Samsung Top Load Washer Repair Guide

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HA Repair Guide Top-Load Washer

Top Load Washer

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Vibration

Noise

Vibration

& Noise

Water Leakage Leakage

Water Supply

No Power

Improper

Operation

Error mode

Test mode / Diagnosis

Power &

Error

HA Repair Guide [ Top Load Washer]

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#1. Symptom : Vibration & Noise

1-1. Schematic Diagram of Repair

Check-1 Cause Check-2 Tip

Code

Block

# 1 # 2 # 3

Spin-Vibration

1.Spin-basket defect Spin friction abrasion Concentricity Check (4mm) Curing part burst Spin-Nut loosening check

1-1

Spin-Basket

Spin-Nut +Clutch

Moisture-proof cloth

2.Damper defect Tub moving inclination check

Grease/Parts check Low-temp installation

environment

1-2

Damper Moisture-

proof cloth

Low-Temp

Environment

3. Unstable installation place

Floor moisture environment Low-temp environment

installation Dryer Pair installation

narrow Rear hose interference Floor shaking

1-3

Installation place

Install Environm

ent

4.Unstable installation of product Leg level installation check

Non-Slip Pad not attached Moving Pad/Pan-Drain

1-3

Level installatio

n

Non-Slip Sheet

Install

Product Noise

1.Pump-Drain defect

Pump-Case damage Fixing bolt loosening Foreign substance in Pump Impeller damage

1-4

Pump-Case

Impeller Foreign Substanc

e

2.Clutch,Motor defect Spin-mode PBA Check

Abnormal noise diagnosis Motor friction Check

1-5

Main-PBA (IPM)

Hall-S/S Motor

3.MEMS Sensor defect

Error Mode Check -8E1 Voltage Check Loose Terminal Check

4-11

Main-PBA MEMS Harness

4.Customer misunderstan

ding NDF Customer use moisture-

proof cloth Washing a little amount Spin-only course used Not using the Net only for

bedding

1-6 Moisture-

proof cloth

Washing of Little Amount

Not using for-

special-use net

5. Product inherent feature

Resonance RPM frequency shaking

Shaking at the beginning Sound of Tub water (Add salt water to Balancer)

1-6 Resonance Phenomen

on Balancer

Chassis Project Basic Model Type

Top-Load All All Tub With Pump / Tact Button

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Step 1

Spin-Basket Exterior Damage Check - Check the friction phenomenon at the top. - Check the opening of Wrapper bottom. If exterior damage or friction phenomenon occurs

as in the photo, replace the Spin-Basket & Tub-Cover.

Step 2 Spin Mode Check - Turn knob and select SPN to start. - Check if the max RPM is reached. (800rpm 10%) Unbalance Test Check - Run Spin Test with Unbalance 400g placed on one

side. 400g about 3 towels OR Jig for this purpose

only - Check for abnormal noise & Set moving. If noise or operation does not seem normal, check

Step #3.

Step 3

Spin-Basket Concentricity Check - Turn the Spin-Basket based on 9 o clock direction

and measure the deviation. - If it shakes more than 5mm, it is defect.

SpinNut Loosening Check - When Shaken, the Spin-Basket shakes. - If the spot of Spin-Nut fastening is inclined to one

side, it is defect. => Spin-Basket concentricity defect & Spin-Nut

connection defect - Replace the Spin-Basket & Spin-Nut.

- Check the customer usage condition and explain to the customer how to. Explain to the customer after SVC. Check the customer usage condition. - Check if moisture-proof cloth is used and explain

not to use it. : WaterProof Sheet, Mats, clothing

Check Point Check the condition of Spin-Basket / usage environment.

Tip 1-1. Spin-Basket Abnormality

Press and hold Spin+Soil and push the power button => Test Mode

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Step 1

Check if Tub moves up and down. - If the surrounding temperature is below zero at the

time of installation, explain to the customer that it is inappropriate for the product installation.

Check if there is noise. - If Damper does not return or press when checking

abnormal noise & up-and-down movement, check Step #2.

Step 2 Check damper parts & the condition of grease

application. - Check for the loosening of Damper inside. : Sponge inside is damaged or omitted. - Check the grease on Damper. Maintain Damper

smooth. Replace the Damper. Check if Damper is damaged. - Replace the Damper.

- Check the usage condition of customer and provide guidance.

Explain to the customer after SVC. Check the customer usage condition. - Check if moisture-proof cloth is used and explain

not to use it. : WaterProof Sheet, Mats, clothing

Check Point Check the condition of Damper operation.

Tip 1-2. Damper Abnormality

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Step 1

Check the frictional relationship with the

surroundings when installing. - Install a pair of dryers attached. If frame is shaking

during spinning mode, interference noise is generated.

