Samsung B1445AVGW/YLW, B1245AVGW/YLW, B1045AGW/YLW Service Manual
WASHING MACHINE
CONTENTS
WASHING MACHINE
Caution for the safety during servicing
1. SPECIFICATIONS
2. SAFETY DEVICES
3. OVERVIEW OF THE WASHING MACHINE
4. OVERVIEW OF THE CONTROL PANEL
5. MAIN FUNCTION
6. TECHNICAL POINT
7. GENERAL ERROR FUNCTION
8. TROUBLE DIAGNOSIS
9. TEST MODE
10. DESIGNATION OF MAIN COMPONENTS
11. PCB SCHEMATIC DIAGRAM
11-1. PCB CIRCUIT DIAGRAM
12. SETTING UP A WASH MACHINE
13. ASSEMBLE AND DISASSEMBLE
14
. TOOLS FOR DISASSEMBLY AND ASSEMBLY
15. EXPLODED VIEW AND PARTS LIST
B1445AVGW/YLW
B1245AVGW/YLW
B1045AGW/YLW
SERVICE
Manual
1
CAUTION FOR THE SAFETY DURING SERVICING
1. Do not allow the customer to repair the product.
☞
The person may be injured or the product life may be shortened.
2. Execute A/S after unplugging the power supply unit.
☞
Be care of the electric shock.
3. Do not plug several plugs in the same outlet.
☞
It may cause the fire due to overheat.
4. Check the damage, pressing or burning of the power plug or outlet.
☞
Replace it promptly if it has problem.(may cause the electric shock or fire)
5. Do not clean the main body with the water.
☞
It may cause the electric shock and fire and shorten the product life
6. The wiring of the harness shall be free from the moisture and tightened during serving.
☞
It shall not be deviated by certain impact.
7. Remove any dust or filth on the housing section,wiring section,connection section during servicing.
☞
Protect the cause of the fire such as the tracking,and etc.
8. Check any mark of the moisture on the electrical parts, harness section and etc.
☞
Replace the parts or remove the moisture.
9. Check the assembly status of the parts after servicing.
☞
Maintain the status before servicing.
10. Pull out the power cord with holding the plug.
☞
Be care of the electric shock and f ire when the cord is damaged.
11. Unplug the power plug from the outlet when the wash machine is not used.
☞
Be care of the electric shock and fire due to the strike of the lightening.
12. Do not use or store the spray or flammable materials(including gasoline,alcohol and etc.)
around the wash machine.
☞
Be care of the explosion or fire due to the electric spark.
13. Do not put the bowl of water or wet laundry on the wash machine.
☞
If the water is penetrated to the wash machine, this may cause the electric shock or fire.
14. Do not install the wash machine in the place where the snow or rain falls.
☞
It may cause the electric shock and fire and shorten the product life.
15. Do not push the control buttons with the awl,pin, or sharp materials.
☞
It may the electric shock and trouble.
16. Check the wash machine is leveled horizontally and installed properly on the floor.
☞
The vibration may shorten the product life.
17. Joint the wire by the connector correctly.
☞
When the wire is jointed by the tape, this may cause the fire due to the tracking.
18.
When the wash machine is to be laid for the service, put the pad on the floor and lay the product at
side slowly.
☞
If the wash machine is laid front, the relay may be damaged by the tub.
19. When the wash-heater is replaced, check it is inserted in the bracket-heater and screw the nut.
☞
If the wash -is not inserted in the bracket-heater properly, this may cause the noise and
leakage since it is contacted to the drum.
2
1. SPECIFICATIONS
WASH TYPE
FRONT LOADING TYPE
DIMENSION
GROSS W 680mm X D 665mm X H 890mm
NET W 598mm X D 550mm X H 844mm
WATER PRESSURE
50 kPa ~ 800 kPa
WEIGHT
GROSS 78 kg
NET 75 kg
WASH and SPIN CAPACITY
6.0 kg (DRY LAUNDRY)
POWER CONSUMPTION
WASHING
220 V 180 W
240 V 180 W
WASHING and
HEATING
220 V 2000 W
240 V 2400 W
SPIN
MODEL B1445AV B1245AV B1045A
220-240V
550 W 500 W 500 W
PUMPING 34 W 34 W 34 W
WATER CONSUMPTION
54ℓ(STANDARD COURSE)
SPIN REVOLUTION
MODEL B1445AV B1245AV B1045A
rpm 1400 1200 1000
3
2. SAFETY DEVICES
※
We adapt 6 safety devices for users to use this wash machine safely.
