SAMSUNG SH09BWHA, X, SH12BWHA, X Air Conditioner Service Manual
Below you will find brief information for Air Conditioner SH09BWHA, Air Conditioner SH12BWHA. The manual describes the specifications, operating instructions, disassembly and reassembly procedures, refrigerating cycle diagram, and troubleshooting steps for these air conditioning units. It also provides exploded views and parts lists for both the indoor and outdoor units. This manual is intended for service technicians and experienced users who are familiar with air conditioner repair and maintenance.
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DB98_19047A(1)_co 4/21/04 2:26 PM Page 3
ROOM AIR CONDITIONER
INDOOR UNIT
SH09BWHA
SH12BWHA
OUTDOOR UNIT
SH09BWHAX
SH12BWHAX
SERVICE Manual
AIR CONDITIONER CONTENTS
1
1. Product Specifications
1
2. Operating Instructions
1
3. Disassembly and Reassembly
1
4. Refrigerating Cycle Diagram
1
5. Set Up the Model Option
1
6. Troubleshooting
1
7. Exploded Views and Parts List
1
8. Block Diagram
1
9. PCB Diagram
10. Wiring Diagram
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1. Product Specifications
1-1 Table
Model
Item
Type
Performance
Power
Size
Cooling
Heating
Dehumidifying
Power Cord
Outer Dimension
Weight(Net)
Refrigerant Pipe kW kW
| /h
Air Volume
Noise
Cooling
Heating
Cooling
Heating m 3 /min dB
Energy Efficiency Ratio
Cooling
Heating
W/W
Power V-Hz
Cooling
Power Consumption W
Heating
Cooling
Operating Current A
Heating
Cooling
Power Factor %
Heating
Starting Current A
Length
Number of Core Wire m
Capacity
Width x Height x Depth
A mm inch kg
Liquid
GAS mm x L(m) mm x L(m)
D x L(mm) Drain Hose
Type
Compressor Motor Type
Rated Output
Oil Type
Blower
Type
Motor Type
Rated Output W
Heat Exchanger
Refrigerant Control Unit
Freezer Oil Capacity
Refrigerant to Change(R410A)
Protection Device(OLP)
Cooling Test Condition
Maximum Operation Condition cc g
SH09BWHA SH12BWHA
Indoor unit Outdoor unit
Wall-mounted
2.65(1.40~3.50)
3.60(1.40~4.40)
1.4
8.5
25
9.5
25
40 53
40 53
3.79
3.83
1, 220-240 / 50
700(315~1,070)
940(285~1,240)
3.3(1.7~5.0)
4.4(1.6~5.4)
94.4
97.3
10
↓
-
Indoor unit
8.7
9.7
25
25
41 53
41 53
3.27
3.62
1, 220-240 / 50
1,070(315~1,350)
1,160(290~1,575)
5.0(1.7~6.0)
5.4(1.6~6.9)
98.6
98.6
10
↓
-
Outdoor unit
Wall-mounted
3.50(1.40~4.00)
4.20(1.40~5.10)
1.9
8.4
-
250V, 15A
825 x 285 x 189
32.5 x 11.2 x 7.44
720 x 548 x 265
28.4 x 21.6 x 10.4
33.2
ø6.35 x 7.5
ø9.52 x 7.5
ø18 x 550
Rotary(SAMSUNG)
3 PHASE DC MOTOR
825 x 285 x 189
32.5 x 11.2 x 7.44
8.4
-
250V, 15A
720 x 548 x 265
28.4 x 21.6 x 10.4
ø6.35 x 7.5
ø9.52 x 7.5
ø18 x 550
33.2
Rotary(SAMSUNG)
3 PHASE DC MOTOR
Cross-flow steel
860
PVE(FV50S)
Propeller steel
16
2ROW 12STEP
20
2ROW 24STEP
EEV + CAPILLARY TUBE
320
Cross-flow steel
16
860
PVE(FV50S)
2ROW 12STEP
25
2ROW 24STEP
EEV + CAPILLARY TUBE
320
Propeller resin
1,000
204CTB
1,000
204CTB
INDOOR UNIT : DB27˚C WB19˚C OUTDOOR UNIT : DB35˚C WB24˚C
INDOOR UNIT : DB32˚C WB23˚C OUTDOOR UNIT : DB43˚C WB26˚C
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1-2 Pressure Graph
■ SH09BWHA
■ SH12BWHA
Outdoor Temp. (˚C)
2
Outdoor Temp. (˚C)
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4
5
6
2. Operating Instructions
2-1 The Feature of Key in remote control
BUTTON No
1
2
(UP)
(DOWN)
FUNCTION
On/Off button.
Press the button to stop or run the air conditioner.
Temperature adjustment button(UP).
The temperature is increased by the pressing the temperature button.
Temperature adjustment button(DOWN).
The temperature is decreased by the pressing the temperature button.
Mode selection button.
Each time you press this button, mode is changed in the following order
√
In case of Heat pump model
: Auto Mode
: Cool Mode
: Dry Mode
3
√
In case of Cooling only model
: Fan Mode
: Heat Mode
7
8
Samsung Electronics
Fan speed adjustment button.
Each time you press this button, FAN SPEED is changed in the following order.
) Automatic(rotated :
Low
Medium
High
Flap button.
It adjusts the airflow to upward and downward.
Turbo button.
The air conditioner cools or heats the room as quickly as possible.
After 30minutes, the air conditioner is reset automatically to the previous mode.
Energy saving button.
If you wish to save energy when using your air conditioner, select the Energy saving mode with the button.
Sleep button.
The sleep timer can be used when you are cooling or heating your room to switch the air conditioner off automatically after a period of 6 hours.
3
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11
12
No
9
Operating Instructions
BUTTON
10
FUNCTION
On Timer button.
The On Timer enables you to switch on the air conditioner automatically after a given period of time that is from 1 hour to 24 hours.
To set the operating time, press the button one or more times until the required time display.
Off Timer button.
The Off Timer enables you to switch off the air conditioner automatically after a given period of time that is from 1 hour to 24 hours.
To set the operating time, press the button one or more times until the required time display.
Timer Set/Cancel button.
After setting On Timer or Off Timer, press the button to set it completely.
And press the button again to cancel On Timer or Off Timer set.
Battery life indicator.
If you want to check the battery life, press the button.
The longer will remain the battery life.
If one battery life indicator remains, replace new batteries.
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Operating Instructions
2-1-1 Name & Function of key in remote control
1. AUTO MODE : In this mode, operation mode(COOL,
HEAT) is selected automatically by the difference between the setting and room temperature.
√ In case of Heat pump model.
√ Cooling or heating operation is selected based on difference of Ts and Tr. Cooling and heating operation is automatically interchanged during an operation.
√ In case of Cooling only model.
Operation Type
Cool Operation
Tr
≥
Ts+1.0°C
Tr
≤
Ts
Room Temp.
Compressor ON
Compressor OFF
Ts : Setting temperature.
2. COOL MODE : The unit operates according to the difference between the setting and room temperature.
(16°C~30°C)
3. HEAT MODE(In case of Heat pump model) :
The unit operates according to the difference between the setting and room temperature.(16°C~30°C)
*Prevention against cold wind : In order to prevent the cool air from flowing out at the heat mode, the indoor fan does not operate or operates very slowly in the following cases At this time, the indoor heat exchanger will be preheating.
- For 3~5 minutes after the initial operation
- For deicing operation
- The operation of an indoor fan in accordance with the temperature of an indoor heat exchanger
The temperature of indoor heat exchanger below 28˚C
28˚C~below 34˚C
34˚C~below 40˚C above 40˚C
Indoor fan speed off
LL Speed
L Speed
Setting Speed
*High temperature release function : It is a function to detect an outdoor overload by the sensor of an indoor heat exchanger and to turn the outdoor fan or the compressor ON/OFF for safety.
*Deice : Deicing operation is controlled by indoor unit's heat exchanger temperature and accumulating time of compressor's operation.
Deice ends by sensing of the processing time by deice condition.
4. DRY MODE : Has 4 states, each determined by room temperature.
The unit operates in DRY mode.
*Compressor ON/OFF time is controlled compulsorily
(can not set up the fan speed, always breeze).
*Protective function : Low temperature release.