Friction occurs due to unstable shaping of water

supply/drain hose - Prevent friction between water supply/drain hose and

product or wall. Floor is shaking, which makes the product move. Case#1 Levelness defect due to floor damage. Case#2 Shaking due to old laundry room

floor(lumber). => It is recommended to contact the installer and request

for re-installation such that it does not influence on the vibration.

Step 2 Check the condition of levelness of product

installation. - For the left and right of product, check the level at

the top of Lid-T/C. - For the front and rear of product, check the level on

the side of product. When checking the left-and-right level of the product,

Tub is inclined to one side due to tension of Drain-hose. (During water supply, it is in the right place.)

For level installation, adjust Leg to be attached to the

floor. Noise from Set on slippery floor (Tile, Moisture) - Attach Non-Slip Pad to both front legs on the floor. - Install the front legs of product to be located on the

Non-Slip Pad. Inappropriate material of leg for the floor Case#1 Pan Drain Friction Noise Case#2 Use paper for floor protection on the Leg

bottom. => It is recommended to contact the installer and request

for re-installation such that it does not influence on the vibration.

Check Point Check the installation place & the condition of unstable installation.

Tip 1-3. Install Place & Unstable Install Abnormality

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Step 1

Mechanical Friction Noise - When pump drain is operating, it vibrates a little. If drain parts such as drain hose are near other parts, it may cause mechanical friction noise.

Step 2

Foreign materials in Pump Drain - Open debris filter and check there are foreign materials such as coins, pins etc. - Check pump drain impeller is broken.

If there is noise or operation is not smooth, check Step #3.

Step 3

Pump Drain - If pump drain is defective, it may cause noise during drain cycle. In this case, replace pump drain.

Small foreign materials

- When water is draining through drain hose,

small foreign materials could drain with

water because there is no filter.

So, it can make a little bit of noise but it is

not a problem

=> Replace the Pump-Drain.

Check Point Check the condition of Pump-Drain.

Tip 1-4. Pump-Drain Abnormality

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Step 1

Check for the breakage of wire of washing

motor. - Separate the Cover-Panel from product. - Separate the 9Pin housing to measure the

Female terminal. - Motor Coil Measurement 3 phases of Coil RST : 9.82 Resistance changes due to influence by

Magnetic of Rotor. If coil value open defect, check the terminal pin

and replace the stator.

Step 2

Check the operation of washing motor. - Turn the power on and start the normal course. - When weight-sensing is operating, check the

frictional noise of washing motor while Motor-L / Motor-R is rotating.

When there is abnormal noise or Rotor

constraint, replace the Rotor.

Step 3 Check for Clutch noise during spinning mode. - Press and hold Spin+Soil, while pushing the power button. =>Test Mode - Adjust knob and select SPN to start. - Check if max RPM is reached. (800rpm 10%) If noise is generated from Clutch, disassemble

the Rotor and check for abrasion. - Disassemble the Rotor. - Check for the abrasion of Gear of Clutch-Boss

assembly. => Replace deformed Clutch Lever and damaged Gear.

Check Point Check the condition of Clutch & Motor operation.

Tip 1-5. Clutch & Motor Abnormality

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Step 1

Explain to the customer. - Check the customer usage condition. - Check if he/she uses moisture-proof cloth and tell

them not to use it. : WaterProof Sheet, Mats, clothing Unbalance vibration due to laundry inclined to one

side. Case#1 Inclination occurs due to washing small

amount or excessive amount. Case#2 Inclination occurs due to using spin-only

course. Case#3 When washing bedding, bedding net is not

used. => Check the customer usage condition and explain

how to use it correctly.

Step 2 Resonance phenomenon occurs in the rising

section during spinning mode. - Hudson Resonant Frequency : 200~450rpm section - In the resonant frequency, Tub moves. The resonance phenomenon occurs in the rpm

rising section at the beginning for spinning, which is normal.

The sound of water is generated when shaking

tub. - Explain that the sound comes from salt water which

is the center of gravity in the Balancer and that it is normal.

If there is no water sound in the Balancer when

checking the Tub, it is defect. Thus, replace the Spin-Basket.

=> Explain that it is one of the characteristics created

while designing the product.

Check Point Explain the NDF and the product characteristics.

