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Troubleshooting _ 25

4-3.  CORRECTIVE ACTIONS FOR EACH ERROR CODE

►  These are common troubleshooting procedures for each drum-type washer error mode. For detailed information, 

 

refer to the general repair scripts.

Error Type

Error 

Mode

Causes

Corrective Actions

Description of Photo

Water Level 

Sensor

1C

•  Water level sensor 

fault

• Incorrect 

connections of the 

water level sensor 

terminal

•  The hose part for the 

water level sensor is 

folded.

•  Main PCB fault

Check the water level sensor 

terminal connections and 

contacts.

An error occurs if an incorrect 

water level sensor is used. 

Make sure to check the 

material code. 

 

(Abnormal operation)
If the water level sensor is 

faulty, replace it.
If the error persists despite 

taking the action above, 

replace the PBA.

Check the water level sensor 

frequency.

-  Check it after the water 

level sensor and the 

connector are connected.

 Checking Part : 

 

Pink Color Wire Orange 

Color Wire.

   - Frequency : 

 

Approx. 25.5 KHz with 

no load

Washing Motor 

Error and Hall 

Sensor Error

3C

•  Washing motor fault

•  Washing motor hall 

sensor fault

• Incorrect 

connections of the 

washing motor/hall 

sensor connector

•  Washing motor rotor 

and stator fault

•  Main PCB fault

Check the motor connector 

terminal connections and 

contacts.

3E is displayed because 

overloading occurs due to too 

much laundry.
If the hall sensor terminal is 

faulty, replace the hall sensor.
Check whether the stator of the 

motor cover is damaged.
Check for coil disconnections 

due to foreign material.
If the PBA control circuit is 

faulty, replace the PBA.

►  Check the motor Winding 

Coil

Plug out the connector and 

read resistances at any two 

of the three terminals on 

Motor  

: Should be 6.0 Ω (at 25°C)

►  Check the motor Hall 

Sensor 

Check the resistance on the 

main PCB motor  

(Between pins 1 and 3, and 

1 and 4 of the four (4) pins)

- Resistance 

 

: Approx. 2 to 4 MΩ

-  Check the voltage when 

the power is on.

Communication 
Error

AC

•  The signals between 

the sub and main 

PBAs are not 

sensed.

•  Incorrect wire 

connections between 

the sub and main 

PBAs.

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 main PBA’s 

communication circuit is faulty, 

replace it.

-

Door Error

DC

•  Door switch fault

•  Main PCB fault

If a dS error occurs, check 

whether it occurs during the 

Boil cycle.
-   If it is detected that the door 

is open, close the door.

The 120V is directly connected 

to the door. 

 

Check and repair the power 

wire connections and 

insulation state.
Check the door switch. 

Replace if faulty.
Check the main PBA door 

sensing circuit. Replace if 

faulty.

►  TYPE 1

Check the door switch 

Resistance.

The resistance of 1 and 3 

Pin Must be approximately 

175Ω.

DC1

Summary of Contents for WF45M5500A series

Page 1: ...WF45K6500AV A2 WF6500K PROJECT Model Name WF45N5300AV WF45N5300AF WF45N5300AW Model Code WF45N5300AV US WF45N5300AF US WF45N5300AW US WF5300N 1 Safety Instructions 2 Features and Specifications 3 Disa...

Page 2: ...sembly 9 3 2 Standard disassembly drawings 10 4 Troubleshooting 21 4 1 Error modes 21 4 2 Test Modes 24 4 3 Corrective actions for each error code 25 5 PCB diagram 28 5 1 MAIN PCB 28 5 2 Circuit diagr...

Page 3: ...to disconnect the power plug before servicing 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 Th...

Page 4: ...not press a control button using a sharp tool or object 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 ca...

Page 5: ...ctric leakage AFTER SERVICING Check the wiring Ensure that no wire touches a rotating part or a sharpened part of the electrical harness Check for any water leakage Perform a test run for the washing...

Page 6: ...tlet and measure 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 Check whether the...