(Prevention against freeze)
5. TURBO MODE : This mode is available in AUTO, COOL,
HEAT, DRY, FAN MODE.
When this button is pressed at first, the air conditioner is operated "powerful" state for 30 minutes regardless of the setting temperature, room temperature.
When this button is pressed again, or when the operating time is 30 minutes, turbo operation mode is canceled and returned to the previous mode.
*But, if you press the TURBO button in DRY or FAN mode that is changed with AUTO mode automatically.
6.
SLEEP MODE : Sleep mode is available only in COOL or
HEAT mode.
The operation will stop after 6 hours.
*In COOL mode : The setting temperature is automatically raised by 1°C each 1hour When the temperature has been raised by total of 2°C, that temperature is maintained.
*In HEAT mode : The setting temperature is automatically dropped by 1°C each 1hour.
When the temperature has been dropped by total of
2°C, that temperature is maintained.
7. FAN SPEED : Manual (3 step), Auto (4 step)
Fan speed automatically varies depending on both the difference between setting and the room temperature.
8.
COMPULSORY OPERATION :
For operating the air conditioner without the remote control.
*The operating is the same function that AUTO MODE in the remote control.
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Operating Instructions
9.
FLAP : BLADE-H is rotated vertically by the stepping motor.
*Flap Set : Press the button under the remote control is displayed on LCD the and the blades move up and down. If the button press one more time, blades rotation is stop.
10. SETTING THE ON/OFF TIMER. :
*ON TIMER : The On Timer enables you to switch on the air conditioner automatically after a given period of time.
You can set the period of time from 1 hour to 24 hours.
*OFF TIMER : The Off Timer enables you to switch off the air conditioner automatically after a given period of time. You can set the period of time from 1 hour to 24 hours.
11. BUZZER SOUND : Whenever the On/Off button is pressed or whenever change occurs to the condition which is set up or select, the compulsory operation mode, buzzer is sounded "beep".
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2-2 Replace PCB Model option
2-2-1 Replace PCB model option
Remove power cord
Replace the PCB module
Check the connection and plug in
Does all display lamp blink?
Yes
Refer to set up the Model option(14~17page)
No
Replace another PCB
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3. Disassembly and Reassembly
Stop operation of the air conditioner and remove the power cord before repairing the unit.
3-1 Indoor Unit
No
1
Parts
Front Grille
Procedure
1) Stop the air conditioner operation and block the main power.
Remark
2) Open the Front Grille by pulling right and left sides of the hook.
3) Loosen 1 of the right screw and detach the Terminal Cover.
4) Detach the thermistor from the Front
Grille.
5) Loosen 2 fixing screws of Front Grille.
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No Parts Procedure
6) Unlock 2 hooks to fix Panel Front and
Tray Drain.
7) Unlock 3 hooks to fix Panel Front and
Back-Body.
Disassembly and Reassembly
Remark
2 Control-In
(Main PCB)
1) Take all the connector of PCB upper side out. (Inclusion Power Cord)
2) Detach the outdoor unit connection wire from the Terminal Block.
3) Loosen 4 fixing screws of Ass'y Control-In.
3 Tray Drain 1) Pull Tray Drain out from the Back Body.
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Disassembly and Reassembly
No
4
Parts
Heat Exchanger
Procedure
1) Loosen 2 fixing earth screws of right side.
2) Detach the Connection Pipe.
3) Detach the Holder Pipe at the rear side.
4) Loosen the 3 fixing screws of right and left side.
5) Lifting the Heat Exchanger up a little to push the up side for separation from the indoor unit.
Remark
10
5 Fan Motor
&
Cross Fan
1) Loosen the fixing screw and detach the
Motor Holder.
2) Detach the Fan Motor from the Fan.
3) Detach the Fan From the left Holder
Bearing.
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3-2 Outdoor Unit
No
1
Parts
Common Work
Procedure
1) Loosen each 3 fixing screws on both right and left Cabinet-Side edge and a fixing screw on the Cabinet-Front lower to detach the Cabinet-Front.
2) Loosen 1 fixing screws of the
Cover-Valve.
Remark
3) Loosen 6 fixing screws of the Cabinet-Side
RH.
4) Loosen 2 fixing screws of the Cabinet-Side
LF.
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Disassembly and Reassembly
No
2
Parts
Fan & Motor
Procedure
1) Detach the Nut Flange.(Turn counterclockwise because the screw is right-handed)
2) Detach the Fan.
3) Loosen 4 fixing screws to detach the Motor.
3 Heat Exchanger 1) Loosen 2 fixing screws on both sides.
2) Disassemble the pipe in both inlet and outlet with welding torch.
3) Detach the Heat Exchanger.
Remark
12
4 Compressor 1) Loosen the Terminal Cover nut to open the
Terminal Cover.
2) Disassemble the cloth sound felt.
3) Disassemble the pipe in both inlet and outlet of the Compressor with welding torch.
4) Disassemble the pipe in both inlet and outlet of the Condenser with welding torch.
5) Loosen the 3 bolts at the bottom.
6) Detach the Compressor.
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4. Refrigerating Cycle Diagram
Indoor Unit
Heat
Exchanger
(Evaporator)
T
1
Outdoor Unit
Liquid side
2-Way valve
Capillary tube
EEV
Heat
Exchanger
(Evaporator)
T
2
Gas side
3-Way valve
Compressor
4-Way valve
Cooling
Heating
Gas leak check point
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5. Set Up the Model Option
5-1 Setting Option Setup Method
ex) Option No. :
Step 1 : Enter the Option Setup mode.
1 st Take out the batteries of remote control.
2 nd
3 rd
Press the temperature insert the battery again.
button simultaneously and
Make sure the remote control display shown as .
Step 2 : Enter the Option Setup mode and select your option according to the following procedure.
1,4
3
2,5
1
Feature
Setting Option SEG1.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . .
repeatedly.
2
Setting Option SEG2.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . .
repeatedly.
3
Change it into the set display of Option SEG3 and SEG4 with the button.
4
Setting Option SEG3.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . .
repeatedly.
5
Setting Option SEG4.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . .
repeatedly.
14
Display
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7,10
6,9
8,11
13
12
14
6
Feature
Change it into the set display of Option SEG5 and SEG6 with the button.
7
Setting Option SEG5.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . .
repeatedly.
8
Setting Option SEG6.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . .
repeatedly.
9
Change it into the set display of Option SEG7 and SEG8 with the button.
10
Setting Option SEG7.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . .
repeatedly.
11
Setting Option SEG8.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . .
repeatedly.
12
Change it into the set display of Option SEG9 and SEG10 with the button.
13
Setting Option SEG9.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . .
repeatedly.
14
Setting Option SEG10.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . .
repeatedly.
Set Up the Model Option
Display
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Set Up the Model Option
Step 3 : Upon completion of the selection, check you made right selections.
Whenever you press the button, the set Option will be displayed.
Step 4 : Pressing the ON/OFF button ( )
When pressing the operation ON/OFF key with the direction of remote control for unit, the sound "Ding" is heard and the
OPERATION LED lamp is flickering at the same time, then the input of option is completed. (If the "ding" sound isn't heard, try again pressing the ON/OFF button.)
Step 5 : Unit operation test-run
First, Remove the battery from the remote control.
Second, Re-insert the battery into the remote control.
Third, Press ON/OFF ( ) key with the direction of remote control for set.
• Error Mode
1 st If all lamps of indoor unit are flickering, Plug out, plug in power plug again and press ON/OFF key to retry.
2 nd If the unit is not working properly or all lamps are continuously flickering after setting the option code, see if the correct option code is set up for its model.
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5-2 Table of the option Code
Model
SEG1 SEG2 SEG3 SEG4
Option Code
SEG5 SEG6 SEG7 SEG8 SEG9 SEG10
SH09BWHA 0 5 0 0 0 0 1 3 4 0
SH12BWHA 0 5 0 1 0 0 1 3 5 1
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6. Troubleshooting
Since the inverter air conditioner is equipped with Electrical control circuits at both Indoor & outdoor unit, the trouble shooting shall be performed according to the error mode.
Inside the controller of the outdoor unit (inverter), the large capacity of electrolytic condenser so that it takes the time to discharge after the power off since the electrical charge remains(the charging voltage DC 340V).
Take care of the electrical shock by contact on the charging part before the discharge after the power off. (It takes approximately
2 minutes to discharge).