Tip 1-6. Explanation of NDF & Product Characteristics

Salt-Water

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#2. Symptom : Water Leakage



Code

Block

# 1 # 2 # 3

Water Supply

1. Water Supply Hose Connection

Tool over-connection loose

Packing omitted Y-Joint Seal water

leakage Cold-water-only

installation Wall-attached

installation

2-1

Water Supply Hose

Water Supply Valve

Y-Joint

2.Water-V/V Leakage

Foreign substance enters pipe

End of water supply valve damaged

Body damage Bad packing assembly Freeze in the winter

2-2

Water Supply Valve

Water Supply Hose

Piping

3. Detergent Drawer Leakage Nozzle spray angle

Bleach overflow Water pressure /

Inclined installation Too much laundry

input

2-3

Install Condition

-slope -water

pressure -filter

Nozzle Washing Amount

4.Tub-related leakage Water level hose

damage Aquajet overflow Tub Crack Damage by coin

2-4

Tub Coin

5.Pump leakage

Pump-Drain hose Pump-Case Drain hose

2-5

Pump-Case

Drain-Hose

Installation/ NDF

1. Install & NDF

Waste water backward-flow

Continuous drainage Drops a little

2-6

Drain Hose

Clamp Pulsator



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Step 1

Over-connection of water supply hose using a tool - The screw-head of water supply valve is loose due to

abrasion. - Leakage occurs in the scratched part of the end of

water supply valve.

Step 2 Water Supply Hose Unit Check - Water leaks due to loose caulking. - Check the water pressure: Shall not exceed max of

8kgf.. Check for defect in installed sub-material unit. - Check if internal Packing-Seal is omitted or worn out. - Check for water leakage of Y-Joint Unit. : Apply more Seal Taping to the water-supply-related

parts. If water leaks due to installation condition outside the

product, check Step#3.

Step 3

Hose is bent during installation. - Water leaks due to hose bending and friction caused

by the installation of product rear close to the wall. - It is recommended that the gap between the product

rear and the wall be maintained at 6in(152).

Water leaks due to backward-flow when installing cold-water-only.

- Water leakage due to backward-flow phenomenon of internal Drawer.

- Error occurs during hot water course; and thus explain to the customer to install both hot and cold water.

Explain to the customer after SVC. => It is recommended that the installer re-install it such

that it does not influence on water leakage and vibration.

Check Point Check the condition of Water-Hose.

Tip 2-1. Water-Hose & Connection Abnormality

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Step 1

Check if the Filter of water supply hose is

clogged by foreign substance. - Separate the Filter with a tool. Check for the clogging and clean the Filter. - Clean it regularly to prevent accumulation of

foreign substance. - Prevent the water leakage caused by valve.

Step 2 Check the exterior of water supply valve unit. - Check if the screw-head is worn out due to over-

connection of water supply hose using a tool. - Check for the scratch at the end of water supply

valve in the process of installation. Check for the water leakage part of water supply

valve. - Water leaks due to continuous water supply

because foreign substance enters inside. - Water leaks due to damaged body of water

supply valve. - Water leaks due to bad Packing connection. If noise or operation is not normal, check Step #3.

Step 3

Water Suply Valve Body Damage - The body of water supply valve is damaged due

to cold temperatures. Explain to the customer after SVC. Explain to the customer to re-install the product

such that it is not influenced by cold temperatures

Check Point Check the Water-V/V & Connection.

Tip 2-2. Water-V/V & Connection Abnormality

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Step 2 It scatters outside according to the angle of

Nozzle. - Adjust it if the angle of assembly is warped. - Waterjet scatters to Burr of the plane inside

Nozzle. -> Replace. Bleach Leakage-Point - Apply Bond to Section A-A. - Replace the Case-Bleach(U). Detergent Leakage-Point - Check if powder is mistakenly used in drawer

for Liquid detergent.

Step 3 Detergent & Bleach backflows out of Tub. Check the water pressure environment to

maintain the appropriate pressure. : Shall maintain the water pressure at 1kgf. or

over. : Clean the Filter of water supply valve regularly. Laundry input - If too much laundry is input, it scatters during

water supply or circulation(cycle) pumping. - It is recommended that laundry net be used

for the laundry which tends to move to the top, such as bedding, etc.

Check the level installation condition of product. - If the product inclines to the rear side, it is

vulnerable to Detergent leakage.

Check Point Check the condition of Detergent & Bleach.

Tip 2-3. Detergent & Bleach Abnormality

Leakage-Point Section A-A

OK

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Step 1

Check for the water leakage phenomenon of

water level hose. - Water level hose inserting part damage Water level hose separation or assembly

omitted. Re-assemble the water level hose and apply

Bond. - Assemble the Clamp.

Step 2 When aquajet is working, check for the

overflow. - Check if internal packing is omitted. - Replace the screw fixing Tub-Cover top with

more improved sample. Check for the water leakage part of tub. - Water leaks due to Cap trap welding. - Crack caused by unmelted injection at the Tub

bottom.

Step 3

Tub below 100mm point damage - Damage usually occurs at the point 100mm

below the tub during high-speed spinning mode due to coin and foreign substance in the laundry.

