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Step 1 Leakage from Diaphragm of the unit

Check if water leaks from Diaphragm of lower door

Check the customer usage condition

Case#1 Water leaks due to hair & lint.

Case#2 Damage due to pet dog & sharp accessories

Case#3 Jamming when laundry is put in.

Check the deformation or damage of diaphragm

Explain customer how to use washer. Replace Assy Diaphragm

Step 2 : Leakage from underneath of the unit

Check if water leaks from between tub front and

diaphragm or underneath

- Check for water leaks in front of the tub

(Common issue regarding WF42H5*** Model)

Check if hose was damaged or torn Check if hose drain(I) was disconnected

Replace Assy Diaphragm

Replace damaged Hose Reconnect the hose properly

Check Point

Symptom Guide [Front Load] Water Leakage

Clean hair. Clean Door-Glass.

- 2/12 -

Pump Case damage Check if water leaks from pump case All hoses connection to pump should be checked Check Drain Filter If Drain Filter is not assembled properly when opening / closing it for cleaning Sand & tiny foreign substance, etc, in laundry accumulate in drain filter: thus: water is not drained.

Replace pump case if it was broken Reconnect hose to pump Explain customer how to assemble filter when opening/ closing filter for cleaning Explain how to clean drain filter

Step 3 Leakage from rear of the unit

Check if water leaks from Water Valve

- Check if the end of water supply valve is scratched in

the installation process.

- Water supply valve body is damaged; and thus water leaks.

Check if water leaks from hose water - Check if water leaks from Y-Joint unit. . Apply more Seal Taping to water-supply parts

Replace Water Valve Replace Hose Water

Check Point

Symptom Guide [Front Load] Water Leakage

Filter assembled wrong

- 3/12 -

Step 1

Check the resistance of Door-Lock s/w

- Check the resistance of coil Pin1-2(Locking) and

2-3(Unlocking) of door-lock s/w

( The resistance is approximately 55.8 ~ 68.2 )

Replace Door-Lock S/W if the resistance is not normal

Step 2

Check Main PBA (AC Voltage) - Locking : (110V ~120V) . Check the voltage at Black wire of CN10 and White wire of Power relay. during door is locked. - Unlocking . Check the voltage at White wire of CN10 and White wire of Power relay during door is unlocked. Check Wire Connection

Replace Main PBA if AC Voltage is not normal. Reconnect wire harness

Step 3

Check Frame Front (Important) - Door-Lock S/W may not lock when there is an interference due to modification of the door-lock s/w along the front frame (Common Issue regarding WF42H5*** / WF45H6***)

Replace frame front Affective production range : Produced From Jan 14 to July 14

Check Point

Symptom Guide - [Front Load] Door is not locking/unlocking

OK NG

Locking Position Unlocking Position

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Step 1

First of all, in order to make sure

unit is experiencing 1E Error

please follow the procedure as right side

(Enter the diagnostic mode from

the service mode )

Check the resistance of Pressure sensor

(Common Issue regarding WF42H5*** )

Replace the Pressure Sensor if the resistance is not normal . Pin 1-2 : Open . Pin 2-3 : Open . Pin 1-3 : Short (Approx. 20~40)

Step 2

Check the signal from Pressure Sensor to Main PBA - Check the voltage at Pin1-2 and Pin 2-3 (Normal Voltage : DC 1.7 ~ 5V)

Replace Main PBA if DC Voltage is not normal.

Step 3

Check Wire Connection

Reconnect or Replace Wire Harness

Check Point

Symptom Guide - [Front Load] 1E (Pressure Sensor Error)

Normal : DC 1.7V~5V

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Step 1 Liquid defergent Container

Check whether water is remaining in the liquid

detergent container

(Common Issue regarding WF42H5*** )

Replace Guide-Liquid(M) and Cap Drawer

Step 2 Rinse Container

Check whether rinse is not dispensing or Water is remaining in Rinse drawer

Replace Assy Drawer & Assy Housing Drawer.

Step 3 Bleach Container (Affective Model : WF42H5***)

Check whether water is remaining in the bleach

container or bleach is not dispensing.

(Common Issue regarding WF42H5*** )

Replace Assy Housing Drawer. and Main PBA (Check S/W Ver.) S/W Version : 7t14-->7t20

Check Point

Symptom Guide - [Front Load] Detergent Drawer Issue

Hole added Rib added

Hose is divaricated on bleach valve Hose is divaricated on Main Valve

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Step 1 8E1 Error (Mems IC Error located on PBA)

- Affective Model : WA400**,422***,45H7000**

Check the wire harness on Main PBA

If no problem then, Replace Main PBA

Replace Wire Harness Replace Main PBA

Step 2 8E2 Error (Mems sensor Error located on Tub)

Affective Model : WA456**,45H7200**,48H7400,

WA50F9A***, WA56H9***

Check the assembly condition of Mems Sensor Check the wire connection or damage Check the signal from Mems Sensor to Sub PBA - Check the voltage at mems signal wires of CN6 after disconnecting connector. (Normal Voltage : DC 1.7 ~ 5V) But the color of mems wire may vary by model as followings WA50F*** : Red and Blue WA45H7200** : Red and Pink WA48H7400** : Red and Blue WA56H9*** : Red and Orange WA456*** : Red and Orange

Replace front frame Reconnect or Replace the Wire Harness Replace Mems Sensor If the signal of Sub PBA is ok. Otherwise, replace Sub PBA

Check Point

Symptom Guide - [Top Load] Mems Sensor Error (8E1 / 8E2)

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Check Point

Symptom Guide - [Dryer] Unit is not Heating

Step 1 Check the Installation Condition

Check the voltage at Terminal block

- Check the voltage at each terminal for normal operation

Abnormal Condition

- If the voltage at power and motor

unit will be no power

Go to the next page for more procedures.