Page 7: ...ical detergents Stylish Design The stylish design of this washer blends well with your environment Premium Ergonomic Design A premium design provides an ergonomic and sophisticated look to complement...

Page 8: ...A High Overall 38 7 984 B Width 27 686 C Depth with door open 54 6 1 386 D Depth 34 864 Water pressure psi kPa 20 116 137 800 NET Weight lb kg 218 99 Spin revolution 1 300 rpm Heater rating 900 W Hea...

Page 9: ...Spec Motor Type DD Motor DD Motor DD Motor MAX RPM 1200 1200 1200 VRT Yes Yes Yes Heater 900W Yes Diamond Drum Yes Yes Yes Washing Cycle 10 8 8 Delay Wash Yes Yes Yes Tilted Drum 5 5 5 Sound Pressure...

Page 10: ...C68 03672A 1 Default CAP FIXER DC67 00307A 6 Default HOSE HANGER DC62 10278A 1 Default Note Customer can purchase additional water supply and drain hoses from a service center The spanner wrench water...

Page 11: ...otor 1 Balance 5 2 holes of each left and right of the shock absorber 1 Pulley hole Open End wrench 10mm 13mm 19mm Replaceable for the box driver Since the bolt runs idle when the box driver is used u...

Page 12: ...separate the Rotor Since removing the rotor requires a lot of strength due to the magnetic force of the Rotor and it may come off suddenly your hand or arm may be injured by the edge of the Stator or...

Page 13: ...ing the navel of the Housing 3 Pull the Assy Thermistor from Tub Back When disassembling Assy Thermistor leave the rubber packing CAUTION OK NG OK NG Gap 1 When assembling Assy Thermistor push to the...

Page 14: ...the COVER TOP by sliding it backwards 3 Press the Separate button to separate the ASSY DRAWER 4 Pull the PANEL CONTROL towards and then lift it upwards to separate 5 Carefully disconnect the two wirin...

Page 15: ...rightwards 3 Remove the 2 screw and 2 Connectors for separating Guide Wire T 4 Push the TUB upside to separate ASSY PCB MAIN and separate the ASSY PCB MAIN lifting it up 5 Separate the 3 Hooks 6 Disc...

Page 16: ...VER DOOR including the 3 arrow screws holding the HINGE DOOR 4 Putting and pressing hard a flat head screwdriver into the furrow between COVER DOOR and SUPPORT HINGE 5 Making a semicircle with screwdr...

Page 17: ...g along the circle 2 Remove the 2 screws to separate the DOOR LOCK S W 3 Remove the 5 screws at the top of FRAME FRONT 4 Push the lever and pull it towards to open the COVER FILTER 5 Separate the rema...

Page 18: ...to the valves Use the plier to remove the hose Disassembling and Repairing the Water Level Sensor 1 Separate the wire connected the SENSOR PRESSURE 2 Adjust the plastic clip of pressure sensor between...

Page 19: ...p of the hose connected to the PUMP and then pull the HOSE AIR 4 Separate the Clamp of the hose connected to the PUMP and then pull the HOSE DRAIN 5 Separate the wire connected to the PUMP Removing th...

Page 20: ...FRAME PLATE U 2 Remove the 6 bolts fixing WEIGHT BALANCER and then pull it towards with caution 3 Remove the 4 bolts fixing DAMPER to take ASSY TUB out 4 Remove all wire and hose connected the ASSY T...

Page 21: ...he upper ASSY DRUM disassemble the ASSY FLANGE SHAFT 2 Remove 12 screws from the outer sides and then remove the two upper and lower BALL BALANCERS 3 Remove 3 screws from the outer sides and then remo...

Page 22: ...aged it may cause a problem Therefore unfasten the nut using spanner or wrench manually without using pincers or tweezers When you re assembly the heater make sure to install the Heater exactly onto t...

Page 23: ...rs because of restrained revolutions This error occurs when an interference is generated due to too much laundry etc Water Supply Error 4C Foreign material is entering the water supply valve The water...