Check the customer usage condition and

explain to the customer how to use it properly.

- Explain how to remove coin and foreign substance in the laundry.

Check Point Check the condition of Tub & Aquajet.

Tip 2-4. Tub Abnormality

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Step 1

The structure of Pump-Case Tub bottom

connection is damaged or separated. - Structure of Pump-Case assembly at the Tub

bottom (Portion produced before Dec 10, 2012) Replace the damaged Pump-Case and fix

wire. - Insert the taping into hook of wire. - Bind it with Cable Tie, since the wire

separates and breaks due to continuous vibration.

Step 2 Check for the water leakage of Drain-

Hose(o). - If water droplet forms, check for crack or

tearing. - Replace the Drain-Hose(o). Check for the water leakage of Pump. - Check the water leakage phenomenon of

Pump. - Replace the Assy of Pump-Case. Check for the water leakage of Pin-Hole and

binding part of drain hose.

Check Point Check the condition of Pump & Hose.

Tip 2-5. Pump Connection Abnormality

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Step 1 Waste water flows back into the washer. Drain hose is installed to deep in the stand

pipe in a basement. Thus, waste water discharged from first floor flows back into the product.

As in photo, place the drain hose so that drain

hose may not go back to the upper part of U-trap.

Step 2 Water drains during washing mode. If drain hose is installed after loosening the

fixing part, then water drains continuously. As in the warning label, re-install it without

disassembling the drain hose fixing part. Then, explain how to use it.

Step 3

If water drop falls little by little even after

washing mode ends, Explain to the customer that the water

remaining in the detergent drawer drops due to impact when disassembling it.

Check Point Check the condition of Install & NDF.

Tip 2-6. Install & NDF Connection Abnormality

Re-install the drain hose which flows back to the U-Trap of pipe.

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#3. Symptom : Water Supply & Drain



Code

Block

# 1 # 2 # 3

Power Supply

1.No power

Power-Cord breakage

Fuse breakage EMI-Filter breakage Main-Harness defect

3-1 Power-Cord

EMI-Filter Harness

Water Supply Fail

1. Water Supply Fail

Install close to wall Water valve check Cold/Hot water

switched Clean foreign

substance in pipe filter

Valve coil resistance PBA applied voltage

3-2

Installation

Valve Damage

PBA

2. Weight sensing defect

Weight sensing reduce

Motor unit constraint

Load

3-3

Washing Motor

Hall Sensor

PBA

3.Water level sensing defect

Water level hose Punk

Water level hose clogged

Water level sensor wire breakage

Water level frequency check

3-4

Water level hose

Water level

sensor

Detergent Drawer Residue

1. Detergent residue If water remains If detergent remains Gel-type or highly-

enriched detergent

3-5 Detergent Rinse Bleach

Drain Fail

1. Pump check Nd Error check Pump-Case damage Pump Wire breakage Drain hose clogged

with foreign substance

3-6 Pump

damage

Wire brea

kage

Foreign substance clogging



- 18/37 -

Step 1

Unit does not come on. - Measure the power of socket and check if it is rated.

Check the Power-Cord. - Terminal deformation - Check if the exterior is corroded.

Step 2 Check for an open fuse. - Replace the fuse if it is open - Replace it with the rated capacity. Check for the wire breakage defect in EMI-Filter. - Check for the contact fail due to reverse insertion

of Housing. - Check if the terminal pin is pushed back. - Check if the internal wire is broken. Measure the voltages of both ends of the EMI-

Filter. Maintain the voltage of 120V If NG, replace the

wire. Maintain the voltage of 120V If OK, check Step #3.

Step 3

Check the AC power supplied to PBA. BlueWhite of CN1: Check if it maintains the voltage

of 120V. Maintain the voltage of 120V If OK, replace the

PBA. Maintain the voltage of 120V If NG, replace the

wire.

Check Point Check the condition of Power Cord/Fuse/EMI-Filter.

Tip 3-1. No Power Abnormality

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Step 1

Check if water supply fails due to hose bent during

installation. - Water supply fails due to hose bending and friction

caused by the close-to-wall installation of the product rear.

If the filter is clogged due to pipe problem or

water quality problem, - Separate the filter with a tool. - Clean the Filter with a brush.

Step 2 Check the condition of water supply valve

connection. - Check if the terminal pin is pushed back. - Check if Harness wire is broken. Check the exterior of valve. - The solenoid does not sit flush on the valve body. - Crack in the valve body. Check the resistance of both ends of water supply

valve. Maintain the coil resistance at 1.0 -> If O.L,

replace the valve.

