Disassembly and Reassembly Procedure(AW1001B/AW1201B/AW1801B)
Stop operating the air conditioner, and pull out the power cord before repair.
No. Part Name Procedures Remarks
1 Ass’y Grille
1.Pull the Grille air inlet and Guard air filter out.
2.Remove the screw on the panel front.
3.Hold the lower part of panel with two hands
while pressing down on both sides of the lower
part of the cabinet, pull it forward by about
30mm,and then lift it up carefully for
removal.(Must un-connect the Displayer with
the controller inside.)
2 Ass’y Cabinet
1.Remove 2 screws on the both side of the
cabinet.
2.Pull the front part both side, and remove the
unit from the cabinet.
3 Ass’y Control
1.Remove the earth screw fixed on the cabinet.
2.Remove 3 screws fixed on the partition and
frame up.
3.Remove the screw fixed for the power cord.
4.Un-connect the motor wire and comp lead
wire, then take out the control box upward.
Samsung Electronics 4-3

Disassembly and Reassembly Procedure(AW1001B/AW1201B/AW1801B)
No. Part Name Procedures Remarks
4 Plate reinf&
Case evap up
1..Remove 4 screws on the partition and case
cond.
2.Remove the plate reinf. (The shape maybe
different depend on models)
3.Remove the seal sticked on the case evap up
carefully.
4.Pull the case evap up upward.
5 Plate evap
casing &
Blower
1.Remove the cover on the evaporator.
2.Remove all screws on the evaporator.
3.Pull the evaporator forward carefully.
4.Remove all screws fixed on plate evap
casing, then pull it out completely.
3.Remove the nut and remove the Blower.
6 Case Cond &
Fan Propeller
& Motor Fan
1.Remove 2 screws on the rear side of the
base pan, and all screws fixed on case cond.
2.Pull up the condenser from the base pan.
3.Remove the nut and remove the Propeller
fan.
4.Remove 4 screw(fixed on the mounter ), then
take out the motor.
4-4Samsung Electronics

4-5.Disassembly and Reassembly Procedure(AW0801B)
Stop operating the air conditioner, and pull out the power cord before repair.
No. Part Name Procedures Remarks
1 Ass’y Grille
1.Pull the Grille air inlet and Guard air filter out.
2.Remove the screw on the panel front.
3.Hold the lower part of panel with two hands
while pressing down on both sides of the lower
part of the cabinet, pull it forward by about
30mm,and then lift it up carefully for
removal.(Must un-connect the Displayer with
the controller inside.)
2 Ass’y Cabinet
1.Remove 2 screws on the both side of the
cabinet.
2.Pull the front part both side, and remove the
unit from the cabinet.
3 Ass’y Control
1.Remove the earth screw fixed on the cabinet.
2.Remove 3 screws fixed on the partition and
frame up.
3.Remove the screw fixed for the power cord.
4.Un-connect the motor wire and comp lead
wire, then take out the control box upward.
Samsung Electronics 4-5

Disassembly and Reassembly Procedure(AW0801B)
No. Part Name Procedures Remarks
4 Frame up
1..Remove 2 screws on the frame up and case
cond.
2.Remove all the screws on the frame up.
3.Pull the frame up upward.
5 Blower
1.Remove 3 screws on the evaporator.
2.Pull the evaporator from frame low carefully.
3.Remove the nut and remove the Blower.
6 Case Cond &
Fan Propeller
& Motor Fan
1.Remove 2 screws on the rear side of the
base pan, and all screws fixed on case cond.
2.Pull up the condenser from the base pan.
3.Remove the nut and remove the Propeller
fan.
4.Remove the earth screw(fix the motor earth
wire), then take out the motor upward.
4-6Samsung Electronics

Samsung Electronics 5-1
5. Troubleshooting
5-1 Basic Checkpoints for Troubleshooting
Check the basic checkpoints first to determine whether it is machine trouble or a problem
in the operation method. When it is not related to the basic checkpoints, perform checking
in accordance with the procedures of troubleshooting by symptom.
1) Is the voltage of the power source appropriate ?
(1) It should be within the rating voltage ±10% range.
(2) The air conditioner may not operate properly when the voltage is out of this range.
2) Is the connection with the fan motor, compressor wire, and starting condenser
appropriately made ?
3) The symptoms listed in the table below are not indicative of machine trouble.
Symptom Cause and check
No operation • Check whether there is power failure or the power plug is pulled out.
• Check whether the unit is stopped as a result of completion
of the sleep time.
• Pull out the power plug for ten seconds, and then insert it again.
Air flows, but • Check whether the Air filter is clogged with dust or is dirty.
no cooling • Check whether the desired temperature is too high. Set the desired
temperature to a lower level than the current temperature.
• Check whether it is in "FAN" mode.
The remocon does • Check whether battery is completely depleted.
not operate • Check whether the battery is properly inserted.
• Check whether the receiving window of the remocon for the assembly
main PCB is blinded.
• Check whether the remocon is affected by jamming due to a neon sign.
No temperature • Check whether the unit is in "FAN" mode.
setting (In "FAN" mode, only the current temperature is displayed, and the
desired temperature is not set.)
❈Checking and Display of Fault Area
ERROR OPERATION
ROOM THERMISTOR (OPEN OR SHORT)
ERROR OPERATION
E1 displayed
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5-2 Samsung Electronics
5-2 Troubleshooting by Symptom
5-2-1 No power
1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range.)
(2) Is the electric wire in good contact ?(CN 71, RY 71)
(3) Is the output voltage of the IC01(KA 7812) normal ?(DC 11.5V ~ DC 12.5V)
(4) Is the output voltage of the IC02(KA 7805) normal ?(DC 4.5V ~ DC 5.5V)
Turn off the power, and then turn it on again five
seconds later.
Replace the assembly main PCB.
Dose the buzzer sound, when the power on?
Check whether the "COOLING ICON" LED lamp is
on, and the operation starts when pressing the
ON/OFF button of the remocon.
Is the primary voltage of the transformer normal?
(the rating voltage ±10% range.)
Is the secondary voltage of the transformer normal?
(AC 13V ~ AC 17V)
Is the F701(3.15A) fuse blown?
Is the rectifier diode bridge(BD61) normal?
Are the IC01(KA7812) or IC02(KA7805) normal?
- Is the voltage of DC 17V ~ DC 23V applied at both
ends of the C101 electrolytic condenser?
- Is the voltage of DC 12V applied at both ends of
the C102 electrolytic condenser?
- Is the voltage of DC 5V applied at both ends of
the C103 electrolytic condenser?
Normal operation.
Normal operation.
Replace the fuse.
Check the power cord and electric wire.
Check and replace the trans.
• Check the BD61 for cold
soldering.
• Replace the rectifier diode
• Check both ends of the C101 for
short and cold soldering.
• Check the +12V for a short.
• Check the +5V for a short.
• Check and replace the C101~104.
•Check the IC01 or IC02 for cold
soldering and a short.
• Replace the IC01 or IC02.
Y
N
N
N
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
DB98_04511A(2)-2 2/18/03 4:12 PM Page 5-2

