LG RC8011 Series, Service Manual

Page 1: ...CONDENSING DRYER SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE CORRECTLY BEFORE OFFERING SERVICE MODEL RC9011 RC8011 Series ...

Page 2: ...JUL 2008 PRINTED IN KOREA P No 3828EL9001K ...

Page 3: ...to ground are removed 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 ...

Page 4: ...T IDENTIFICATION 6 4 PROGRAM CYCLE 7 5 INSTALLATION INSTRUCTIONS 10 6 MAINTENANCE INSTRUCTIONS 12 7 COMPONENT TESTING TIPS 14 8 CONTROL LAY OUT 16 9 WIRING DIAGRAM 17 10 TROUBLESHOOTING 18 11 DIAGOSTIC TEST 21 12 DIASSEMBLE INSTRUCTIONS 28 13 EXPLODED VIEW 33 ...

Page 5: ...e Available Available TIME DISPLAY RUNNING STATUS INDICATOR EMPTY WATER CLEAN FILTER Condenstation 45 kg Gross 50 kg 595 W x 850 H x 600 D 9 0 kg Electronic Control AC 220 230V 50Hz 16A 210W 2500W DC12V 30mA 250V 5A 240V 25A Electronic 125 Liter Thermal Fuse Motor Over current protect Motor Thermostat Micom electronic Control 1 Temperature 2 thermistors 2 Humidity Electrode Sensor Removable 52 53 ...

Page 6: ...g time is shortened by efficient air 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 RC9011A B C RC8011A B C save save Energy 5 Program Selector Additional Function Buttons More Time Less Time Option Buzzer Time Delay Favourite Anti Crease Drum Light Drying...

Page 7: ... 2 Dryer Rack Assembly 3 Stacking kit Assembly Purchased Seperately 1 Accessory parts Holder 2EA Screw 4EA Purchased Separately Holder 2EA Screw 4EA Purchased Separately 2 RC9011A1 B1 C1 RC8011A1 B1 C1 Control Panel Water Container Glass Door Air Ventilation Grill Condenser Cover ...

Page 8: ...d on your own drying habit use Favourite Once favourite cycle is stored you can repeatedly use next time before changing the stored setting For instance you turn power on and select Extra Dry in Cotton Cycle and Low temp and Anti Crease in series and then lastly press Favourite until the dryer beeps It s about 3 seconds That s all you have to do The next time when turning the dryer on and pressing...

Page 9: ... ironed For thick and quilted fabrics which do not need to be ironed For fabrics which do not need to be ironed For fabrics which do need to be ironed For the small loads of qualified fabrics with short drying times For wool fabrics For fabrics which are heat sensitive like synthetic fabrics For 100 polyester material For bulky items Small clothes pre dried laundry Normal fabrics using hot tempera...

Page 10: ... O O X X X X X X X 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 O O O O O X X X X X X X X O O X X X X O O O X 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 Hand Iron Cotton Mixed Fabrics Timed Drying Special Fabrics Quick Crease care Buzzer Time Delay Anti crease Left Time Favourite...

Page 11: ...t the front leveling 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 ...

Page 12: ...After detaching protection sheet of double side tape align stacking kit holes rear cover holes and then attach tape to the washer by pressing hard 4 Assemble a stacking kit as following Screw 2 screws which is unscrewed earlier to assemble dryer rear back and stacking kit Use accessory screws to assemble washer rear cover and stacking kit The procedure for the opposite side will be the same 2 Unsc...

Page 13: ...leaning this part 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 Wit...

Page 14: ... 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 9 Assemble the control panel Drawer and Top plate 8 Adjust the Wire through the hooks and Connect the red connector 3 Now take the wire of Lamp Cover Assembly out of the hooks as shown in picture DO NOT...

Page 15: ...al Measure capacitance of Terminal to terminal Measure resistance of Terminal to terminal Measure resistance by pressing button When resistance becomes Resistance value 5Ω Safety Thermostat Cover Front Heater 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 Blue White 15 3 7 Ω Red White 18 5 7 Ω Capacita...

Page 16: ... open condition 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 ...

Page 17: ...EL PWB ASSEMBLY DISPLAY LAY OUT PWB ASSEMBLY LAY OUT P NO EBR50559201 OPTION PART RC8011 RC9011 DP1 X DP2 X DP3 X DP4 X DP5 X DP6 X EBR50559202 RC8011 RC9011 O Option diode DP applied X Option diode DP not applied X X O X X X ...

Page 18: ...WIRING DIAGRAM 9 17 ...

Page 19: ...ng Level glitter All the LED s on All the LED s on Off Displays Moisture Sensor Operation If moisture sensor is contacted with damp cloth The display number is below 180 in normal condition Motor run clockwise Displays Moisture Sensor Operation If moisture sensor is contacted with damp cloth The display number is below 180 in normal condition Motor run clockwise Heater run Display the temperature ...