Step 3

Check the power supplied from PBA. - Press and hold Spin+Soil, while pressing the power button=> Test Mode - Turn knob to select tS mode. - Push Temp 4 times to work the valve. - Turn on all the LED lights to measure the power supply of water supply valve. Check the applied voltage of both ends of the

water supply valve. Maintain the supplied voltage of valve at 120V. If

NG, replace the PBA.

Check Point Check the Water-Hose / Water Supply Valve / Install Condition.

Tip 3-2. Water Supply Fail Abnormality

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Step 1

Check the water level by sensing weight with empty tub. - Normal Course: approx. 80mm - Other Course or Soil-Level : approx. 100mm Explain to the customer how to use it. - Explain that either Other course or Soil is recommended

because they correct the water level based on the absorption power of load.

Step 2

Wrong weight-sensing due to washing motor stator

defect - Separate the Cover-Panel from product. - Separate the 9Pin housing to measure the Female

terminal. - Motor Coil Resistance 3-phases of Coil UVW : 9.82 - If coil value open defect, check the terminal pin. Incorrect weight-sensing due to the abnormality of

Washing motor rotor. - Constraint occurs during operation because the

surrounding iron powder enters due to the magnetism of Rotor-Magnetic. Thus, wrong water level is sensed.

Incorrect weight-sensing due to defect in Hall Sensor

characteristics - Check of -VCC(RED) The Voltage : approximately 5.0V - Check of -U(BLU) / -V(ORG) The Voltage : approximately 0~1v Pulse Rotor slow turning by manually -GND(GRN) Contact to (-)Black Tester Replace the Main PCB

Step 3 Check the Wash Motor Supply Voltage of PCB

- Pin #1 / #2 / #3 of CN3 = DC 145v

(GND CN1 Black)

Replace the PBA

Check Point Check the condition of Motor weight-sensing.

Tip 3-3. Weight-Sensing Abnormality

CN3 1-U 2-V 3-W

Normal course

Other course

01v

- 21/37 -

Step 1

If 1E error occurs in Main PBA, have it checked.

Check if the wire of water level sensor is broken. Maintain the coil resistance at 20~24. -> If O.L,

replace it. Measure the frequency of water level sensor during

stand-by. - Measure the water level sensor during stand-by with

the power on. - Simultaneously push the Spin+Delay Start buttons for

10 sec. - Turn knob to select Heavy-Duty course. - 0266 are displayed by turns. How-to-read: 0266 => 0266 => 26.6kHz Frequency of 26.4kH : If 25.9kHz or lower, replace it.

Step 2

Check the sensing of water level sensor, - if the water level hose is clogged by foreign substance

or bending; - if the water level hose is punctured or separated. When the frequency does not rise during water supply,

it is considered as water leakage phenomenon due to Tub damage. Thus, water supply stops.

Check if the contact between water level sensor and

terminal is incomplete.

SVC Note Do not adjust the top part of water level sensor. Bond is applied to the top part of water level sensor

after setting it at the time of factory shipment. Thus, do not adjust it.

If it is adjusted, the spinning mode is not activated due to change in Reset frequency.

Check Point Check the water level sensor & connection condition.

Tip 3-4. Water Level Sensing Abnormality

Not Adjust Bolt

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Step 1 If water remains, open the Siphon-Cap of detergent drawer and fabric

softener drawer and check for Burr which occurs during injection.

Case of Burr see photo of phenomenon

Step 2 If detergent remains, the detergent was thickened (viscosity) and

solidified because it had been used for a long period of time. Thus, explain to the customer the caution phrase of detergent manufacturer as to dissolving it in water.

Guide phrase from the manufacturer, regarding

detergent characteristics

Step 3 Explain to the customer after SVC. Explain him/her to limit using high-enriched or gel-

type detergent.

Check Point Check the condition of Detergent & Bleach.

Tip 3-5. Detergent Drawer Residue Abnormality

Caution : If Product freezes or thickens, dissolve a capful in a cup of water. Shake well before use.

- 23/37 -

Step 1

Check the pump with drain fail. - Check Voltage at Pin YellowBlack : 120vAC Replace the Main PCB - Check Pump Coil at YellowBlack : 15.5 Replace the Wire or Pump Step #2 Wire Check Small foreign materials





not a problem - Check pump drain impeller is broken.

Step 2 The structure of Pump-Case Tub bottom

connection is damaged or separated. - The structure of Tub bottom Pump-Case

assembly. (Portion produced before Dec 10, 2012) Replace the damaged portion of Pump-Case

and fix Wire. - Insert the taping into hook of wire. - Separation and wire breakage occur due to

continuous vibration. Thus, bind it with Cable Tie.