6-1 Basic items for trouble shooting
1. Is the power source proper?
The power source shall be in the range of the rated voltage ±10%. If it is out of this range, it may cause the abnormal operation.
2.
Is the connection made between the indoor and outdoor unit?
The connection between indoor and outdoor unit shall be performed with 4 wire. (connection cable of indoor and outdoor unit + ground wire).
3. The phenomena as follows are not out of order.
No
1
Phenomena
The operation is not done.
2 The wind comes out but the heating/cooling is not performed.
3 The remote control does not operate.
4 The wind volume is not adjusted.
5 The temperature is not set.
6 The operation lamp continues to be flickering.
7 The immediate operation starts without control of remote control when plugged
Cause and reason
• Is the power off or the power unplugged?
• Does it stop because it is the completion time?
• Unplug and plug again the power source for 2 minutes.
• Is the filter clogged with dust or dirty?
• Is there any direct light on the outdoor unit or any obstacle against it?
• Is the selected temperature too high?
Lower the selected temperature lower than the current one (during cooling).
• Is the selected temperature too low?
Raise the desired temperature than the current one? (during heating)
• Is the "Fan only Mode" operation?
• Is the battery run out?
• Is the battery inserted in the wrong way(+, -)?
• Is the detection part of the indoor unit blocked?
• Does it interfered with the radio of neon sign?
• Is the operation selected among one of Auto / Dry / Turbo / Sleeping?
• The temperature setting is not required since the wind volume set automatically.
• Check again at the state of Cooling / Fan only / Heating.
• Is the operation selected among the Dry / Turbo / Sleeping / Fan only Mode.
Since the temperature is automatically set, the temperature setting is not required.
• Check again at the cooling / heating state.
• The standard temperature ±2˚C during the automatic operation.
• Push the Operation / Stop button.
• Unplug and plug the power source.
• It is the case that the auto restart function works.
✳ Auto restart function is the convenient function where the operation state is memorized in the Memory IC during the blackout and the operation restarts when the power comes back.
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6-2 The first determination method of troubled part
6-2-1 Error mode display of indoor unit
LAMP
OPERATION TIMER
X
TURBO
X
X
Description
Check point
OUTDOOR INDOOR
Temp.-Sensor Indoor unit room temperature sensor error (open / short)
Indoor unit heat exchanger temperature sensor error (open / short) Temp.-Sensor
X X Indoor fan motor malfunction Fan and cable
X
PCB
Option code
PCB, Cable between
Indoor and outdoor unit
X
EEPROM error
Option error
Abnormal communication error (Indoor - Outdoor unit)
Outdoor unit temperature sensor error
- Outdoor temp.-sensor
- Deice temp.-sensor
- OLP temp.-sensor
- Discharge temp.-sensor
- Heatsink temp.-sensor
Temp.-Sensor
Temp.-Sensor
Temp.-Sensor
Temp.-Sensor
PCB
X : Lamp off : Lamp flickering
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Troubleshooting
6-2-2 Error mode display of outdoor unit board
RED
GRN
YEL
ULN2003
20
LAMP of Display Monitor
YELLOW GREEN RED
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Description
: Lamp on : Lamp flickering X : Lamp off
Power Off / VDD NG
Comp. Peak Current (O.C.)
Communication NG
Comp. Starting error
Heatsink sensor error
Normal Operation
DC-Iink overvoltage error
4-Way valve error
Heatsink Temp. trip
Outdoor Sensor error(Open/Short)
Discharge sensor temp. trip
Discharge sensor error(Open/Short)
OLP sensor error(Open/Short)
CT sensor error
Unit Over Current protection
Deice sensor error(Open/Short)
OLP sensor temp. trip
OPTION error (EEPROM)
Compressor rotation error
DC fan error (SH12BWHX only)
DC-Link voltage sensor error
PFC OC error
NO GAS error
AC Line zero-crossing error
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6-3 Sequence of trouble shooting for inverter aircon
OPERATION START
• The indoor unit does not work even though the power is plugged.
• There in no sound "DING"
• The lamp is not on the display.
The indoor unit does not work when operated by the remote control.
Check the indoor unit control board. (A)
Checking the remote control.(B)
Check the control board and display board of indoor unit.(C)
The lamp of the indoor display is flickering and indoor unit stops several minutes after the indoor unit stars.
Check the error mode by confirming the lamp flickering of indoor unit display.
Timer(
Operation(
) lamp flickering
→
Check of the indoor temperature sensor (D)
), Timer( ) lamp flickering
→
Check of the indoor heat exchanger (D)
Turbo( ) lamp flickering
→
Check of indoor unit fan motor (E)
Check the indoor unit
Timer( ), Turbo( ) lamp flickering
→
Check the lines of the indoor and outdoor communication (F)
Check the communication line
Operation( ), Turbo(
Operation( ), Turbo(
) lamp flickering
→
Check of the outdoor unit temperature sensor
: Discharge temperature sensor (G)
: Comp top OLP temperature sensor (G)
: Deice temperature sensor (H)
: Outdoor temperature sensor (H)
) lamp flickering
→
Check of the outdoor unit error mode display
: (I) – (R)
Check the outdoor unit
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Troubleshooting
6-3-1 (A) Check of indoor unit control board
√
Unplug the power cord and plug it after 5 seconds.
√ Press the on/off switch located indoor unit inside to operate the air conditioner.
◆ • If the air conditioner operates, check the remote control and indoor unit display board.
◆ • If the air conditioner does not operates, check according to the sequence of the followings:
√ Check sequence of indoor unit control board
◆ Step 1 : Check whether two wires of power cord (Sky-blue, brown) are connected correctly to the terminal block and
Relay on the control board.
◆ Step 1 : • Sky -blue : connected to "N(1)" of Terminal block
◆ Step 1 : • Brown : connected to RY71 Tab terminal (control board outer side)
◆ Step 2 : Check whether the wire connected to the terminal block is connected to th control board.
(Control board)
CN71
RY71
CN71
SKY-BLU
BRN
BLK
(Terminal block)
N(1)
1
2
◆ Step 3 : Check whether the fuse (F701) on the control board is normal. (3.15[A]/250[V]:F701)
◆ Step 1 : • If the fuse is broken, replace it with new one.
◆ Step 4 : Check the output voltage of SMPS on the control board.
◆ Step 1 : • Input power AC178 ~ AC 264V— • CN22 1-3pin : DC12V
◆ Step 1 : - Input power AC178 ~ AC 264V— • CN22 2-3pin : DC5V
◆ Step 1 : - ✳ CN22 : As socket not mounted measure at the solder points
◆ Step 5 : Check whether the control board gets wet with dew
◆ Step 1 : • Dry the control board.
◆ Step 6 : Check whether tiny metal objects make a short circuit on the PCB, especially between pins of the surface mount IC.
◆ Step 1 : • remove the objects. Do not use splay solvent or some components may get damage by solvent.
6-3-2 (B)(C) Display board and remote control check of indoor unit
√ Check whether the connection wire of Display board is correctly connected to CN91 connector.
√
Check the voltage of remote control battery. - the voltage of one battery shall be higher than about 1.4V, and then the remote control operates normally.
√
Check whether the neon sign is on and the 3 wave long fluorescent lamp is on around the indoor unit. - After putting all lamps of the indoor out and then operate it by remote control. If it operates with the remote control, it is the abnormality due to the interference from the light of lamps. (Aircon unit is normal).
6-3-3 (D) Check the indoor temperature sensor and indoor heat exchanger temperature sensor.
Take out the thermistor connected to the connector (CN43) of control board of indoor unit and measure the resistance between two wires and if it is same as follows: it is normal but if not, replace it.
Ambient temperature
(°C)
Resistance of thermistor [K
Ω
]
15°C
14.68
20°C
12.09
25°C
10
30°C
8.31
35°C
6.94
40°C
5.83
22 Samsung Electronics
DB98_19047A(1)_1 4/21/04 2:27 PM Page 23
Troubleshooting
6-3-4 (E) Check of indoor unit fan motor
■
1. √ Check whether the wires are connected surely between control board(CN72) and running capacitor(Tab).
■
1.
√
Check whether the wire of fan motor is connected to the control board (CN73,CN44) of indoor unit.