Page 20: ... Main PCB Micom not soldering Check the main PCB red 4 pin housing Short of Blue harness in Red 4 pin Low temperature thermistor short check the resitance see 15 page Main PCB Micom short replace Main PCB 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 splay thermistor symptom Display tE 1 tE 2 tE 3 Check point Sympt...

Page 21: ...lothes Load Motor malfunction Low temperature Harness Wire broken Led broken Display pcb wire broken Power button Lock No buzzer Circuit breaker trip Low voltage Led Segment On Drum not Roating Door Open Rotating Lamp on Lamp Broken Connector malfunction Check Heater Power Thermostat trip Check thermistor open short Fan Properly Drying See the Page 24 check list Replace Belt Clean filter and Conde...

Page 22: ... Check or replace the power cord Check the WH2 Pin Check after pulling Black 2 pin and WH2 connector out from controller Check the range of black pin Black pin WH2 pin is within AC 215 245V Check connection of power cord and harness assembly Check WH2 pin Black pin of connector and secure that range is between AC 215 245V Check the short of harness assembly and the connection In the case that the ...

Page 23: ... page Measurement condition Check if they are working while being connected to power supply When door is closed lamp turns off When Start button is pressed 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 when Start button is pressed ...

Page 24: ...n Motor part Blue 2 pin housing Controller part Blue 2 pin housing Orange and Blue wire Capacitor part White 2 pin housing Check the belt position broken Check the Controller TR1 TR2 Broken Check the slide 3 ea Check Capacitor volume See component test page See the left picture Check belt is burst Check structural restriction Motor supporter Air guide Blower Check or replace Motor Check Motor TP C...

Page 25: ...sistance ranges 26Ω 32Ω 2 RLY1 WH2 pin resistance ranges 53Ω 59Ω Check and replace controller RLY2 WH2 See page 17 PCB assembly lay out When check thermostat to Heater it is less than 1Ω Replace Heater Check Harness connection Manually get Thermostat back Press button 1 Clean Condensing unit 2 Check if Lint filter is damaged or clogged Trouble Symptom Motor malfunction ventilation error Heater On ...

Page 26: ...wist Disassemble 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 ...

Page 27: ...g temperature Check and replace Controller 1 Check disconnected Housing or severed Wire 2 Check the resistance of thermistor 3 Replace controller and then recheck if anything else occurs Replace the thermistor of heater Replace the low temperature thermistor RD4 WH6 2 4 3 4 When measuring resitance of Heater thermistor It range table data When measuring resitance of Low temperature thermistor It r...

Page 28: ...ying Failure Check Harness Check if Sensor tips have foreign objects Refer to the left picture Check Harness Open Connector is disconnected With metal tape attached to Sensor tips RD4 RD4 resistance is less than 10Ω After damp clothes touch Sensor tips the range are within the below table when QA test NO YES YES NO NO Check and replace Controller 4 3 2 RD4 1 With RD4 disconnected from Controller R...

Page 29: ...8 1 Disassemble 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 ...

Page 30: ...le cabinet by unscrewing 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 ...

Page 31: ... as pulling the hook 9 2 Pull out the harness from the housing 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 PUSH PUSH DOOR SWITCH P u l l P U L L 1 2 ...

Page 32: ...LCD display 11 Disassemble the housing of motor heater pump and capacitor 12 1 Disassemble the hose 12 2 Disassemble the Holder from cover rear 12 3 Disassemble the hose 12 4 Releasing the dispenser by unscrewing 1 screw 10 Disassembling the side frame by releasing 4 screws 1 2 3 2 CAPACITOR PUMP HOUSING MOTOR HOUSING DISPENSER 3 ...

Page 33: ...mble the duct by releasing the 7 screws 13 2 Release the durum nut using tool 13 3 Disassemble the air guide by releasing the 1 screw 14 1 Disassemble the COVER REAR by releasing the 2 screws 14 2 Disassemble the drum DUCT COVER REAR AIR GUIDE ...

Page 34: ...EXPLODED VIEW 13 33 Control Panel Top plate Assembly A100 A111 A113 A150 A120 A160 A110 A140 A130 A112 ...

Page 35: ...EXPLODED VIEW 13 34 Cabinet Cover Door Assembly B103 Transparent door B100 B125 B121 B120 B140 B130 B150 B122 B127 B101 B102 B106 B107 B124 ...

Page 36: ...EXPLODED VIEW 13 35 Base Motor Assembly C130 C290 C160 C140 C150 C165 C230 C240 C210 C200 C180 C100 C120 C110 C142 C300 C250 C230 C330 C310 C320 ...

Page 37: ...EXPLODED VIEW 13 36 Back Cover Drum Assembly D120 D100 D122 D121 D130 D157 D151 D170 D210 D200 D180 D156 D150 D152 D140 D110 ...