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LG DLEC855R, Service Manual

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LG DLEC855R Service Manual Download Page 25

DIAG O STIC TEST

1 1

2 4

Test 2 DOOR SWITCH / LAMP CHECK 

Trouble Symptom : Malfunction of lamp operation and door switch 

No operation of pump motor
Displays “      “ in case of the door closed. 
The door must be closed and start.

Measurement condition : Check if they are working while being connected to power supply.

Wiring
Diagram

Check Point

https://appliancetechmanuals.com

Summary of Contents for DLEC855R

Page 1: ...CONDENSING DRYER SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE CORRECTLY BEFORE OFFERING SERVICE MODEL DLEC855W DLEC855R https appliancetechmanuals com ...

Page 2: ...FEB 2009 PRINTED IN KOREA P No 3828EL9001M https appliancetechmanuals com ...

Page 3: ...emoved for service they must be returned to their original position and properly fastened IMPORTANT Electrostatic Discharge ESD Sensitive Electronics ESD problems are present everywhere ESD may damage or weaken the electronic control assembly The new control assembly may appear to work well after repair is finished but failure may occur at a later date due to ESD stress Use an anti static wrist st...

Page 4: ... 6 4 PROGRAM CYCLE 7 5 INSTALLATION INSTRUCTIONS 11 6 MAINTENANCE INSTRUCTIONS 13 7 COMPONENT TESTING TIPS 15 8 CONTROL LAY OUT 17 9 WIRING DIAGRAM 18 10 TROUBLESHOOTING 19 11 DIAGOSTIC TEST 22 12 DISASSEMBLE INSTRUCTIONS 36 13 EXPLODED VIEW 41 https appliancetechmanuals com ...

Page 5: ...Thermostat Micom electronic Control 1 Temperature 2 thermistors 2 Humidity Electrode Sensor Removable 52 54 rpm Stainless steel Available Available Available Available Available Available Available Available Available DRYING TYPE WEIGHT DIMENSION CONTROL TYPE POWER SUPPLY MOTOR HEATER LED LAMP DOOR SWITCH THERMOSTAT CONTROL TYPE DRUM CAPACITY SAFETY DEVICES SENSING TYPE FILTER DRUM SPEED DRUM DRYE...

Page 6: ...ir flow mechanism and optimized heater Innovative noise performance Noise gets reduced by Noise absorption screening technology Easy of Use Wide LED display using electric control Control Panel DLEC855W DLEC855R save save Energy 5 Program Selector Additional Function Buttons MORE TIME LESS TIME OPTION BEPPER TIME DELAY CUSTOM PGM WRINKLE CARE DRUM LIGHT Drying Level DAMP LESS NORMAL MORE VERY LED ...

Page 7: ...Rack Assembly 3 Stacking kit Assembly Purchased Seperately 1 Accessory parts Holder 2EA Screw 4EA Purchased Separately Holder 2EA Screw 4EA Purchased Separately 2 DLEC855W DLEC855R Control Panel Water Container Glass Door Air Ventilation Grill Condenser Cover https appliancetechmanuals com ...

Page 8: ...the display 4 Press and hold the CUSTOM PGM button for 3 seconds To Recall a Custom Program 1 Turn on the dryer 2 Press the CUSTOM PGM button 3 Press the START PAUSE button to start the cycle WRINKLE CARE WRINKLE CARE is functioning to prevent creases and wrinkles that are formed when the laundry is not unloaded promptly at the end of drying cycle In this function the dryer repeatedly runs and pau...

Page 9: ...is option only is used with the COTTON and MIXED FABRICS cycles DAMP DRY BEEP This is a function to inform when is the most suitable for ironing with beeper sound This option only is used with the COTTON and MIXED FABRICS cycles You can not use the DAMP DRY BEEP when you select iron drying level CREASE CARE This is a function to reduce wrinkles This is a function to set up automatically when you o...

Page 10: ... be ironed MIXED FABRICS Bed linen table linen tracksuits anorak blankets For thick and quilted fabrics which do not need to be ironed MORE A kind of linen and towel except for the special fabrics For the small loads of qualified fabrics with short drying times Shirts blouses For fabrics which do not need to be ironed NORMAL Trousers dressers skirts blouses For fabrics which do need to be ironed D...