■ 1. √ Check whether the error mode displays after the strong rotation for approximately 15 seconds since air conditioner turned on.
■ 1. √ • In case the error code displays after the fan motor is rotating for 15 seconds.
→
Defect of HALL IC of fan motor and/or control board.
■
1.
√
• In case that error code displays without fan motor rotating after 15 seconds.
→
Operate with making short circuit of AC side pins of SSR(SS71) of indoor unit control board. And then if the fan motor does not operate, it is the fan motor defect.
If it rotates, it is the defect of control board(SS71,IC05,IC04).
6-3-5 (F) Check of communication line between the indoor unit and outdoor unit
■
Communication error mode
■
1. Check of connection
■ 1.
√ Check whether the cable wire connecting the indoor unit with outdoor unit is correctly connected to the N(1), 1, 2 terminal.
(If the wire is connected reversely, the communication error occurs)
■
1.
√ If the cable connecting the indoor unit and outdoor unit is longer than 20m, error mode may occur (shorten the cable length).
■
Check of indoor unit
■ √ Check whether the connection wire of the terminal block and control board of indoor unit is correct.
(Control board)
CN71
RY71
CN71
SKY-BLU
BRN
BLK
(Terminal block)
N(1)
1
2
■
Check of outdoor unit
■ √ Check whether the connection wire of the terminal block and control board of outdoor unit is correct.
(Control board)
TB-N
TB-L
CN04
SKY-BLU
BRN
BLK
(Terminal block)
N(1)
1
2
■ 2. Check of power supply to the outdoor unit
■ 2.
After operation of aircon, select the turbo mode and approximately 3minutes later, check whether the red color lamp of control board (to be seen if the top cover of outdoor unit) is on.
■
2.
→
If the red lamp (LED 1) is not on, check the power part of control board of outdoor unit.
■ 2.
• Check the connection of reactor.
■ 2. •
→
If the red lamp (LED 1) is on and green lamp is flickering, it is normal.
6-3-6 (G) Check of discharge temperature sensor and comp top OLP temperature sensor.
√ Connector of outdoor unit control board
(PIN#3,4 of CN51 - discharge temperature sensor), (PIN#1,2 of CN52-OLP Temperature sensor)
Measure the resistance between two wires and if it is same as follows, it is normal but if not, replace.
Ambient temperature
(°C)
Resistance of thermistor [K
Ω
]
0°C
553
10°C
362
20°C
242
30°C
166
40°C
165
50°C
82
Samsung Electronics 23
DB98_19047A(1)_1 4/21/04 2:27 PM Page 24
Troubleshooting
6-3-7 (H) Check the defrost temperature sensor and outdoor temperature sensor.
√
Connector of outdoor unit control board
(PIN#1,2 of CN51 - outdoor temperature sensor),(PIN#3,4 of CN52-deice Temperature sensor)
Measure the resistance between two wires and if it is same as follows, it is normal but if not, replace it.
Ambient temperature
(°C)
Resistance of thermistor [K
Ω
]
15°C
14.68
20°C
12.09
25°C
10
30°C
8.31
35°C
6.94
40°C
5.83
6-3-8 (I) Check the heatsink temperature sensor of IPM
√ This sensor is inside of the IPM module and PIN#24,25 of IPM module are the sensor terminal.
Usually PIN solder crack or short circuit with small metal object cause sensor error.
Check the object to make short circuit and solder condition of these pins.
Ambient temperature
(°C)
Resistance of thermistor [K
Ω
]
15°C
77.4
20°C
61.4
25°C
49.1
30°C
39.5
35°C
31.9
40°C
26
6-3-9 (J) Check of operation current abnormal increase mode
√
The operation abnormal current mode is the protection control for the safe operation by detecting the operation current of inverter aircon by the current sensor on the control board.
√ If the operation current abnormal increase occurs,
√ • The ventilation is not good because the outdoor unit is installed wrong (the ambient temperature is higher than 50 °C)
√
•
→
Reinstall the outdoor unit so that the good ventilation can be made.
√ • If the Refrigerant is overcharged.
√ •
→
Check the amount of Refrigerant.
√ • If the comp is locked.
√
•
→
Replace the comp.
√ • If the comp is operating without the revolution of fan motor.
√ •
→
Check the fan motor connector, replace the fan motor.
√ • If the protection cover is operating with bending to the outdoor.
√
•
→
Take out the protection cover.
√ • If two outdoor units are operating face to face. (the bad ventilation is made)
√ •
→
Reinstall the outdoor unit for the good ventilation.
√ • The air circulation is bad due to the attachment of falling leaves
√
•
→
Take away the leaves for the good ventilation.
√ Check and clean the dirt of current sensor block of outdoor control board.
√ especially • IC83 pin solder • C437 47uF • R459 47K • R461 4.7K
6-3-10 (K) Check of Current sensor, Voltage sensor on the board.
√ These errors are from component trouble on the outdoor control board.
√ →
Replace the outdoor control board
24 Samsung Electronics
DB98_19047A(1)_1 4/21/04 2:27 PM Page 25
Troubleshooting
6-3-11 (L) Check of instantaneous over-current protection of IPM circuit.
√ Inverter instantaneous over-current protection mode is the mode to be actuated in order to prevent the damage of elements from the peak current of IPM circuit elements.
√ In case that the inverter circuit instantaneous over-current protection mode actuates.
■
Condition of installation
■
• The ventilation is not good because the outdoor unit is installed wrong (the ambient temperature is higher than 50 (°C) )
■ •
→
Reinstall the outdoor unit so that the good ventilation can be made.
■
• In case that the operation is made with the cover bent of the outdoor unit.
■ •
→
Take out the cover.
■
• If two outdoor units are operating face to face, (the bad ventilation is made)
■ •
→
Reinstall the outdoor unit for the good ventilation.
■
• The air circulation is bad due to the attachment of falling leaves.
■ •
→
Take away the leaves for the good ventilation.
■
• If the Refrigerant is overcharged.
■ •
→
Check the amount of Refrigerant.
■
Unit defect
■
• If the comp is locked.
■ •
→
Replace the comp.
■
• If the comp is operating without the revolution of fan motor.
■ •
→
Check the fan motor connector and replace the fan motor.
■
• In case the parts of the control board is damaged.
■ •
→
Replace the outdoor control board.
6-3-12 (M) Check of the comp discharge gas temperature and OLP temperature abnormal rise.
√ If the comp discharge gas temperature and OLP temperature rises higher than a certain level, it protects the circuit.
√ If the comp discharge gas temperature and OLP temperature rises abnormally,
■
Condition of installation
■
• The ventilation is not good because the outdoor unit is installed wrong (the ambient temperature is higher than 50 (°C) )
■ •
→
Reinstall the outdoor unit so that the good ventilation can be made.
■
• In case that the operation is made with the cover bent of the outdoor unit.
■ •
→
Take out the cover.
■
• If two outdoor units are operating face to face, (the bad ventilation is made)
■ •
→
Reinstall the outdoor unit for the good ventilation.
■
• The air circulation is bad due to the attachment of falling leaves
■ •
→
Take away the leaves for the good ventilation.
■
• If the refrigerant is insufficient.
■ •
→
Fill up the amount of refrigerant.
■
Unit defect
■
• If the comp is locked.
■ •
→
Replace the comp.
■
• If the comp is operating without the revolution of fan motor
■ •
→
Take out the protection cover.
■
•
→
Check the fan motor connector and replace the fan motor.
Samsung Electronics 25
DB98_19047A(1)_1 4/21/04 2:27 PM Page 26
Troubleshooting
6-3-13 (N) Check of the heatsink temperature abnormal rise
√ If the air flow around the heatsink on the control box is not good, heatsink temperature will go up and the control box will have damage. So controller check the heatsink temperature and protect at the certain limit.
Possible troubles are fan motor trouble, fan motor drive circuit trouble and air flow blocking.
■
Condition of installation
■
• The ventilation is not good because the outdoor unit is installed wrong (the ambient temperature is higher than 50(˚C)).
■ •
→
Reinstall the outdoor unit so that the ventilation can be made.
■
• In case that the operation is made with the cover bent of the outdoor unit.
■ •
→
Take out the cover.
■
• If two outdoor unit are operating face to face,(the bad ventilation is made)
■ •
→
Reinstall the outdoor unit for the good ventilation.