1) Balancing device (ASSY-Main PCB)
→
When the laundry is out of balance, to prevent the noises and vibrations, the unbalance
detecting sensor helps the laundry laid even and continue the dehydrating process.
2) Door locking device (DOOR-LOCK S/W)
→
Door isn't open during operating
For safety. even after pause or finishing operating, the door of wash machine which uses the
button to open the ass'y door can be opened when the water level is over 24.8 kHz
(i.e anti-water flow level) and the temperature inside of tub is under 55℃.
3) Anti-over water supply device
→
Because water supply value is broken, once water is supplied to the 2/3 level of the door, the
water supplied is drained automatically, Over -flow error (OE) is displayed on the panel
4) Temperature-regulating device(thermistor)
→
To prevent over-heating over the temperature set up, THERMISTOR senses the temperature of
the machine continuously and helps the wash machine to work at the temperature given by users.
5) Overheating- controlling system
→
Under the circumstances of THERMISTOR inferiority or abnormal condition, if wash-heater is
overheated, automatically, ass'y -thermal fuse cuts off the power supply to protect the machine to
keep it safe.
6) Delicate clothing safeguard function(ASSY-Main PCB)
→
To protect the clothings which is weak to high temperature, the wash machine senses the
temperature inside the washing tub. if the temperature rises over 50℃wool washing course and
Delicate washing course display abnormal water temperature on the panel , after draining the
water.
4
3. OVERVIEW OF THE WASHING MACHINE
5
4. OVERVIEW OF THE CONTROL PANEL
1. Deterg ent disp enser
2. Disp lay pan el
Displays the remaining wash cycle time and error messages.
3. Silver Nano selection button
Silver Nano water is supplied in washing as well as the last rinse, featuring sterilization
and antibacterial coating.
4. Rinse selection button
Press the rinse button to add rinse cycles. Maximum number of rinse cycles is five.
1
2 3
4
5
6
7
8
9
10
5. Spin selection button
Press the button repeatedly to cycle through the available spin speed options.
B1445AV ,
, 400, 800, 1200, 1400 rpm
B1245AV ,
, 400, 800, 1000, 1200 rpm
B1045A ,
, 400, 600, 800, 1000 rpm
: no spin,
: rinse hold
No spin
The laundry remains in the drum without being spun after the final drain
Rinse Hold
The laundry remains soaking in the final rinse water.
Before the laundry can be unloaded, either “Drain” or the “Spin” program must be run.
6. Temperature selection button
Press the button repeatedly to cycle through the available water temperature options
(cold water( ), 30 C, 40 C , 60 C and 95 C).
7. Delay Start selection button
Press the button repeatedly to cycle through the available delayed start options (from 3
hour to 24 hours in one hour increments).
Displayed hours means the time of finished washing-cycle.
8. Fuzzy Control dial
Turn the dial to select one of the 14 available wash programs.
Cotton, Coloureds, Synthetics, Delicates, Wool, Hand wash, Quick,
Rinse+Spin, Spin, Drain, Baby Program(Stains, Delicates, Coloreds, Cotton)
9. Start/Pause selection button
Press to pause and restart programs.
10. (On/Off) selection button
Press once to turn the washing machine on, press again to turn the washing machine off.
If the washing machine power is left on for longer than 10 minutes without any buttons
being touched, the power automatically turns off.