Tip 3-6. Drain Fail Abnormality

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Error Mode Check 1. Fix the Error mode displayed on Control Panel. 2. Service Mode Diagnostic Mode Error Check : Delay Start + Extra Rinse (*WA400WA422) : Delay Start + Aquajet (*WA456) : Push Spin, and if d is displayed, turn knob.

Display (Image)

Error Item How-to IMAGE

Nf No Water Fill Water supply hose bent. Water supply valve/PBA power

supply check

Nd Will not drain Check the power of drain pump. Clean the filter of drain pump.

IE Sensor fail Water Sensor Measure the water level

frequency during stand-by.

OE Water over flow Constant water supply from

Water supply valve Excessive foam from detergent

for general use

LE Water Leakage Water level sensor / Water level

hose Punk Tub Leakage

3E Wash Motor Washing Motor Wire Connection PBA IPM output voltage check

dC Unbalance Level installation check Check the standard for

recommended use of laundry

Next Page

#4. Symptom : Error Check


(*WA456)

- 25/37 -

Error Mode Check 1. Fix the Error mode displayed on Control Panel. 2. Service Mode Diagnostic Mode Error Check : Delay Start + Extra Rinse (*WA400WA422) : Delay Start + Aquajet (*WA456) : Push Spin, and if d is displayed, turn knob.

Display (Image)

Error Item How-to IMAGE

tE Water temp. Sensor Wire Connection Measure the resistance of sensor

temperature.

nf1 Water Hose

Connection Cold/Hot water supply hoses

switched.

LO Door Will nor

Unlock

PBA Door-Lock operation check Measure the Door-Lock

resistance.

FL Fail to Lock PBA Door-Lock operation check Measure the Door-Lock

resistance.

DS Door is Open Door Open check Fabric jamming

AE PBA

Communication Sub PBA Wire Connection

E2 Button Pressed Tact Button Pressed Wire Connection

8E/8E1 MEMS Sensor MEMS Wire Connection MEMS Voltage Check

(* WA400WA422)

#4. Symptom : Error Check


- 26/37 -

Step 1 nF Error Check

Check the water supply hose during installation. - Water supply fails due to hose bending and friction,

because the product rear is installed too close to the wall.

The filter is clogged due to problems with pipe and

water quality. - Separate the Filter with a tool. - Clean the filter with a brush.

Step 2 Check the condition of water supply valve connection. - Check if the terminal pin is pushed back. - Check if Harness wire is broken. Check the exterior of valve. - The top core of water supply valve heaves. - Crack on the Body Check the resistance of both ends of water supply

valve. Maintain the coil resistance at 1.0. -> If O.L, replace

the valve.

Step 3

Check the power supply from PBA. - Press and hold Spin+Soil, while pressing the power button. => Test Mode - Turn knob to select tS mode. - Push Temp to work the valve. - Turn All the lights on to work the valve. Check the voltage applied to both ends of water supply

valve. Maintain the valve supply voltage at 120V. If NG,

replace the PBA.

Check Point Check the condition of Water-Hose.

Tip 4-1. nF Error

- 27/37 -

Step 1 nD Error

Check the Pump with the drain fail. - Check Voltage at Pin YellowBlack : AC120v Replace the Main PCB - Check Pump Coil at YellowBlack : 15.5 Replace the Wire or Pump Step #2 Wire Check Small foreign materials





not a problem - Check pump drain impeller is broken.

Step 2 The structure of Pump-Case Tub bottom

connection gets damaged and separated. - Structure of Tub bottom Pump-Case

assembly (Portion produced before Dec 10, 2012) Replace the damaged portion of Pump-Case

and fix wire. - Insert the taping into wire hook. - Separation and wire breakage occur due to

constant vibration. Thus, bind it with Cable Tie.


Tip 4-2. nd Error

- 28/37 -

Step 1 IE Check

If 1E error occurs in Main PBA, have it checked.

Check the water level sensor. - Measure the coil resistance and check for wire

breakage. Maintain the coil resistance at 20~24 -> If O.L,

replace it. Measure the frequency when the water level

sensor is on stand-by. - Measure the water level sensor during stand-by

with the power on. - Push the Spin button+Delay Start button for about

10 sec. - Turn knob to select the Heavy-Duty course. - 0266 are displayed by turns. How-to-read: 0266 => 0266 => 26.6kHz If the frequency is 26.4kH : 25.9kHz or lower,

replace it.

Step 2 OE Check

Check the sensing of water level sensor, - if water level hose is clogged by foreign substance

or bending; - if the hose is punctured or detached. The frequency does not rise during water supply,

which is considered water leakage phenomenon caused by Tub damage. Thus, water supply stops.