Page 24: ...ck for incorrect or loose connections etc Remove the Inverter PBA and Check for any faulty soldering Switch Error Main Relay Error BC2 A switch is jammed or stuck due to be pressed unevenly due to def...

Page 25: ...his error occurs because the water level sensor terminal is out of place Temperature Sensor Error TC1 The washing heater sensor in the tub has an error Contact error or temperature sensor fault The co...

Page 26: ...on of dehydration 3 carryouttestforoperation of preparatoryvalve 9 carryout test foroperation of drying heaterand drying fan Co carryouttestforoperation of coldwatervalve 10 carryout test foroperation...

Page 27: ...rloading occurs due to too much laundry If the hall sensor terminal is faulty replace the hall sensor Check whether the stator of the motor cover is damaged Check for coil disconnections due to foreig...

Page 28: ...or connection between wire and heater If wash heater is faulty replace it Refer the TYPE 1 If it is not problem in heater replace wash thermistor Refer the TYPE 2 FRONT A B TYPE 1 Check the resistance...

Page 29: ...tions of the dry condensing sensor Main PCB fault Freezing in the winter season Check the connections for the washing heater temperature sensor connector If the washing heater temperature sensor has a...

Page 30: ...nnection Port Supply power to the MEMS PBA and provides a communications function Location Part No Function Description 5 CNS502 Sensor Connection Port Supply power to the sensor and provides a commun...

Page 31: ...ns signal 13 Ground CN10 1 Drain pump 2 Circulation pump 3 Door unlock 4 Door lock 5 Thermo Actuator 6 Cold_valve 7 Hot_Valve 8 Pre_Valve 9 Dry_Valve 10 Water_Shot PIN Location 10 9 8 7 6 5 4 3 2 1 CN...

Page 32: ...ation Part No Function Description 1 CN1 Communication Communication with MAIN 2 CN2 Hall Sensor Sensing Hall signal 3 CN6 Motor Output MOTOR 3 Phase Output 4 CN5 AC Power Source Supply AC Power 4 3 2...

Page 33: ...MAIN PARTS FOR INVERTER PCB CN1 1 MAIN Communications signal 2 MAIN Communications signal 3 Ground CN2 1 5V 2 HALL A sensor signal 3 HALL B sensor signal 4 Ground CN6 1 Motor signal U 2 Motor signal...

Page 34: ...und when the menu key is pressed or the encoder is operated the menu is closed 2 CN401 FLASH WRITING Writing Programme to SUB 3 CN201 PBA Communication Port PBA Communication Port between MAIN and SUB...

Page 35: ...GRAMS OF MAIN PARTS FOR SUB PCB CN201 1 Communications Port Rx 2 Communications Port Tx 3 Reset Signal input 4 5V 5 GROUND 6 12V 7 Empty Pin 8 Power_SW 9 Water level Signal 10 Empty Pin CN402 1 12V 2...

Page 36: ...7 REACTOR Location Part No Function Description 1 INDUCTANCE 1 5mH 15 1KHz 1V HP 4194A 0 1V 25 2 2 DC RESISTANCE 0 07 20 HIOKI 3540 25 2 3 V_L 3 6V 15 4 WITHSTANDING VOLTAGE AC 1 800V 1 SEC TOS 5101 C...

Page 37: ...m _ 35 6 WIRING DIAGRAM 6 1 WIRING DIAGRAM WF45M5500A WF45M5100A n REFERENCE INFORMATION BLK BLACK BLU BLUE GRN GREEN GRY GRAY NTR NATURAL ORG ORANGE PNK PINK RED RED SKYBLU SKYBLUE VIO VIOLET WHT WHI...

Page 38: ...45 5 0 cuft 50 7 WF7500K 6 WF6500K 5 WF5500M Region A N America L L America E Euro R CIS M M E Asia F Africa S S E Asia H India C China J Japan K Korea G Global Color W WHITE G Gray S SILVER V Black Z...

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