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26 _ Troubleshooting

Symptom

Check Code

Countermeasure

Troubleshooting Procedure

Measurement Picture

W

ater

Supply

Check

►

4C

This

may

occur

when

the

water

supply

valve

is

defective.

•

If

the

water

supply

valve

is

broken

, replace

the

valve.

•

Check

if

the

water

supply

is

block

ed

due

to

an

alien

substance

in

the

valve

or

check

if

the

water

is

supplied

to

the

machine.

If

a

problem

is

found,

take

the

appropriate

countermeasure.

•

Check

if

the

water

supply

is

block

ed

due

to

the

water

being

frozen.

•

If

the

P

BA

Relay

malfunctions,

replace

the

PBA.

•

Make

sure

that

the

cold

water

tap

and

the

hot

water

tap

are

properly

connected

at

both

the

tap

and

the

machine

1.

Measure

the

resistance

of

the

water

supply

valve.

-

Resistance

:

0.9KΩ

to

1.1KΩ

between

the

terminals

of

the

W

ater

Supply

V

alve.

2.

Check

whether

there

is

foreign

material

in

the

W

ater

supply

valve

filter

.

This

may

occur

when

the

main

PCB

is

defective.

This

may

occur

due

to

frozen

water

.

Drain

Check

►

5C

This

may

occur

when

the

drain

pump

is

defective.

•

Check

if

there

is

any

alien

substa

nce

inside

the

draining

pump

motor

.

•

Check

the

natural

drain

in

the

sam

e

manner

.

•

Check

if

there

are

any

incorrect

connections

or

broken

wires.

•

If

the

m

achine

m

alfunctions

interm

ittently

when

the

wash

tub

water

temperature

is

high,

replace

the

pump.

•

If

the

m

otor

stops

due

to

the

water

being

frozen

in

winter

, remove

the

frozen

water

referring

to

the

relevant

repair

procedures.

Check

the

drain

pump

resistance.

(Resistance

:

13.5

~

16.5

Ω)

This

may

occur

due

to

frozen

water

.

Check

if

there

is

any

alien

substance

inside

the

draining

pump.

This

may

occur

when

the

main

PCB

is

defective.

Communication

Check

►

AC

The

signals

between

the

sub

and

main

PBAs

are

not

sensed.

•

Check

the

wire

connections

and

terminal

contacts

between

the

sub

and

main

PBAs.

•

Check

for

disconnected

wires.

•

Check

whether

the

sub

PBA

is

short-circuited

because

of

moisture.

•

If

the

m

ain

PBA

’s

communication

circuit

is

faulty

, replace

it.

-

Incorrect

wire

connections

between

the

sub

and

main

PBAs.

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Содержание WA7750M

Страница 1: ...Basic Name WA7750M Basic Code WA52M7750AW A4 Model Name WA50R5400AV WA7000R Model Code WA50R5400A WA50R5200A WA54R7600A WA54R7200A WA50T5300A 1 Safety Instructions 2 Features and Specifications 3 Dis...

Страница 2: ...bly and reassembly 10 3 2 Standard disassembly drawings 11 4 Troubleshooting 21 4 1 Information modes 21 4 2 Corrective actions for each Check code 25 5 PCB diagram 30 5 1 Assy PCB main 30 5 2 Circuit...

Страница 3: ...isconnect the power plug before servicing 4 Failing to do so may result in a risk of electric shock Do not allow consumers to connect several appliances to a single power outlet at the same time 4 The...

Страница 4: ...acket heater it touches the drum and could cause noise and electric leakage AFTER SERVICING Check the wiring 4 Ensure that no part of the wiring harness makes contact with any rotating part or sharp e...

Страница 5: ...control button using a sharp tool or object 4 This may result in electric shock or damage to the product WHILE SERVICING When wiring a harness make sure to seal it completely so no liquid can enter 4...

Страница 6: ...asure the insulation resistance between the power plug and the grounding wire of the washing machine The value must be greater than 10M when measured with a 500V DC Megger Ensure washing machine is le...

Страница 7: ...f Clean Keep your washing machine hygienically clean while being eco friendly and saving money Self Clean removes dirt and odor causing bacteria from the drum It uses soaking pulsating and high speed...

