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LG FH2D7RD Series, Service Manual

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LG FH2D7RD Series Service Manual Download Page 24

24

FOR LG TECHNICIAN

HEATING WITHOUT WATER

DRAIN MALFUNCTIONING

Replace the
S.PRESSURE 
SWITCH ASSEMBLY

Repair the DRAIN 
HOSE ASSEMBLY.

Remove foreign mate-
rial.

Reconnect or repair the
connector.

Repair the DRAIN 
PUMP ASSEMBLY.

Replace the MAIN 
PWB ASSEMBLY

Repair the MAIN PWB
ASSEMBLY.

NO

YES

YES

YES

YES

NO

NO

YES

NO

NO

NO

NO

When pressing Rinse and Spin at the same 
time after draining, is the water level frequency 
255?
When pressing Rinse and Spin buttons at the
same time while washing, is the water level
frequency between 230 - 243 ?

Is the drain hose twisted or frozen?

Is the impeller of the drain pump clogged?

Is the connector disconnected, disassembled?

Is the coil of the drain pump cut-off?

(resistance of coil is 80~150 Ω)

After completely drained and turn off water,
the washing machine is operated under the
[Sanitary] condition.
Check the voatage between two pins is the
Voltage 0 V AC?

When checking voltage between connectors
( 

➀

,  

➁

) on spinning, is the voltage 127V

as the figure?

Summary of Contents for FH2D7RD Series

Page 1: ...WASHING MACHINE SERVICE MANUAL READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES CORRECTLY BEFORE OFFERING SERVICE FOR LG TECHNICIAN MODEL FH2D7RD CAUTION ...

Page 2: ...W TO KNOW TO TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION 15 7 5 ERROR DISPLAY 15 7 6 SMART DIAGNOSIS 17 8 ERROR DIAGNOSIS AND CHECK LIST 18 8 1 DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION 18 8 2 FAULT DIAGNOSIS AND TROUBLE SHOOTING 21 9 DISASSEMBLY INSTRUCTIONS 31 10 EXPLODED VIEW 39 10 1 THE EXPLODED VIEW OF CABINET CONTROL PANEL ASSEMBLY 39 10 2 THE EXPLODED VIEW OF DRUM TUB ASSEMBLY 4...

Page 3: ...ES 5 SPIN SPEEDS 5 OPTIONS Turbowash Time Delay Tub Clean Dry Add Load Time Dry Child Lock WATER CIRCULATION Incorporated OPERATIONAL WATER PRESSURE 14 5 145 psi 100 1000 kPa CONTROL TYPE Electronic WASH DRY CAPACITY 14 kg 8 kg DIMENSIONS 645 mm W X 770 mm D X 940 mm H DELAY WASH up to 19 hours DOOR SWITCH TYPE PTC Solenoid WATER LEVEL 5 steps 5 steps LAUNDRY LOAD SENSING Incorporated ERROR DIAGNO...

Page 4: ...during wash cycle The detergent suds can be removed more easily by the water shower during rinse cycle The water circulation system uses both water and detergent more efficiently 10 Tilted Drum and Extra Large Door Opening Tilted drum and extra large opening make it possible to load and unload clothing more easily Embossing drum waved lifter Embossing drum enhances the washing performance and redu...

Page 5: ...NTROL This model incorporates a pressure sensor which can sense the water level in the tub z The water supply is stopped when the water level reaches the preset level the washing program then z proceeds Spinning does not proceed until the water in the tub drains to a certain level z 2 4 DOOR CONTROL The door can be opened by pulling the door handle whenever washer is not in operation z When the cy...

Page 6: ...sh and Rinse button for z 3 seconds to lock unlock control When Child lock is set CHILD LOCK lights and all buttons are disabled except the Power z button You can lock the washer while it is operating 2 8 WATER CIRCULATION When Washing and Rinsing function of shower at the upper part of Gasket z When Washing it continuously operates for 3 minutes and intermittently z When Rinsing it continuously o...