6
5. MAIN FUNCTION
1) Auto power S/W off function
●
After power on, the auto power S/W off function automatically switches power off for you if you do not press
selection button for 10 minutes
●
After selecting the function, the auto power S/W off function automatically switches power off for you if you do
not press start/pause button for 10 minutes
●
until 5 minutes past, After finishing the last function, the auto power S/W off function automatically switches
power off for you if you do not re-select the course button or manual button
2) Door open function
●
Door just can be opened at water level 24.80 KHz over, water temperature 55
℃
below, motor off, if power
is off door is not opened (only auto-door model)
●
If door is open during the operating, all operating is halted, and door error message will be displayed (2-digit
panel displays "dE" 4-digit panel displays "door") and error melody will coming out
●
Door open error can be cleared by closing the door. the operating keeps going on
3) Rinse hold function
●
If rinse hold function selected, the operating is finished , the machine do not drain the water after last rinse
4) No spin function
●
If no spin function selected, the operating is finished after last rinse
5) Drain function
●
Drain function is over, after pumping out the water for 2 minutes , without motor rotating
6) Pre-washing function
●
Pre-washing function can be selected ,when you choice the following mode; cotton, coloreds, synthetics, delicates,
baby cotton, baby coloreds, baby delicates, baby stains
●
Water level/reverse time is the same with the selected course
●
Pre-washing takes about 16 minutes
7) Rinse+ function
●
This function practises rinse process once more
7
5. MAIN FUNCTION
8) Power-out compensation function
●
If power is out on selected process, the process before power out is stored to EEPROM, once power is back
the process before power out continues.
●
When power is back, washing process starts from the process at the point of the power out, rinse/drain process
starts from the initial process.
9) Water heater Error function
①
This function starts working, when the heater works abnormally.
(this function begins sensing the heater 2 minutes later, after the heater operating)
②
The value of the initial thermistor(A1) is compared with that of the thermistor(A2) in 2 minutes (Y=A2-A1)
- For 10 minute late, the variance of temperature(Y) is less than 2℃, "HE2"message is displayed on the panel.
③
The value of the initial thermistor(A1) is compared with that of the thermistor(A2) in 11 minutes (Y=A2-A1)
- For 1 minute the variance of temperature(Y) increases more than 40℃, "HE1"message is displayed on the
panel.
④
At this time heater, Error "HE2 (heater do not work), HE(overheated)" is displayed and all working process off
⑤
The heater operating continues during heating hours, if washing hour is left over, the residual washing process
keeps going without heating.
POWER-OUT COMPENSATION FUNCTION PROCESS
WASHINGSTART
RINSE/DRAIN
PROCESS
RINSE/DRAIN
START
FINISH
POWER OUT
POWER BACK
SAVE DATA
to EEPROM
SAVE DATA
to EEPROM
READ DATA
(PROCESS+TIME)
MICOM RESTORE
MICOM RESTORE
RESTART
PROCESS
POWER OUT
POWER BACK
8
5. MAIN FUNCTION
10) Fuzzy washing function (weight-sensing)
☞
After finishing initial water supply, when the fall of the water level needs supplementary water supply,
Sensing function perceives the weight with the supplementary water supply numbers and starts to work.
Under the course of Cotton, or Coloureds, if the supplementary water supply numbers become over 2 times
the function is going at default condition ( high water level ), if 1 time that is going at middle level, if 0
below low water level, heating hours and rinse hours depend on the above data.
ECO PRE mode is selected, the process going on at default condition.
※
After sensing weight, above hours is decreased from above default hours
11) Bubble - detecting function
At the each condition of washing&dehydrating , rinse&dehydrating , hydrating, bubble -detecting function works,
this function works 5times normally, if the function detects bubbles at 6 times , the bubble-detecting function
stops and go on to the next process.
●
The bubble-detecting function during washing & dehydrating to rinse & dehydrating
after 2 times instant dehydrating and before main dehydrating, if the water level is under 24.50KHZ, Bubble
→
Detecting function thinks there are bubbles and add the bubbles-removing rinse, needing hours are above
hours and 8 Min 40 sec.
→
The bubble-detecting function during single hydrating process
after 2 times instant dehydrating and before main dehydrating , if the water level is 24.50KHZ below or
during main dehydrating, water level data is 24.50KHZ below Bubble-detecting function thinks there are
bubbles and add the bubbles-removing rinse 1 times, needing hours are above hours and 5 min 50 sec.