■
• The air circulation is bad due to the attachment of falling leaves.
■ •
→
Take away the leaves for the good ventilation.
■
• If the refrigerant is insufficient.
■ •
→
Fill up the amount of refrigerant.
■
Unit defect
■
• If the fan is locked with some object.
■ •
→
Remove the object.
■
• If the comp is operating without the revolution of fan motor.
■ •
→
Take out the protection cover
■
•
→
Check the fan motor connector(CN54), running capacitor, relay(RY503) and replace the fan motor.
6-3-14 (O) Check BLDC compressor starting error
√ If the compressor have some trouble inside like locking or gas pressure of suction and discharge pipe is not balanced,
Inverter system will give up compressor rotation control to protect itself from overcurrent.
√ In case of compressor rotation starting trouble without overcurrent condition, controller detect the compressor rotation error and stop.
√ • Compressor wire connection is not good.
√ •
→
Check Compressor TAB terminal connection of the wire and connector to control box.
√ • Gas pressure balance is not good at stop condition.
√ •
→
Check service valve open.
√ •
→
Check EEV motor attachment and connector.
√ • Compressor is locked or have some mechanical damage.
√ •
→
Replace the compressor.
26 Samsung Electronics
DB98_19047A(1)_1 4/21/04 2:27 PM Page 27
6-3-15 (P) Check no gas error
Charge standard amount of refrigerant.
6-3-16 (Q) Check of 4-Way valve
Check whether the wires of 4-Way valve and control board of outdoor units correct.
If it is normal, replace 4-Way valve.
6-3-17 (R) Check of outdoor unit fan motor (SH12BWHX only)
Check whether the wire of fan motor is connected to the control board (CN01) of outdoor unit.
Check the voltage on the control board of outdoor unit and if it is same as follows, replace fan motor.
Input power AC178V~AC264V.
→
CN01 1-3pin : DC250V±10% ~ DC370V±10%
→
CN01 4-3pin : DC15V
Troubleshooting
Samsung Electronics 27
DB98_19047A(1)_1 4/21/04 2:27 PM Page 28
6-4 Fault Diagnosis of Major Parts
Part
• Indoor "Temp.Sensor"
• Indoor "Heat ex. Sensor"
• Outdoor "Temp.Sensor"
• Outdoor "Deice Temp. Sensor"
• Outdoor "Discharge
Temp.Sensor"
• Outdoor "OLP Temp.Sensor"
Indoor Fan Motor
Outdoor Fan Motor
Stepping Motor
Diagnosis
Measure resistance with a tester.
Normal
Ambient temperature
Resistance of thermistor[K
Ω
]
Abnormal
Normal
∞
, 0
Ω
… open or short
Ambient temperature
Resistance of thermistor[K
Ω
]
15°C
14.68
20°C
12.09
25°C
10
0°C
553
10°C
362
20°C
242
30°C
8.31
35°C
6.94
40°C
5.83
30°C
166
40°C
165
50°C
82
Abnormal
∞
, 0
Ω
… open or short
Measure the resistance between terminals of the connector(CN72) with a tester.
Normal At the normal temperature (10°C ~ 30°C)
Compare terminal
Yellow, Blue
Yellow, Red
Resistance(
Ω
)
460
Ω
±10
314
Ω
±10%
Remark
Main
Sub
Abnormal
∞
, … open or short
Measure the voltage between motor wires with a tester.
Normal At the normal temperature (10˚C ~ 30˚C)
✳ SH09BWHX only (AC Motor)
Compare terminal
Black, Red
Black, Yellow
Resistance(
Ω
)
255
Ω
±10%
415
Ω
±10%
Remark
Main
Sub
Abnormal
∞
, … open or short
Measure the resistance between the red wire and each terminal wire with a tester.
Normal
Abnormal
About 300
Ω at the normal temperature (20˚C ~ 30˚C)
∞
, … open or short
28 Samsung Electronics
DB98_19047A(1)_1 4/21/04 2:27 PM Page 29
M E M O
Samsung Electronics 29
DB98_19047A(1)_2 4/21/04 2:27 PM Page 30
7. Exploded Views and Parts List
7-1 Indoor Unit
2
6
7
1
1-7
1-8
1-5
1-2
1-1
1-3
1-6
1-4
4 9
2-1
2-3
2-2
5
5-4
5-1
5-2 5-3
3
3-6
3-4
3-8
3-1
3-2
3-3
3-5
3-8-1
3-7
8
30
You can search for the updated part code number through the ITSELF.
URL : http://itself.sec.samsung.co.kr
Samsung Electronics
DB98_19047A(1)_2 4/21/04 2:27 PM Page 31
Exploded Views and Parts List
■ Parts List
No.
Code No.
Description Specification
1-4
1-5
1-6
1-7
1
1-1
1-2
1-3
DB94-00454B
DB61-01632A
DB69-00834A
DB61-01634A
DB31-00219A
DB94-00456A
DB97-02075A
DB73-00181A
1-8
2
2-1
2-2
DB94-40007A
DB96-03112A
DB63-00850A
DB60-00118A
2-3 DB96-03060A
3 DB94-00457D
3-1
3-2
DB63-00848A
DB61-01635A
ASS'Y-BACK BODY
BACK-BODY
CUSHION-BACK BODY
SUPPORTER-EVAP RH
MOTOR-IN
ASS'Y-CROSS FAN
ASS'Y-BOLT SPECIAL
RUBBER-BEARING
MOLD-BEARING
ASS'Y CYCLE IN
COVER-BEARING
SPACE-EVAP LOW
ASS'Y-EVAP
ASS'Y-TRAY DRAIN
TRAY-DRAIN
BLADE-H
3-7
3-8
3-8-1
4
3-3
3-4
3-5
3-6
DB61-01636A
DB63-00849A
DB69-00839A
DB73-00180A
DB95-20138A
DB94-00458B
DB61-01715A
DB93-02755A
BLADE-V
TRAY-STABILIZER
CUSHION EPS-TRAY-RH
RUBBER-CAP DRAIN
ASS'Y-MOTOR STEPPING
ASS'Y DRAIN-HOSE
CLIP TERMINAL-HOSE
ASS'Y CONTROL-IN
5 DB92-00686B ASS'Y PANEL FRONT ASS'Y
5-1 DB64-00989B PANEL FRONT PS
5-2 DB64-00990B GRILLE AIR INLET HIPS
5-3 DB97-02064A ASS'Y COVER-DISPLAY ASS'Y
7
8
5-4 DB63-00846B GUARD-AIR FILTER PP
6 DB70-00406A PLATE-HANGER SGCC-M
DB61-01638A
DB63-00844A
HOLDER-PIPE
COVER TERMINAL
PS
ABS-V0
9 DB93-03012F ASS'Y REMOCON ARH-1402
PP
ABS
EPS30
GUM-EPM
PM24-600g, 24BYJ48
ASS'Y
STS, PI1.0
ASS'Y
BEARING
ASS'Y
ABS
PVC
1.3S, 2x14
ASS'Y
ABS
HIPS
ASS'Y
HIPS
EPS
HIPS
YDK-016S1408-01
OD92x635
ASS'Y
RUBBER
Q'TY
SH09BWHA SH12BWHA
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Remark
Refer to page 34
Samsung Electronics 31
DB98_19047A(1)_2 4/21/04 2:27 PM Page 32
7-2 Outdoor Unit
22
32
3-1
3-2
3
17
16
13
12
10
11
6
26
9
7
8
25
20
21
18
23
24
5
19
1
2
4
14
15
Samsung Electronics
DB98_19047A(1)_2 4/21/04 2:27 PM Page 33
Exploded Views and Parts List
12
13
14
15
16
17
22
23
24
25
26
18
19
20
21
5
6
3-2
4
3
3-1
1
2
9
10
7
8
11
■ Parts List
No.
Code No.