Check if the water level sensor terminal contact is

incomplete. They apply bond to the top part of water level sensor

when shipped from factory. Thus, do not adjust it. If you adjust it, the spinning mode cannot be

activated due to change in Reset frequency.

Check Point Check the water level sensor & connection condition.

Tip 4-3. IE / OE Error

Not Adjust Bolt

- 29/37 -

Step 1 LE Error Check

If LE error occurs in Main PBA, have it checked. Measure the frequency when the water is at mid- to

high level. - Measure the water level sensor during stand-by with

the power on. - Push Spin+Delay Start for about 10 sec. - Turn knob to select the Heavy-Duty course. - 0266 are displayed by turns. How-to-read: 0266 => 0266 => 26.6kHz Frequency of 21~24kH : If out of range, have it

replaced.

Step 2 Water level hose Air leakage If LE error occurs in Main PBA, have it checked. - Crack in the water level hose. - Check if air is leaking from punctured water level hose.

Step 3 Drain hose Siphon

If drain hose is inserted too deeply into drainage

adjust it not to sink to water in drainage.

Dont remove the screw holding drain hose to frame. If it is removed, drain hose is down on floor and water is drained out automatically Check if there are holes on drain hose.

Check Point Check the water level sensor & the water leakage condition.

Tip 4-4. LE Error

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Step 1

Check the Wash Motor Supply Voltage of PCB

- Pin #1 / #2 / #3 of CN3 = AC 145v

(GND CN1 Black)

Replace the PBA

Step 2

Washing Motor Stator Defect - Separate the Cover-Panel from product. - Separate the 9Pin housing to measure the Female

terminal. - Motor Coil Measurement between 3 phrases of Coil UVW : 9.82 - In the case of coil value open defect, check the terminal

pin. Washing Motor Rotor Constraint - Constraint phenomenon occurs during operation

because the surrounding iron powder enters by magnetism of Rotor-Magnetic. Thus, incorrect water level is sensed.

Step 2

Hall Sensor Characteristics Check - Remove CN9 and measure the Resistance : about 40~60

- Measure the Hall Sensor Resistance Red/Blue/Orange pin (GND CN9 Green) Replace the Wire or Motor Motor Control Signal Characteristics Check - Check Voltage at Pin Green and Blue/Orange Spin-Basket slow turning by manually - Check Voltage at Pin Green and Red : 5v Replace the Main PCB

Check Point Check the condition of Motor rotation & Hall Sensor.

Tip 4-5. 3E Error

CN3 1-U 2-V 3-W

01v

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Step 1 dC Error

Tub Balancer Check - If there is no water sound inside the Balancer when

checking Tub, it is defect. Thus, replace the Spin-Basket.

Unbalance-Retry phenomenon caused by moisture-

proof cloth - Check if moisture-proof cloth is used, and explain not

to use it. : WaterProof Sheet, Mats, clothing Unbalance vibration caused by laundry inclined to

one side. Case#1 Inclination occurs due to a little or too much

laundry. Case#2 Inclination occurs when the spin-only course

is used. Case#3 When washing bedding, net is not used. When complying with recommended washing usage

condition, check the installation condition of Step #2.

Step 2 Check for Frame touch caused by inclined installation. - For the left and right of product, check the levelness-

measuring apparatus at the top of Lid-T/C. - For the front and rear of product, check the levelness-

measuring apparatus on the side of Frame. Product moves due to floor shaking. Case#1 Level defect due to floor damage. Case#2 Shaking due to old laundry room

floor(lumber). If OK with the recommended washing usage condition

& installation condition, check the Motor & Hall Sensor of Tip 4-6.

Check Point Check the customer usage-condition/installation for unbalance & the motor condition.

Tip 4-6. dC Error Abnormality

Salt-Water

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Step 1 tE Error

Wire connection - Check the connection of wire Remove 6-Pin Housing Check the thermistor resistance.

Normal resistance : 97~98 (10)

60~61 (20)

39~40 (30)

Measure the resistance of both ends of Thermistor in the room temperature of 25 (Green/Pink) : 47.2

Replace the thermistor

Step 2 Connect 6-Pin Housing and turn the power on. Check for the normal operation of PBA. - Measure the resistance of both ends of

Thermistor in the room temperature. (Blue/Pink) : DC 2.72v

Replace the PCB

Step 3 nF1

Check if the cold/hot water supply hoses are switched when installed.

Check Point Explain the Thermistor operation.

Tip 4-7. tE Error Abnormality

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Step 1 dS Error

If the dS Error occurs. If press Start with the Door open.

If laundry is jammed under the Door.

Close the Door properly and press Start. Replace the Door-Lock

Step 2 FL Error

Sensing error occurs due to Door-lock

interference because the Door Lid-T/C shrinks in the winter.