Washing hours
Rinse water level
Cotton Coloureds
High Default Default Default
Middle Default-20 min Default-10min 23.80KHZ
Low Default-30 min Default-15min 24.10KHZ
draining &reverse
50 sec
unbalance
detecting range
18 sec
laundry scattering
bubble detection
(default water level 24.50KHZ below)
220rpm
Bubble-detecting function operating process
500rpm
9
5. MAIN FUNCTION
12) Unbalance detecting & laundry balance positioning system
①
Just before the hydrating process and just after reversal rotation for balancing laundry position, this function is
carried out
②
The initial 6 sec is the period of reversal rotation for balancing laundry position , Drum rotates 50rpm for
initial 6 sec
③
Next 12 sec, the rotation increases the speed from 50 rpm to 95 rpm slowly
④
During the next 8 sec, drum rotates at the speed of 95 rpm, the sensor decides the degree of laundry
unbalance with TACHO data which is attached to motor
⑤
If the degree of unbalanced laundry is over 6 times to default value, laundry balancing system carryies out
feed back process 3 times
13) R.P.M control
The rotating motor enables the magnetics( i.e generator) to generate magnetic flux in proportion to r.p.m,
magnetic flux induced by coil sensor in the opposite side produces the wave like the figure below to dΦ/dt and
via rectangular wave generating circuit, the waves reaches MICOM and micom controls r.p.m with the pulse,
count and cycle inputted by program.
<COILelectricalwaveatbothends>
V(VOLT)
Vp
T (HOUR)
unbalance
detecting range
20 sec
laundry scattering
210rpm
Unbalance detectin g & laund ry balanc e pos itio nin g sys tem
490rpm
500rpm
220rpm
95rpm
10
6. TECHNICAL POINT
1) Motor on/off time at each course
2) Final dehydrating r.p.m at each course
※
You can change the r.p.m to the above a table by use spin button under no spin situation.
Course
Washing
Motor r.p.m
Cw Off Ccw Off
Cotton
13 4 13 4 52
Coloureds
12 8 12 8 50
Synthetics
7 8 7 8 40
Delicates
5 10 5 10 40
Wool
2 48 2 48 50
Handwash
2 58 2 58 50
Quick
12 8 12 8 50
Pre
10 10 10 10 50
B-Cotton 8
12 8 12 45
B-Coloureds
10 10 10 10 45
B-Delicates
5 10 5 10 40
B-Stain
10 10 10 10 45
unit:sec
unit:rpm
Model
Course
B1445AV B1245AV B1045A
Baby Cotton
1400 1200 1000
Cotton
1400 1200 1000
Coloureds
1400 1200 1000
Synthetics
800 800 800
Delicates
800 800 600
Wools
400 400 400
Quick
1400 1200 1000
Handwash
400 400 400
B-Cotton
1400 1200 1000
B-Coloureds
1400 1200 1000
B-Delicates
800 800 600
B-Stains
1400 1200 1000
11
6. TECHNICAL POINT
3) The water supply control at each process cycle
4) The water level data at each course
Water level
Course
Default water level
(kHz)
Supplementary water
START (kHz)
Supplementary water
End (kHz)
Cotton
Washing
24.25 24.90 23.60
Rinse
23.60 25.00 24.60
Coloureds
Washing
24.25 24.90 23.60
Rinse
23.60 25.00 24.60
Synthetics
Washing
24.40 25.00 24.75
Rinse
23.60 25.00 24.60
Delicates
Washing
23.80 24.55 24.30
Rinse
23.65 24.55 24.30
Wools /
Handwash
Washing
23.45 24.35 24.00
Rinse
23.15 24.35 24.00
Quick
Washing
24.40 25.00 24.70
Rinse
23.80 25.00 24.70
B-Cotton
B-Coloureds
Washing
24.25 24.90 23.60
Rinse
23.50 25.00 24.60
B-Delicates
Washing
24.25 24.90 24.60
Rinse
23.50 25.00 24.60
B-Stains
Washing
24.25 24.90 24.60
Rinse
23.50 25.00 24.60
unit:Khz
Model
Process cycle
B1445AV,B1245AV,B1045
Pre Washing
Cold water 5L/min
Washing
Cold water 10L/min + (Hot water 10L/min)
Rinse
Cold water 10L/min
Final rinse
Cold water 10L/min + Cold water 5L/min
12
6. TECHNICAL POINT
5) The other water level data
※
If water level is 15KHZ below or 30 KHZ above , Sensor-pressur is out of order so needs changing.