Страница 8: ...0R5200A WA50T5300A DIMENSION Inches cm A Height 44 6 1132mm B Width 27 5 699mm C Height with Door open 58 3 1480mm D Depth 29 4 747mm WATER PRESSURE 20 116psi 137 800kPa WEIGHT 61kg 134lb 60kg 132lb C...

Страница 9: ...s Yes Pulsator material STS PP PP PP Max rpm 750 750 750 750 Motor F DDM F DDM F DDM F DDM Design Color Black White Black White Black White Champagne Main display 18 88 18 88 18 88 18 88 Jog Dial Chro...

Страница 10: ...10 13 Internal Heater Yes VRT PLUS Yes Pulsator material PP STS Max rpm 750 800 Motor F DDM DD Design Color White White Inox Main display 18 88 18 88 Jog Dial Chrome Chrome Led color Ice blue Ice blue...

Страница 11: ...NGER DC61 00224B Default MANUAL BOOK DC68 04037A Model No WA50R54 DC68 04037C Model No WA50R52 Default CABLE TIE 6501 000121 Default ASSY CAP V W DC97 18313A Default LEG RING DC61 03458A 5 4cu ft Only...

Страница 12: ...Pulsator 1 Assy stator 5 Support saddle 4 Assy clutch 11 Assy rotor 1 Double ended spanner 10mm 17mm Replaced by box driver Vice pliers A Tool for protecting empty turning of bolt or abrasion from usi...

Страница 13: ...from cover connector and wires connected to the sub PCB 4 Pull the knob encoder to separate it and then remove the 2 fixing screws 5 Separate wire connected to the touch module and 4 hooks 6 Separate...

Страница 14: ...ate the water valve housing 2 Remove the 3 fixing screws 3 Remove the wire harness and release the clamp connecting the hose When releasing the clamps take care that you do not tear the hoses Door Ass...

Страница 15: ...rt Figure Description Top Cover Assembly Door Switch Common continued 1 Remove the 2 Screws 2 Separate the control Panel assemble 3 Remove the 4 Screws 4 Separate the Back Cover 5 Separate the Pump Wi...

Страница 16: ...mbly Door Switch Common continued 6 Separate the Pump Wire Connector 2Points Pump Wire may snap if you separate top cover assembly without step 3 step 6 7 Remove the 4 Screws Door Switch continued 8 S...

Страница 17: ...tch 11 Replace the Door switch Top Cover Assembly continued 12 Remove 3 screws from PBA 5 3 1 6 4 2 13 Separate connector Housing 1 Valve Water 4EA 2 Pressure Sensor 1EA 3 Water Jet Key 1EA 4 Door S W...

Страница 18: ...over Assembly continued 14 Separate 3 screws from the Earth wire 15 Before separating the hose release the clip When releasing the clip take care that you do not tear the hose 16 Separate the Top Cove...

Страница 19: ...e control panel assembly 2 Separate the pressure switch housing 3 Before separating the hose release the clip When releasing the clip take care that you do not tear the hose Drain Pump 1 Separate the...

Страница 20: ...e top cover assembly by lifting and all the wires connected to the housing 3 After separating cover top assembly remove the 4 screws fixing the cover tub and separate the hooks 4 Separate the pulsator...

Страница 21: ...tion 8 Place the main body so that the front frame faces upward and remove the 4 bolts holding the support saddle with a 10mm wrench When you place the washer on the floor take care that you do not da...

Страница 22: ...g and then remove the DDM motor 12 Separate the wire and remove 2 screws holding the drain motor 13 Remove pin link and then separate link drain 14 Remove all screws fixing the clutch assembly and the...

Страница 23: ...e terminal is not connected Wire disconnected The warm water and rinse connectors are wrongly connected to each other This occurs if the PCB terminal from the drain hose to the detergent drawer is not...

Страница 24: ...ing AC6 The signals between the Inverter PBA and main PBA are not sensed because of communication Check Check The connector connections between the Inverter PBA and main PBA carefully Check for incorr...