Description
DB97-02225A
DB31-00220A
DB31-00238A
DB67-00397A
DB60-30004A
DB63-00763A
DB60-30028A
DB96-03602A
DB93-02740 C
DB93-02740 D
DB63-01043A
G4C090LU1ER
DB90-01581A
DB63-00847A
DB90-01332A
DB64-01094A
DB64-00992A
DB90-01546A
DB63-00843A
DB90-01330F
DB99-00401B
DB94-00584 B
DB61-01644A
DB99-00481 B
DB 97-02490B
DB71-00090E
DB32-00083C
DB32-00121A
DB33-00021A
3301-001738
ASS'Y-CABI FRONT
GUARD FAN
ASS'Y-CABI SIDE LF
CABINET-SIDE LF COATING
HANDLE-LF
ASS'Y-CABI SIDE RH
COVER-VALVE
ASS'Y BASE-OUTDOOR
ASS'Y VALVE-BRACKET
ASS'Y PARTITION
BRACKET MOTOR
ASS'Y SUPPORT-PLATE B/M
MOTOR FAN
MOTOR FAN
FAN-PROPELLER
NUT-FLANGE
GROMMET ISOLATOR
NUT-WASHER
ASS'Y COND
ASS'Y CONTROL OUT
ASS'Y CONTROL OUT
FELT COMP SIDE
COMPRESSOR
ASS'Y VALVE 4WAY
ASS'Y VALVE EEV
BAR-STEEL
ASS'Y THERMISTOR OUT
ASS'Y THERMISTOR OLP/SUC
SOLENOID-REACTOR
CORE-FERRITE
NR
ASS'Y
SH12B PHX
SH09B PHX
FELT
G4C090LU1ER
ASS'Y
ASS'Y
ASS'Y
ASS'Y
ASS'Y
12A, 21mH
ASS'Y
Specification
ASS'Y
PP
ASS'Y
SC-90073T
PP
ASS'Y
PP
ASS'Y
ASS'Y
ASS'Y
SGCC-M
YDK-020S62213-03
SIC-52FV-D828-1
SH09BWHAX
Q'TY
SH12BWHAX
1
1
1
1
1
0
1
1
1
1
-
1
3
3
1
1
1
-
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-
1
1
1
3
3
1
1
-
1
1
1
1
1
1
1
1
1
1
1
1
1
Samsung Electronics 33
DB98_19047A(1)_2 4/21/04 2:27 PM Page 34
7-3 Ass'y-Control In(Code No : DB93-02755A)
■ Parts List
No.
Code No.
14
15
16
17
19
9
10
11
12
13
6
7
4
5
8
1
2
3
DB61-01637A
DB93-02754A
DB65-00149B
DB93-02483A
DB61-01639A
DB61-00171A
6001-000929
6001-000725
6001-001054
DB39-00949A
DB39-00147A
DB32-00020D
DB63-00851A
DB93-01549C
DB39-00183A
2301-001339
DB39-00148A
6009-001001
Description
CASE-CONTROL
ASS'Y-PCB IN
ASS'Y-TERMINAL BLOCK
ASS'Y-PCB SUB
PLATE-CONTROL
HOLDER-WIRE CLAMP
SCREW-MACHINE
SCREW-MACHINE
SCREW-MACHINE
CONNECT WIRE-SUB
C/W STEP MOTOR UP/DOWN
ASS'Y-THERMISTOR
COVER CLAMP
POWER CORD
C/W MF CAPACITOR
RUN CAPACITOR
PLATE-EARTH WIRE
SCREW-SPECIAL
34
Specification
ABS
ASS'Y
ASS'Y
ASS'Y
SGCC-M, T1.2
ABS
PH M3xL22
TH M4xL16
TH M4xL10
ASS'Y
ASS'Y
4P(103AT)
HIPS
250V 15A
22AWG
1.2µF/450V
UL 1015 AWG #16 YEL/GRN 200mm
TH M4XL8
Q'TY
1
1
1
1
3
1
1
1
1
1
1
1
1
1
3
1
1
1
Remark
SNA
SNA
SNA
SNA
Samsung Electronics
DB98_19047A(1)_2 4/21/04 2:27 PM Page 35
M E M O
Samsung Electronics 35
DB98_19047A(1)_2 4/21/04 2:27 PM Page 36
7-4 Ass'y Control Out
■ SH09BWHX : DB93-02740B
■
SH12BWHX : DB93-02740A
36 Samsung Electronics
DB98_19047A(1)_2 4/21/04 2:27 PM Page 37
Exploded Views and Parts List
16
17
18
19
12
13
14
15
10
11
8
9
6
7
4
5
20
21
22
23
24
25
■ Parts List
No.
Code No.
1
2
3
Description
DB93-01627A
DB62-02749A
DB93-02741A
DB93-02741B
6006-001051
6006-000160
6002-000630
DB61-01628A
DB39-00608E
DB39-00607B
DB39-01003A
-
-
DB93-02775A
DB39-00649C
-
DB65-00086A
DB61-00250A
DB70-00465A
6003-000325
6005-000643
6002-000171
-
DB93-00936A
-
DB62-02541L
CASE CONTROL BASE
HEAT SINK MAIN
ASS'Y PCB OUT
ASS'Y PCB OUT
SCREW-MACHINE
SCREW-MACHINE
SCREW-TAPPING
CASE CONTROL COVER
CONNECTOR WIRE COMP
CONNECTOR WIRE REACTOR
-
CONNECTOR WIRE FAN
-
ASS'Y L/W POWER
CONNECTOR WIRE 4 WAY V/V
INSULATOR-MICA
ASS'Y TERMINAL BLOCK 3P
HOLDER WIRE
PLATE-CASE CONTROL
SCREW-TAPPING
SCREW-TAPPING
SCREW-TAPPING
FOAMLEX
RUN CAPACITOR
SCREW-TAPPING
SEAL CASE CONTROL BASE
Specification
-
ABS 5V
ASS'Y
ASS'Y
M4xL16 WSP PH+
M3xL16 WSP PH+
PH,+,2S,M3,L8
RESIN-ABS
UL1015 AWG#16
UL1015 AWG#16
-
UL1007 AWG#20
-
UL1015 AWG#16
-
UL1015 AWG#18
3P
PP
SGCC-MTO.6
PH,+,2,M3,L20
TH,+,1,M4,L10
PH,+,2S,M4,L10
60x180xT2.0
1.7µF/450V
M3x14 WSP PH+
70x15xT10
SH09BWHX
Q'TY
SH12BWHX
1
1
-
1
1
-
1
1
1
1
5
2
-
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
-
1
-
-
1
1
1
1
5
2
1
-
1
1
1
-
2
1
-
1
1
1
1
1
Samsung Electronics 37
DB98_19047A(1)_2 4/21/04 2:27 PM Page 38
8. Block Diagram
REMOTE CONTROL
POWER ON/OFF
MODE
(AUTO, COOL, DRY,
FAN, HEAT)
TURBO OPERATION
1HR TIMER
FAN SPEED SELECT
(H/M/L)
FLAP
ON, OFF TIMER
SELECT
TEMPERATURE
SELECT
SLEEP SELECT
ENERGY SAVING
BATTERY CHECK
HEAT EXCHANGER SENSOR
ROOM TEMPERATURE SENSOR
INFRARED SIGNAL
RESET
CIRCUIT
CONTROLLER
IC-MCU
• BLADE CONTROL
• INDOOR FAN MOTOR CONTROL
• COMPRESSOR CONTROL
• TEMPERATURE CONTROL
• TIMER
• BUZZER CONTROL
• OUTDOOR FAN MOTOR CONTROL
• 4-WAY VALVE CONTROL
OSCILLATION
CIRCUIT
• COMPRESSOR CONTROL
SIGNAL
• STEPPING MOTOR
CONTROL SIGNAL
• BUZZER CONTROL SIGNAL
• OUTDOOR FAN MOTOR
CONTROL SIGNAL
• 4-WAY VALVE CONTROL
SIGNAL
TRIGGER
SIGNAL
SSR
ZERO
VOLTAGE
DETECT
• COMPRESSOR DRIVE
• OUTDOOR FAN MOTOR
DRIVE
• STEPPING MOTOR DRIVE
• BUZZER DRIVE
• 4-WAY VALVE DRIVE
BUZZER
DC 5V
VOLTAGE REGULATOR
DC 12V
SMPS POWER BLOCK
DISPLAY PART
OPERATION
TIMER
TURBO
INDOOR FAN MOTOR
COMPRESSOR
OUTDOOR FAN MOTOR
4-WAY VALVE
STEPPING MOTOR
: BLADE UP/DOWN
AC INPUT
38 Samsung Electronics
DB98_19047A(1)_2 4/21/04 2:27 PM Page 39
9. PCB Diagram
9-1 Ass'y PCB Indoor Unit : DB93-02754A
■ TOP
Samsung Electronics 39
DB98_19047A(1)_2 4/21/04 2:27 PM Page 40
PCB Diagram
■ BOTTOM
40 Samsung Electronics
DB98_19047A(1)_2 4/21/04 2:27 PM Page 41
■ Parts List
Location No.