Page 11: ... O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O X X X X X X X X O O X X X X O O O O X O O X X X X X X X X O O O O O O O O O O O O O O O 125 120 115 103 97 53 48 41 50 40 40 45 30 21 60 LESS TIME MORE TIME GENTLE COTTON MIXED FABRICS MANUAL DRY SPECIAL FABRICS QUICK CREASE CARE BEEPER TIME DELAY WRINKLE CARE LEFT TIME CUSTOM PGM DAMP DRY BEEP https appliancetechmanu...

Page 12: ...eling legs up and down as necessary Turn them clockwise to raise and counterclockwise to lower until the dryer is not wobbling both front to back and side to side Dryer is raised Dryer is lowered Adjustable Feet Adjustable Feet Adjustable Feet Diagonal Check When pushing down the edges of the machine the machine should not move up and down at all Please check both of two directions If machine rock...

Page 13: ...ape to the washer by pressing hard 23 6 inch 600 mm 21 7 inch 550 mm 4 Assemble a stacking kit as following Screw 2 screws which were removed earlier to assemble dryer and stacking kit Use accessory screws to assemble washer rear cover and stacking kit The procedure for the opposite side will be the same Support Holder Dryer Washer Shape 23 6 inch 600mm Washer Top plate size 21 7 inch 550mm Suppor...

Page 14: ...rt is to remove the build up of lime scale on the surface of sensor Wipe the sensors inside drum Shown in the picture Condensed Water Drain out Normally condensed water is pumped up to water container where water is collected until emptied Not only using water container but water can be drained out directly to drain hose especially when dryer is stacked on top of washing machine With connecting ki...

Page 15: ... Now insert new LED Lamp Cover assembly from inside and pull the connector and its wire toward outside through the hole at same time rotate the lamp cover in clockwise direction till it stops to rotate 7 Screw the screw taken out during disassembly 8 Adjust the Wire through the hooks and Connect the red connector 9 Assemble the control panel Drawer and Top plate 2 Disconnect the Red Connector 3 No...

Page 16: ...nal Measure resistance of Terminal to terminal 1 Thermostat Manual type 2 Thermistor Low temperature 3 Heater Thermistor 4 Motor Measure resistance by pressing button When resistance becomes Resistance value 5Ω Resistance value 10KΩ 5 at 25 C Resistance value Yellow White 28 96 1Ω Blue White 56 29 2Ω Resistance value 200KΩ 5 at 25 C Resistance value 20 White Blue 24 8 2 5Ω Blue Orange 21 5 2 0Ω Me...

Page 17: ... Measure resistance of the Following terminal 1 Door switch knob open 2 Door switch push Push DC 12V LED LAMP 8 Lamp holder 7 Door S W Resistance value 1Ω Resistance value Resistance value Resistance value 1Ω Terminal COM NC 1 3 Terminal COM NO 1 2 Terminal COM NC 1 3 Terminal COM NO 1 2 1 2 1 2 1 2 1 2 https appliancetechmanuals com ...

Page 18: ...L PWB ASSEMBLY DISPLAY LAY OUT PWB ASSEMBLY MAIN LAY OUT P NO EBR50559203 OPTION PART DLEC855W DLEC855R DP1 X DP2 X DP3 X DP4 X DP5 X DP6 X O Option diode DP applied X Option diode DP not applied https appliancetechmanuals com ...

Page 19: ...N NOISE FILTER PUMP 2 TH2 3 2 5 2 SENSOR BLUE OUTER 1 ORANGE COIL 750W 3 BLUE BLUE 1 BLUE NA4 1 BLUE BROWN BROWN SKY BLUE SKY BLUE 4 BLACK RED WHITE THERMOSTAT HEATER 4 THERMISTOR BLACK WHITE RLY1 RLY2 1 RD2 LAMP RED BLACK 2 3 1 3 YL3 X1 2 1 3 2 3 1 2 3 1 PINK WHITE DOOR SWITCH MOTOR 2 SKY BLUE 1 3 2 1 3 ORANGE BLUE WHITE BL3 2 3 1 2 3 1 RLY3 L2 L1 N G https appliancetechmanuals com ...