Check the terminal block of customer outlet if the voltage is wrong Normal : AC 110V ~ 120V

L2 N L1

Normal : AC 110V ~ 120V

L2 N L1

Normal : AC 220V ~ 240V

L2 N L1

Abnormal : O V Abnormal : O V

< Heater > < Power and Motor> < Main Power >

< Heater > < Power and Motor>

- If the voltage at power and motor

unit will be no power

- 8/12 -

Check Point

Symptom Guide - [Dryer] Unit is not Heating

Step 2 Check the Main PBA

Check the Main PBA

- Check the voltage at Black wire of RY7 and

Brown wire of CN1

- The voltage will be approx. AC 1.5V~3V during

standby and changed as the next following pictures.

- It is normal condition of voltage change during heater operation. - It is abnormal condition of voltage during heater operation.

Replace PBA Check the Assy Heater element. (Refer to next page)

Standby : AC 1.5 ~ 3V

Abnormal Condition : Approx. AC 5V 112V

Normal Condition : Approx. AC 116V 112V

RY7 CN1

- 9/12 -

Check Point

Symptom Guide - [Dryer] Unit is not Heating

Step 3 Check the Assy Heater

Check the Heater

- Switch the meter to continuity mode to check heater

If it sends out beeping sounds, Heater is ok .

Check the thermostat 2

- Switch the meter to continuity mode to check the

thermostat 2

If it sends out beeping sounds, Thermostat2 is ok.

Check the thermostat 3

- Switch the meter to continuity mode to check

thermostat 3

If it sends out beeping sounds, Thermostat3 is ok.

Replace Assy Duct Heater

If there is no continuity

(Part Code : DC93-00154A) Replace thermostat 2

If there is no continuity

(Part Code DC47-00018A) Replace thermostat 3

If there is no continuity

(Part Code DC47-00015A)

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Check Point

Symptom Guide - [Dryer] Unit is weak heating

Step 1 Check the condition of dryer

Clogged dryer vents or lint filter are the leading cause

of weak heating

Check whether the vent is blockage by following

procedures

Enter to temperature display mode,

Run time dry cycle without vent.

Check the temperature inside of drum with

thermometer whether the temp go up to 60 (140)

How to enter Temperature display Mode

- Press Adjust time+ Adjust time for 10 seconds

during power is on until it sends beeping sounds,

And then, press Temp key until Number 5 is display.

(Number 5 is temperature data)

Unit is normal If the temperature is over than 60 on the display or 100 with measuring by thermometer. Touch the surface on drum whether it is warm. How to enter Temp display mode by Model. - DV42H5**,45H6**, 56H91**, 56H9*** Adjust time+ Adjust time - DV400,DV422**,456**, DV50F**, DV45H7***,48H7*** : Adjust + Wrinkle prevent - Temp Key is common

Check whether the lint filter is clogged with lint

Clean the lint filter.

39.6

120 60

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Check Point

Symptom Guide - [Dryer] Unit is not Spinning

Check the drum in Dryer Condition

- Check drum is stuck due to deformation

by turning the drum in CC.

- Check if the Belt is properly secured

Replace Assy Drum Adjust or Replace the Belt

Step 2 Check Main PBA

Check the Main PBA

- Check the voltage at Brown wire of RY6 and

Brown wire of CN1

- The voltage will be approx. AC 0V during standby

and changed as the next following pictures.

Replace Main PBA

If it is abnormal condition.

Normal Condition : Approx. AC 0V 118V 114V

Abnormal Condition : Approx. AC 5V 118V 118V

RY6 CN1

- 12/12 -

Check Point

Symptom Guide - [Dryer] Unit is not Spinning

Step 3 Thermostat on Assy Duct Motor

Check the thermostat on Assy Duct Motor

- Check the heater by continuity mode.

(Most Common Issue regarding all of dryer)

Replace the Thermostat If there is no continuity (Part Code DC47-00016A)

Step 4 Micro S/W (Cut-off SW) on Assy Duct Motor

Check the Micro S/W on Assy Motor

- Check the Micro S/W by continuity mode

during idler is engaged

Replace the Micro S/W

If there is no continuity

(Part Code : 3405-001077)

Step 5 Centrifugal S/W on Assy Motor

If All steps were normal, it is highly likely that

centrifugal s/w is defective

Replace Assy Motor

Idler is engaged

Short Open

Centrifugal S/W

Motor standby Motor Activation Pin Number

Idler is disgaged