The water data unter each conditon
B1445AV , B1245AV, B1045A
1st water supply (only preparation)
25.50 1st water supply level to washing tub
Overflow error
21.50 The water supplied reach 2/3 of door
Bubble
detectingatwashing/rinse/dehydrating
24.50 Bubble -detecting water level
Bubble detecting rinse water level
23.00 The water level which can detect bubbles
Water level which can open door
24.80 over It is possible to open the door
Water level which can drive heater
25.50 Safety water level of wash heater
Water level which can reset the drain
25.50 The water level can be detected after 1st draining
unit:Khz
13
7. General Error Function
1.
An occurrence of an Error will make a sound of error melody for 5sec and continuously show one of the Error
Displays from the following errors. (But, Fault Check Led will flash for 0.5sec.)
2.
All of the steering parts will be off at that time until that error was released.
3. Water Supply Error
- If there is no higher change in water frequency than 100Hz for 2 minutes during the initial time of water supply
and if water level doesn't reach the preset level in 10 minutes, this error will occur.
This error will be released using Start/Pause button, which performs the initial condition of operation.
-Display:
“4E”
4. Water Drain Error
- If water level frequency is still lower than the reset level frequency (25.20kHz) in 10 minutes after starting of
water drain, this error will occur.
This error will be released using Start/Pause button, which performs the initial condition of operation.
-Display:
“5E”
5. Over Flow Error
- If an abnormal water level frequency is sensed (for occurrence of Over Flow :21.00kHz), Auto Power Off may
release this error and continuously progress water drain until the frequency reached 25.00kHz.
- If Over Flow is also sensed even after the following check of water level frequency indicating that error, it
functions to progress water drain.
-Display
:“OE
”
6. Door Open Error
- This error will be released by closing Door.
-Display:
"dE
"
7. Unbalance Error
- This error will be released by pressing start/pause S/W.
- DISPLAY :
“UE”
8. Water Heater Error
- This error will be released by turning off Power S/W.
-Display:
“
HE1"(Over Heat),
-Display
: "HE2", indicating no operation of HE.
9. Pressure S/W (Single Part Trouble) Error
※
Frequency signals(kHz) generated by water level S/W
- If the above frequency signals are displayed longer than 5sec, it indicates Pressure S/W Error.
- Drain water for 3 minutes for that Error, and turn OFF water drain pump. Pressure S/W Error
display
“
IE
"willbeshown..
10. Abnormal Water Temperature ERROR
- Water drain begins if abnormal water temperature is sensed at the initial time of water supply. If the frequency
higher than 25.20KHz is sensed, water will be drained by force.
-Display
:"CE"
- This error will be released by turning off Power S/W.
Water Level
Low High
Abnormal Frequency 30.00 KHz 15.00 KHz
14
7. General Error Function
11. Natural Drain/Water Leak Error
- If more than 4 times of water supply and safe water level of Heater are sensed for each course, this error will
occur.
-Display:"
LE
- This error will be released by turning off Power S/W.
12. Tacho Error
- If Motor Tacho is abnormal, this error will occur.
- If Tacho signals are inputted less than 2 for 2sec after Motor started, this error will occur.
-Display:"
3E"
- This error will be released by turning off Power S/W.
13. Motor TRIAC Short Error
- If Tacho signals are inputted more than 300 every 1sec in the operational interval less than 90RPM, this error
will occur.
Turn off Power S/W at that time.
-Display
:"bE
"
- This error will be released by turning off Power S/W.
14. Thermistor Abnormal Error
- If Thermistor circuit is abnormal, this error will occur.
-IfThermistorislowerthan0.2Vorhigherthan4.5V,thiserrorwilloccur.
-Display
:"tE"
- This error will be released by turning off Power S/W.
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