Page 20: ...ta Custom PGM More time High thermistor temp data Wrinkle Care More time 1 2 3 Data of pump Drum light More time 4 Motor Frequency Custom PGM Option 5 Motor Duty Wrinkle Care Option 6 Count of pulse min Drum light Option 7 Display No No of Button pressing None Check LED lamps Motor run clockwise Humidity data Moisture Pulse Width time 100ms normal 1 Increase Moisture Pulse count normal 1 Increase ...

Page 21: ... Low temperature thermistor connector not inserting Main PCB Micom not soldering Check the white 8 pin housing No 3 4 in main PCB And Check the high temperature thermistor connector in rear cover part blue wire Check breaking the belt of motor assembly or binding the motor Splay thermistor symptom Display tE 1 tE 3 LE Check point Symptom Low temperature thermistor open High temperature thermistor ...

Page 22: ...eck Filter sign glitters Empty water sign See the Page 24 check list Plugged in Power button Lock No Beeper Circuit breaker trip Harness Wire broken Display pcb wire broken Low voltage Led broken Low temperature Replace Belt Clean filter and Condenser Empty water container Over clothes Load Motor malfunction Thermostat trip Check thermistor open short Fan Lamp Broken Connector malfunction Rotating...

Page 23: ... CHECK Trouble Symptom No power to the dryer or the controller Measurement condition Power is on Caution Electric shock Please test after grounding check DIAGOSTIC TEST 11 22 Wiring Diagram Check Point https appliancetechmanuals com ...

Page 24: ...lling Black 2 pin RLY1 Yellow YL3 3 pin connector out from controller Check the range of two pin Red Black is within AC 110V 125V Check connection of power cord and harness assembly Check Terminal block 2pin White wire Terminal block 1 3pin Red Black wire of connector and secure that range is between AC 110V 125V Check the short of harness assembly and the connection RLY1 YL3 In the case that the ...

Page 25: ...on of lamp operation and door switch No operation of pump motor Displays in case of the door closed The door must be closed and start Measurement condition Check if they are working while being connected to power supply Wiring Diagram Check Point https appliancetechmanuals com ...

Page 26: ...r supply When door is closed lamp turns off When Start button is on the dryer is working When door is opened lamp turns on Tumbling stops When door is opened or closed door switch hook is not broken Check or replace Controller Assembly Replace Harness and connector With door closed check voltage of connector RLY1 YL3 which are pulled out from controller in advance The voltage range is between AC 1...

Page 27: ...surement condition Power cord is unpluged Door is closed Check the user condition Put over load into drum Normally Input Voltage and Hertz Pre Check door switch If door switch has contact problem pump motor is not working DIAGOSTIC TEST 11 26 Wiring Diagram Check Point https appliancetechmanuals com ...

Page 28: ...heck the harness connection Motor part Blue 3 pin housing Controller part Blue 3 pin housing Orange and Blue wire Check the belt position broken Check the Controller TR1 TR2 Broken Check the slide 3 ea Check belt is burst Check structural restriction Motor supporter Air guide Blower Check or replace Motor Check Motor TP Check Harness connection Check the Motor resistance see page 15 Measurement co...

Page 29: ...le Symptom Heater is not working Drying failure The designated temperature is not reached Measurement condition Power cord is unplugged Trouble Symptom Motor malfunction ventilation error 1 Wiring Diagram Check Point https appliancetechmanuals com ...

Page 30: ...LY3 Blue resistance ranges 53Ω 59Ω Check and replace controller Relay RTY2 RTY3 See page 15 PCB assembly lay out 1 2 RLY3 RLY2 1 1 RLY3 RLY1 When check thermostat to Heater it is less than 1Ω Replace Heater Check Harness connection Check or replace Controller Assembly Replace Harness and connector 1 Clean Condensing unit 2 Check if Lint filter is damaged or clogged Trouble Symptom Motor malfunctio...

Page 31: ...mptom Check if pump is out of order Empty water signals Measurement condition Power cord is unplugged Check the hose blocked with foreign body or twist DIAGOSTIC TEST 11 30 Wiring Diagram Check Point https appliancetechmanuals com ...

Page 32: ... Pump Check foreign objects Check impeller restriction Check connection hose clogged Measure after power is off With YL3 disconnected from Controller YL3 YL3 resistance ranges 205 10Ω Check or replace pump Check Harness connection Check Pump sensor Check and replace Controller TR3 Measure with power on On QC test mode when Pump is on Electric noise doesn t occur while pumping 1 2 https appliancete...