BD71
BZ61
C001
C101
C102
C104
C107
CN44
CN61
CN71
CN72
CN73
CN81
CN82
CN91
D101
D102
C203,C202,C401,C801,C302,C705,C303
C204,C803,C402,C201,C403,C106,C105
C103,C503,C505,C506,C504,C501
C601
C701
C702
C704,C703
C802,C301,C706
CD01
CN22
CN43
FT71
IC01
IC02
IC03
IC04
D103
D104
D703,D702,D701
DSA1
F701
Description
DIODE-BRIDGE
BUZZER-PIEZO
C-CERAMIC
C-AL
C-AL
C-AL
C-AL
C-CER,CHIP
C-CER,CHIP
C-AL
C-AL
C-FILM
C-AL
C-CER,CHIP
DIODE-TVS
CONNECTOR-HEADER
CONNECTOR-HEADER
CONNECTOR-HEADER
CONNECTOR-HEADER
CONNECTOR-HEADER
CONNECTOR-HEADER
CONNECTOR-HEADER
CONNECTOR-HEADER
CONNECTOR-HEADER
CONNECTOR-HEADER
DIODE-ZENER
DIODE-RECTIFIER
DIODE-ZENER
DIODE-RECTIFIER
DIODE-RECTIFIER
SURGE-ABSORBER
FUSE-BLOCK
LINE FILTER
IC-POWER TRANSFORMER
IC-POSI.FIXED REG
IC-VOLTAGE COMP.
IC-MICOM
Specification
DF06S,600V/1A
CBE2220BPC,85dB
102,2KV
10uF,450V
470uF,25V
470uF,16V
2.2nF,400V
10nF,50V,2012
100nF,50V,2012
47uF,50V
470uF,50V
10nF,630V
4.7nF,100V
1nF,50V,2012
ST02D-200,215V/200W
SMW200-03,RED
SMW200-04,NTR
SMAW250-03,BLU
SMAW200-05,NTR
YW396-03AV,BLU
YW396-03AV,WHT
YW396-05AV,WHT
SMW200-10,NTR
SMW200-02,WHT
SMAW200-08,NTR
BZX84C3V6,3.6V/350mW
UG2D,200V/2A
BZX84-C11,11V/350mW
UF4007,1KV/1A
MRA4005,600V/1A
DSA-332mA
250V,3.15A,FAST-ACTING
USAV-07153,15.0mH
TNY255P,8P/DIP
78L05A,TO-92
KA7533,TO-92
MB90F462PF,STM-0266OC
Samsung Electronics
PCB Diagram
Q'TY
1
1
1
7
13
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
41
DB98_19047A(1)_2 4/21/04 2:27 PM Page 42
PCB Diagram
■ Parts List (cont.)
Location No.
IC06,IC05
IC07
NTC1
PC01
PC02
PC31,PC32
Q201,Q603,Q601,Q401
Q302,Q301
Q602
R105
R106
R205,R206,R207,R208,R201
R202,R203,R204
R301
R302
R303
R402
R403,R401,R607,R604,R602
R802,R210,R211,R212
R404,R405
R407,R406
R501,R502
R609,R608,R101
R610
R702,R701
R704,R703
R706
R707
R803,R606
R804,R209,R603,R601,R605,R801
RY71
SS71
ST11
VA71,VA73,VA72
X501
XC72,XC71
ZD71
Description
TR-ARRAY
IC-EEPROM
THERMISTOR-NTC
PHOTO-COUPLER
PHOTO-COUPLER
PHOTO-COUPLER
TR-SMALL SIGNAL
TR-DIGITAL
TR-DIGITAL
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-METAL OXIDE
R-METAL OXIDE
R-CHIP
R-CHIP
R-CHIP
R-CHIP
RELAY-POWER
SSR
TRANS SWITCHING
VARISTOR
RESONATOR-CERAMIC
C-FILM,MPPF
DIODE-ZENER
Specification
ULN2003D013TR,1W
93LC56,128x16Bit
NTC-22ohm,1.4A/3100K
PC817X2,130-260%
PC814X1,50-150%
TLP181-GRH,150-300%
2SC2412K,200mW
DTC114EKA,200mW
MMST2907A,200mW
100-J,1/10W,2012
220-J,1/8W,2012
47K-J,1/4W,3216
1K-J,1/10W,1608
470-J,1/10W,1608
8.2K-F,1/10W,1608
6.8K-J,1/8W,2012
1K-J,1/8W,2012
330-J,1/8W,2012
6.8K-F,1/8W,2012
120-J,1/8W,2012
470-J,1/8W,2012
560-J,1/8W,2012
47K-J,3W
4.7K-J,2W
100K-J,1/8W,2012
680-J,1/8W,2012
4.7K-J,1/8W,2012
10K-J,1/8W,2012
UKH-12S,12Vdc/20A
AQG22212,12Vdc/2A
EI1916-048
INR14D561K-RS,560V,2500A
4MHz
100nF,275V
1N4749A,24V/1W
42
1
1
1
2
6
2
1
3
1
2
3
1
2
2
2
2
1
1
1
1
9
1
1
Q'TY
1
1
2
1
1
2
4
1
1
2
1
8
Samsung Electronics
DB98_19047A(1)_2 4/21/04 2:27 PM Page 43
9-2 Ass'y PCB Outdoor Unit : DB93-02741B(9K) / DB93-02741A(12K)
■ TOP
Samsung Electronics 43
DB98_19047A(1)_2 4/21/04 2:27 PM Page 44
PCB Diagram
■ Parts List
Location No.
D201
D401,D402,D403
DSA
FT01
FT00
FUSE
IC01
IC11
IC17
IC18
IC19
IC21,IC32
IC701
IC73
D102
BD01
C011,C010
C003,C004
C01
C101,C102,C103
C104,C105,C304
C123
C201,C437,C117,C508
C301
C303,C308
C402,C404,C406,C407
C409,C410,C411
C416,C905
C418
C464,C466,C108,C109,C110
C509
C520,C516,C506,C507,C513,C514,C202
C518,C551,C413,C414,C415,C412
C521,C305,C306,C302,C307
C653
C702
C902
CN01
CN04
CN52,CN51
CN53
CN701
D101
C-CER,CHIP
C-CERAMIC
C-AL
C-AL
CONNECTOR-HEADER
CONNECTOR-HEADER
CONNECTOR-HEADER
CONNECTOR-HEADER
CONNECTOR-HEADER
DUAL-DIODE
DIODE-RECTIFIER
DIODE-RECTIFIER
SURGE-ABSORBER
SS2915044B
SS2915025B
FUSE
IC-MICOM
IC-PWM CONTROLLER
IC-POSI.FIXED REG
IC-POSI.FIXED REG
IC-POSI.FIXED REG
PHOTO-COUPLER
IC-EEPROM
IC-POSI.ADJUST REG
Description
DIODE
DIODE-BRIDGE
C-CERAMIC
C-CERAMIC
C-CERAMIC
C-AL
C-CERAMIC
C-AL
C-AL
C-FILM
C-CER,CHIP
C-CER,CHIP
C-AL
C-AL
C-FILM
C-AL
C-CER,CHIP
C-CER,CHIP
44
10nF,50V,1608
10nF,25V
100uF,16V
10uF,50V
YAW396-07V,WHT
YAW396-03AV,BLU
SMAW250-04,WHT
SMAW250-06,WHT
SMW200-04,NTR
FEP30JP
US1G,400V
1N4937,600V,1A
DSA332M
SS2915044B
SS2915025B
65TS-150-H,250V,20A
ML66Q517
TOP222P,8P/DIP
KA7805A,TO-220
KA7815
KA7812A,TO-220
TLP181-GRH,150-300%
93LC56,128x16Bit
TL431,8P/SMD
1N4937,600V/1A
GSIB2560
103,2KV
0.33uF,275V
684,275V
560uF,400V
222,2KV
10uF,450V
47uF,35V
10nF,100V
1nF,50V,1608
470pF,1608
47uF,50V
220uF,50V
100nF,630V
220uF,25V
47nF,50V,2012
100nF,25V,1608
Specification Q'TY
3
1
4
1
3
2
2
1
1
4
3
1
2
2
1
5
1
13
1
1
1
3
1
1
1
1
2
1
1
5
1
1
1
1
1
1
1
1
1
2
1
1
Samsung Electronics
DB98_19047A(1)_2 4/21/04 2:27 PM Page 45
■ Parts List (cont.)