Страница 25: ...se is clogged and there is an injection Check at a narrow section the water level detection does not work and water is supplied continually Water is supplied continually because of freezing or because...

Страница 26: ...Replace the Mems PBA 2 Replace the Main PBA 8CB2 Mems Sensor Could be Faulty 8CA3 Replace MEMS PBA if there is External Mems PBA Replace Main PBA if there is no External Mems PBA 8CB3 8CA4 8CB4 Clutch...

Страница 27: ...l sensor frequency 1 Check it after the water level sensor and the connector are connected Checking Part Blue Color Wire orange Color Wire 2 Frequency Approx 26 4 KHz without water Min 25 9KHz Check i...

Страница 28: ...ective This may occur due to frozen water Drain Check 5C This may occur when the drain pump is defective Check if there is any alien substance inside the draining pump motor Check the natural drain in...

Страница 29: ...k whether the door lock switch unit is inserted Check whether the door lock switch unit is damaged Check the disconnection of the wire If the door lock switch unit is defective replace it If the main...

Страница 30: ...e laundry load is unbalanced M ake sure to check if there is any laundry present that absorbs a lot of water even if its volume is small and explain the problem comprehensively if necessary Mems PBA D...

Страница 31: ...sensor Main PCB fault Freezing in the winter season IPM temperature is abnormally high Check the connections for the washing heater temperature sensor connector If the washing heater temperature senso...

Страница 32: ...The switch for the Washing Heater power Heater Model Only 3 RY102 Main Relay Be Supplied PBA power when the Power button is pressed AC Neutral 4 CN901 Motor Output MOTOR 3 phase Output 5 CN801 Sensor...

Страница 33: ...lutch 8 Drain Pump 9 NC 10 NC CN901 1 MOTOR_W 2 MOTOR_V 3 MOTOR_U CN902 For Writing 1 5V 2 RXD_INVERTER 3 TXD_INVERTER 4 GND 5 BOOT_INVERTER CN801 1 12V 2 GND 3 RX from SUB 4 NC 5 TX to SUB 6 Water Te...

Страница 34: ...902 For Writing 1 5V 2 RxD _Inverter 3 TxD_Inverter 4 Gnd 5 Boot_Inverter CN801 1 12V 2 GND 3 Rx From Sub PBA 4 NC 5 Tx to Sub 6 Water Temp 7 Sub Reset 8 NC 9 5V 10 ADW Key Input 11 Gnd 12 Gnd 13 12V...

Страница 35: ...zzer Circuit Be generated sound when Key is pressed or the encoder is operated 2 CN6 Touch Writing Touch MICOM Writing 3 CN5 Writing Display MICOM Writing 4 CN3 Connect Main PBA Receives power from th...

Страница 36: ...s authorization CN6 For Writing 1 GND 2 TOUCH_RESET 3 SWD_CLK 4 SWD_IO 5 5V CN5 For Writing 1 5V 2 RXD 3 TXD 4 GND 5 BOOT CN3 1 NC 2 NC 3 TX to Main 4 RX from Main 5 MCU_RESET 6 TOUCH_RESET 7 GND 8 1...

Страница 37: ...GRAM 6 1 WIRING DIAGRAM This Document can not be used without Samsung s authorization REFERENCE INFORMATION BLK BLACK BLU BLUE GRN GREEN GRY GRAY NTR NATURAL ORG ORANGE PNK PINK RED RED SKYBLU SKYBLUE...

Страница 38: ...IAGRAM 5 4CU FT HEATER This Document can not be used without Samsung s authorization REFERENCE INFORMATION BLK BLACK BLU BLUE GRN GREEN GRY GRAY NTR NATURAL ORG ORANGE PNK PINK RED RED SKYBLU SKYBLUE...

Страница 39: ...e W A 5 0 T 5 3 0 0 A C U S Product type CAN NOT CHANGE Auto Washing machine SAMSUNG s Guide Line Market Claim Capacity 5 4 5 0cu ft Intro Year R Intro Year 2019 T Intro Year 2020 Series Grade Product...

Страница 40: ...nual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law 2020 Samsung Electronics Co Ltd All rights reserved P...

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