Page 33: ...Test 6 Thermister check Trouble Symptom Poor drying performance over drying or no drying Abnormal thermistor operation Measurement condition Power cord is unplugged Wiring Diagram Check Point https appliancetechmanuals com ...

Page 34: ...heck disconnected Housing or severed Wire 2 Check the resistance of thermistor 3 Replace controller and then recheck if anything else occurs Test 6 Thermister check 4 3 2 NA4 NA6 1 1 2 3 4 5 6 Replace the thermistor of heater Replace the low temperature thermistor 1 3 2 4 When measuring resitance of Heater thermistor It range table data When measuring resitance of Low temperature thermistor It ran...

Page 35: ...Test 6 Moisture sensor check Trouble Symptom Drying Failure Measurement condition Power cord is unplugged DIAGOSTIC TEST 11 34 Wiring Diagram Check Point https appliancetechmanuals com ...

Page 36: ...bjects Refer to the left picture 4 3 2 NA4 1 With metal tape attached to Sensor tips NA4 NA4 resistance is less than 10Ω Check Harness Open Connector is disconnected After damp clothes touch Sensor tips the range are changeable when QA test Check and replace Controller With NA4 disconnected from Controller NA4 NA4 resistance is unlimited 2 4 2 4 https appliancetechmanuals com ...

Page 37: ... top plate by unscrewing 2 screws on the rear of the dryer 2 After pulling drawer assembly out and unscrew 2 screws 3 Disassemble control panel by unscrewing 2 screws on the Rear of the panel frame DRAWER TOP PLATE https appliancetechmanuals com ...

Page 38: ...nscrewing 2 at the top and 3 at the rear Left and right are the same 6 Disassemble panel frame by unscrewing 4 at the front 4 Disassemble the lower cover by pulling to the front 2 n d P u l l 1st Pull CABINET DRAWER PANEL FRAME https appliancetechmanuals com ...

Page 39: ... pulley 7 1 Disassemle the door by releasing the 2 screws 7 2 Disassemble the door switch 7 3 Disassemble the cabinet cover by releasing the 10 screws 7 4 Disassemble the Door Switch 7 5 Disassemble the cover cabinet CABINET COVER DOOR Pull DOOR SWITCH P u l l 1 2 https appliancetechmanuals com ...

Page 40: ...y 10 Disassemble the housing of motor heater pump and capacitor 11 1 Disassemble the hose 11 2 Disassemble the Holder from cover rear 11 3 Disassemble the hose 11 4 Releasing the dispenser by unscrewing 1 screw 9 Disassembling the side frame by releasing 4 screws 1 2 3 2 PUMP HOUSING MOTOR HOUSING DISPENSER 3 https appliancetechmanuals com ...

Page 41: ...y releasing the 7 screws 12 2 Release the durum nut using tool 12 3 Disassemble the air guide by releasing the 1 screw 13 1 Disassemble the COVER REAR by releasing the 2 screws 13 2 Disassemble the drum DUCT COVER REAR AIR GUIDE https appliancetechmanuals com ...

Page 42: ...EXPLODED VIEW Control Panel Top plate Assembly A150 A120 A160 A140 A130 A111 A110 A113 A112 A100 A114 41 https appliancetechmanuals com ...

Page 43: ...EXPLODED VIEW 42 Cabinet Cover Door Assembly B103 Transparent door B109 B100 B125 B121 B120 B140 B130 B150 B122 B127 B101 B102 B106 B107 B124 B135 B215 https appliancetechmanuals com ...

Page 44: ...EXPLODED VIEW Base Motor Assembly C130 C290 C160 C140 C150 C165 C230 C240 C210 C200 C180 C120 C142 C300 C250 C240 C230 C330 C310 C320 C340 C205 C100 C110 C255 C170 43 https appliancetechmanuals com ...

Page 45: ...EXPLODED VIEW 13 44 Back Cover Drum Assembly D120 D100 D110 D122 D121 D130 D151 D175 D210 D200 D150 D152 D157 D156 D260 D263 D170 https appliancetechmanuals com ...

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