Location No.
IPM
LED1
LED2
LED3
PT02
PTC1
Q202,Q302,Q301,Q905,Q907,Q902
Q803
Q901,Q903,Q904,Q906
R001
R101
R102
R115
R201
R202
R204,R515
R301,R307
R303,R304
R305,R404,R403,R402,R401,R406,R415
R306
R418
R425,R423,R421
R459
R460
R507,R508
R510,R511,R509
R512
R513,R514,R529,R528,R527,R526,R530
R531,R525,R524,R522,R521,R533,R534
R535
R536
R537,R538
R801
R812,R506,R517,R505,R553
RY01
RY502,RY501
VA07,VA08,VA09,VA03,VA04
XTAL01
ZD21
ZD23,ZD22
ZD31
Description
IPM
LED
LED
LED
PULSE TRANS
PTC
TR-DIGITAL
IGBT-SGL
TR-DIGITAL
R-CEMENT
R-METAL OXIDE(S)
R-CHIP
R-CHIP
R-METAL OXIDE
R-METAL OXIDE
R-CHIP
R-METAL OXIDE(S)
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CEMENT
R-CHIP
RELAY-POWER
RELAY-MINIATURE
VARISTOR
RESONATOR-CERAMIC
DIODE-ZENER
DIODE-ZENER
DIODE-ZENER
Specification
FSAM15SM60A,*
3mm/2.54,RED
3mm/2.54,GRN
3mm/2.54,YEL
PT_30AM,*
PTC,27R
KRC102S,*
IRG4BC30F,*
KRA102S,SOT-23
200-J,5W
47K-J,3W
6.8-F,1/10W,2012
14.3K-F,1/4W,3216
47K-J,2W
100K-J,2W
20K-J,1/8W,1608
4.7K-J,2W
470-J,1/10W,1608
4.7K-J,1/12W,1608
560-J,1/12W,1608
0.02R-J,7W
100-J,1/8W,1608
47K-J,1/8W,2012
20K-J,1/8W,2012
1K-F,1/12W,1608
100K-J,1/12W,1608
5.6K-J,1/12W,1608
10K-F,1/12W,1608
1M-J,1/10W,1608
10K-J,1/10W,1608
0.045-J,3W
330-J,1/12W,1608
UKH-12S,12Vdc/20A
FTR-F3AA012E,12Vdc/5A
INR14D561K-RS,560V,2500A
6.25MHz,*
1N4749A,24V/1W
MMBZ5232B,*
1N4751A,30V/1W
Samsung Electronics
PCB Diagram
Q'TY
2
3
1
1
1
15
7
1
1
3
2
2
1
1
1
1
1
1
2
6
1
4
1
1
1
1
1
1
1
2
5
1
1
1
5
1
2
1
2
45
DB98_19047A(1)_2 4/21/04 2:27 PM Page 46
PCB Diagram
■ BOTTOM
46 Samsung Electronics
DB98_19047A(1)_2 4/21/04 2:27 PM Page 47
■ Parts List
Location No.
C111,C801
C203,C421
C401,C403,C405,C517
C106,C118,C121,C122,C124,C408
C417,C423,C519,C802,C803
C451
C452
C453,C454,C462
C806
C900
C204,C455,C501,C502,C503,C804
C805,C807,C903,C904,C906,C907
D103,D104,D106
D202,D451
D301
IC02
IC15
IC31
IC451
IC55,IC56
IC74
IC83
Q201,Q802
Q801,Q804
R002,R003
R105
R110,R111,R451
R112,R113,R114
R203,R405,R461,R804
R407,R408,R409
R104,R106,R413
R414,R523,R532,R808,R810
R416
R419,R420,R422,R424
R426,R427,R428
R429
R430
R452
Samsung Electronics
Description
C-CER,CHIP
C-CER,CHIP
C-CER,CHIP
C-CER,CHIP
C-CERAMIC
C-CERAMIC
C-CER,CHIP
C-CER,CHIP
C-CER,CHIP
C-CER,CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
DIODE-RECTIFIER
DUAL-DIODE
DIODE
S80142
PHOTO-COUPLER
PHOTO-COUPLER
IC-OP AMP
TR-ARRAY
IC-LOGIC
LM324
TR-DIGITAL
TR-SMALL SIGNAL
R-CHIP
R-CHIP
R-CHIP
R-CHIP
1uF,2012
1nF,50V,2012
1.2nF,2012
100nF,50V,2012
Specification
33pF,25V
4.7nF,25V
2.2nF,2012
470pF,50V,2012
1uF,3225
10nF,50V,2012
ES1D,200V/1A
DCB010,*
ES1D,200V
S80142ANMC-JC3T2,*
TLP181,*
TLP181-GRH,150-300%
LA6393M,*
ULN2003AFW,1W
74HCT00D,SOP-14
LM324,*
KRC102S,*
BC847B,*
470K-F,1/2W,5025
6.8K-F,1/8W,2012
180K-F,6432/1W
470K-F,1/4W
4.7K-J,1/8W,2012
33-J,1/10W,2012
3.3K-J,1/8W,2012
10K-F,1/10W,2012
390-J,1/10W,2012
100-J,1/8W,2012
300K-F,1W,6432
1.6K-F,1/8W,2012
51-F,1/8W,2012
150K-F,1W,6432
PCB Diagram
2
1
3
3
1
1
1
2
2
2
1
1
1
1
3
2
3
5
1
4
3
1
1
4
3
1
1
1
3
1
1
12
Q'TY
4
11
2
2
47
DB98_19047A(1)_2 4/21/04 2:27 PM Page 48
PCB Diagram
■ Parts List (cont.)
Location No.
R453
R501,R504
R539,R540,R541
R502,R552
R554
R802
R803
R805
R302,R807
R103,R811,R813
R814
R806,R809,R901,R902,
R903,R904,R905,R908
R906
R907
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
R-CHIP
Description
R-CHIP
R-CHIP
2.7K-F,1/8W,2012
5.1K-F,1/8W,2012
2.2K-J,1/8W,2012
24K-F,1/8W,2012
470-J,1/8W,2012
220-J,1/8W,2012
2.2K-F,6432/1W
3.3K-F,1/8W,2012
1K-J,1/8W,2012
330-J,1/8W,2012
5.1K-J,1/8W,2012
10K-J,1/8W,2012
Specification
6.8K-J,1/8W,2012
560-J,1/8W,2012
Q'TY
3
2
1
2
1
1
1
3
1
1
2
8
1
1
48 Samsung Electronics
DB98_19047A(1)_2 4/21/04 2:27 PM Page 49
10. Wiring Diagram
10-1 Indoor Unit(9K / 12K)
Code No : DB98-16585A
Samsung Electronics
This Document can not be used without Samsung's authorization.
49
DB98_19047A(1)_2 4/21/04 2:27 PM Page 50
10-2 Outdoor Unit(9K / 12K)
50
Code No : DB98-17635A
This Document can not be used without Samsung's authorization.
Samsung Electronics
DB98_19047A(1)_2 4/21/04 2:27 PM Page 51
M E M O
Samsung Electronics 51
DB98_19047A(1)_2 4/21/04 2:27 PM Page 52
M E M O
52 Samsung Electronics
DB98_19047A(1)_co 4/21/04 2:26 PM Page 2
ELECTRONICS
This Service Manual is a property of Samsung Electronics Co., Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
© Samsung Electronics Co., Ltd. Nov. 2004.

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Key features
- Cooling and heating functions
- Multiple operating modes
- Automatic temperature control
- Turbo mode for faster cooling or heating
- Energy saving mode
- Sleep mode
- On/off timer
- Remote control
- Error mode display
- Detailed troubleshooting guide