Samsung Electronics 5-3
Troubleshooting
5-2-2 When the Touch Key pad and Led Display
1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range.)
(2) Is the electric wire in good contact ?(CN71, RY71)
(3) Is the connection of the assembly main PCB, and TOUCH KEY PAD in good
contact? (SW01-SW05)
Check the micom
(IC05) for a short,
and replace it.
Check the micom
(IC05) for a short,
and replace it.
Check the Q901~
Q905 for a short,
and replace it.
Check the micom
(IC05) for a short,
and replace it.
Normal operation
Check the micom
(IC05) for a short,
and replace it.
Replace the membrane key pad
Replace the membrane
key pad.
Y
N
Normal operation NN
N
NN
N
Y
YY
YY
Y
Y
Turn off the power, and then turn it on again
five seconds later.
When the LED display is
not operated. When the membrane key is
not operated.
Is the voltage of the micom
(IC05) No.1, 2, 38~43 port a
square wave?
Is the voltage of the
micom (IC05) No.13, 14 port
a square wave?
Is the voltage of the micom
(IC05) No.3, 4, 10, 11, 44 port
a square wave?
Is the voltage of the micom
(IC05) No.3, 4, 10, 11, 44
port a square wave?
Is the voltage of the
Q901 ~ Q905 square wave?
Check the IC06
for a short, and
replace it.
N
Is the voltage of the
IC06No. 10~16 a square
value?
DB98_04511A(2)-2 2/18/03 4:12 PM Page 5-3

5-4 Samsung Electronics
Troubleshooting
5-2-3 When the remocon is not operated
1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range. )
(2) Is the electric wire in good contact ? (CN71, RY71)
(3) Is the assembly main PCB in good contact with the TOUCH KEY PAD(SW01-SW05)
(4) Is the battery voltage of the remocon above DC 2.7V?
Turn off the power, and then turn it on
again five seconds later.
Replace the assembly main PCB.
Dose the Buzzer sound, when the power on?
Check whether the "COOLING ICON" LED lamp is on
and th operation starts when pressing the
on/off button of the remocon.
Is the battery voltage of the remocon above
DC 2.7V?
Is the collector voltage of the remocon Q1, Q2
a square wave?
Does the X-TAL(RJ 455JB) oscillate normally?
Is the input voltage of the micom(IC05) No.15
pin of the assembly main PCB a aquare wave?
Go to the clause "No power".
The remocon is normally operated.
Replace the battery.
• Check the X-TAL for cold soldering
and a short.
• Replace relevant components.
• Check the micom(ICT1) Q1, and
Q2 for cold soldering and a short.
• Replace relevant components.
• Check the R415 components.
• Check the assembly main PCB
micom(IC05).
N
Y
N
Y
Y
Y
Y
N
N
N
N
Y
DB98_04511A(2)-2 2/18/03 4:12 PM Page 5-4

Samsung Electronics 5-5
Troubleshooting
5-2-4 When the compressor is not operated
1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range. )
(2) Is the desired temperature lower than the indoor temperature in the “COOL” mode?
(Compressor stopped)
(3) Is the starting condenser in good contact?
(4) Is the electric wire in good contact ? (CN71, RY71)
(5) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal ?
Turn off the power, and then turn it on again five
seconds later.
Replace the compressor.
Dose the Buzzer sound, when the power on?
Check whether the "COOLING ICON" LED lamp is on
and the operation starts when pressing the on/off
button of the remocon.
Is the IC03 output normal?
- When the compressor is on, IC03
No. 13pin →Low.
Does the relay(RY71) operate normally?
- When the compressor is ON, the RY71 should operate.
Is the compressor normal?
Go to the clause "No power".
• Go to the clause "when he remocon
does not operate".
• Check the IC03 for short and cold
soldering.
• Replace the IC03.
• Check the relay coil resistance.
(resistance : About 150Ω±20Ω)
• Replace the relay.
• Check the operation of the O.L.P,
and replace it if necessary.
• Check the compressor
resistance.(0Ω: short, ∞Ω : open)
N
Y
Y
Y
Y
Y
N
Normal operation.
N
Y
N
N
N
Check whether the compressor is activated in three
minutes after turning on the power with the "CoolING
ICON" LED lamp being switched on when selecting the
cool mode of the remocon.
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