Remove the Rib from Lever inserting part of

Door-Lid-T/C. Replace the Door Lid-T/C

Step LO Error In state of Door Unlock, Check motor resistance (Checking part : Black-Brown Wire) Normal resistance : 33 to 46 between the terminals of Motor. In state of Door Unlock, Check Door Unlock contact Resistance (Checking part : White-Blue Wire) If Resistance is satisfied with Spec, Replace the door-Lock

Check Point Check the Door / Door-Lock.

Tip 4-8. dS, FL, LO Error Abnormality

Rib

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Step 1 AE Error

Disassemble sub PBA . Check the connector which connects sub PBA and main PBA on sub PBA.

Replace the Sub-PCB

Step 2 nE Error

If there are no button stuck on control panel, replace sub PBA. This case can be caused when tact switches on sub PBA are defective. You can see that the resistance of defective tact switches is not normal. The Resistance : - ( when tact switch is not pressed ) - 0 ( when tact switch is pressed ) Replace the Sub-PCB

Check Point Check the PBA-communication / Button.

Tip 4-9. AE, nE Error Abnormality

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Step 1 8E Error

Main PCB all-in-one type MEMS circuit Check for the incomplete contact of water

level sensor terminal. Replace the PBA

Step 2 8E1 Error

Check the condition of terminal contact to

check MEMS. Check for MEMS wire breakage & circuit

defect. - MEMS Terminal Check . 7Pin RED (VCC) - 45~85 / DC +3.3V . 8Pin WHT (SPC) - 45~85 / DC +2.6V . 9Pin ORG (SD1) - 45~85 / DC +2.6V . 10Pin YEL (SD0) - 45~85 / DC +2.6V . 11Pin PNK(CS1) - 45~85 / DC +2.6V 12Pin BLU(GND) Contact to (-) Tester Replace the MEMS of Resistance - Separate the terminal to measure the

MEMS-Resistance. - According to characteristics of Tester, there

is difference in measurement due to difference in Impedance.

- Judgment should focus on wire breakage (O.L).

Replace the PBA of Voltage - Connect the terminal and measure the

voltage with the power on.

Check Point Check the PBA-communication / Button.

Tip 4-10. 8E, 8E1 Error Abnormality

Check Point

MEMS

Check MEMS-Resistance

Check PBA-Voltage

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Test Mode Power Off Status

Power On Status

Quick Test Mode

Service Mode

Quick Spin Test Mode

S/W Version Check Mode

Board Input Test Mode

Diagnostic Code Check Mode

# Quick Test Mode

You can check the operation of main electric parts easily on quick test mode.

(Water valve, Door lock S/W, Heater, Drain pump)

Enter Quick test mode.

Software version is displayed and turn jog-dial so that the version disappears.

You can check the operation of water valve, drain pump, circulation pump, heater,

door lock S/W by pressing a button.

Model Key Check part

WA400

WA422

WA456

Temp Water valve

Spin Drain pump

Soil level Door lock S/W

Model Quick test

mode Quick spin test mode

Service mode

S/W version check mode

Board input test mode

Diagnostic mode

WA400 WA422 Spin+

Soil level+ Power key

Delay start + Pre Soak +Power Key

Delay Start

+Extra rinse Soil level

Extra Rinse

Spin

WA456

Delay start + Eco Plus +Power Key

Delay Start

+Aquajet Eco plus

Check Point Check the Test Mode / Diagnostic Mode.

#5. Symptom : Test Mode & Circuit Diagram


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# Service Mode

Service mode enables service technicians to verify the operation of washing machine

and do troubleshooting.

Service mode can be entered during all washing cycle without interrupting the cycle

except some of test modes.

- The washer must be on to go into the Service mode.

- When you enter Service mode, you can see motor spin RPM.

# Quick Spin Test Mode

You can check motor spinning on quick spin test mode.

As it enters into quick spin test mode, it starts spinning and reaches to its maximum

RPM.

When motor is not spinning, you can enter into quick spin test mode.

# Board Input Test Mode

Board input test mode is to display a specified input.

As it enters into board input test mode,

Turn jog-dial so that the LED turns on and press the start / pause button.

Course Normal Perm Press Delicates/

Hand Wash Quick Wash Pure Cycle

Display Water temp.

() Water temp.

()

Door status (OP:open, CL:close)

Door lock S/W status

(UL:unlock LO:lock)

Water Frequency

# Diagnostic Mode

You can check what error codes have occurred through diagnostic mode.

When you enter into diagnostic mode, d is displayed.

And if you turn jog-dial in a clockwise or counter-clockwise,

you can see error codes that have happened recently.

Documents

Samsung Top Load Washer Repair Guide