Page 7: ...Panel Lower Cover Cap Adjustable Feet If the supply cord is damaged it must be replaced by the manufacturer or its authorized service technician in order to avoid a hazard ACCESSORIES Inlet hose 1EA Wrench Elbow Bracket for securing drain hose Non skid pads Caps 4 for covering shipping bolt holes Cold Water Inlet Air Vent for Safety Back of Washer ...

Page 8: ...repair 6 After servicing operate the appliance whether it works OK or NOT STANDARD INSTALLATION The appliance should be installed as follows REMOVE THE TRANSIT BOLTS INSTALL THE APPLIANCE ON FLAT AND FIRM SURFACE ADJUST THE LEVELING Remove the transit bolts z 4EA with supplied spanner Keep the transit bolts and z spanner for future use Insert the 4 caps provided into z the hole 1 2 Turn the leveli...

Page 9: ...ely to prevent leaks z CONNECT THE DRAIN HOSE Make sure that the hose is not twisted z Avoid submerging the end of the hose z The end of the drain hose should be placed less than 100 cm from the floor CONNECT THE DRAIN HOSE Connect the power plug to the wall z outlet Avoid connecting several electric z devices as doing so may cause a fire Cold ...

Page 10: ...he WASH RINSE button and the present temperature will be displayed Power off and the power on Press the SPIN SPEED button Press the START PAUSE button Check the spin and drain functions Check if the drum rotates clockwise and counterclockwise Listen for a click to determine if the door is unlocking Listen for a click to determine if the door has locked Check if water is supplied through the deterg...

Page 11: ...11 FOR LG TECHNICIAN 5 WIRING DIAGRAM PROGRAM CHART ...

Page 12: ...designed for different types of fabric and soil levels This display shows a the estimated time remaining in the cycle when operating b an error code when an error has been detected Use this option to prevent unwanted use of the washer Press and hold Option and Rinse button for 3 seconds to lock unlock control When Child lock is set CHILD LOCK lights and all buttons are disabled except the Power bu...

Page 13: ...ign material Time Dry The drying time can be selcted in 30 minute increments 30 60 90 120 150 minutes Pre Wash Use this option for loads that need pretreatment This adds 16 minutes of prewashing before draining Intensive If the laundry is heavily soiled intensive option is effective Normal This option is automatically selected in every course except for Rinse Spin Light This cycle is suitable for ...

Page 14: ...p button simultaneously Number of times the Start Pause button is pressed Check Point Display Status None Turns on all lamps and locks the door 1 time Tumble clockwise rpm 40 50 2 times Low speed spin rpm 55 70 3 times High speed spin rpm 100 120 4 times Inlet valve for prewash turns on Water level frequency 25 65 5 times Inlet valve for main wash turns on Water level frequency 25 65 6 times No Mo...

Page 15: ...t be turned off ERROR SYMPTOM CAUSE 1 WATER INLET ERROR Correct water level 246 is not reached within 8 minutes after water is supplied or it does not reach the preset water level within 25 minutes 2 IMBALANCE ERROR The load is too small The appliance is tilted Laundry is gathered to one side Non distributable things are put into the drum 3 DRAIN ERROR The sensor pressure switch is out of order 4 ...

Page 16: ... connectors 3 pin male white in the MOTOR HARNESS and 4 pin female white connector in the MAIN PWB ASSEMBLY is bad or unstable The MOTOR HARNESS between the STATOR ASSEMBLY and MAIN PWB ASSEMBLY is cut open circuited The hall sensor is out of order defective 10 DRY HEATER ERROR The Dry Heater is out of order Replace the Dry Heater The Connector of the Dry Heater is not connected properly to the co...

Page 17: ...g the phone mouth piece to the icon or Power button 4 Keep the phone in place until the tone trans mission has finished This takes about 17 seconds and the display will count down the time For best results do not move the phone while the tones are being transmitted If the call center agent is not able to get an accurate recording of the data you may be asked to try again Pressing the Power button ...

Page 18: ...POWER Is the power plug connected firmly to AC 127V outlet YES Power failure or Breaker opened NO Visit to check Water inlet trouble Is displayed YES Is the tap opened YES Is the tap frozen NO Is the water supply shut off NO Is filter in the inlet valve clogged with foreign material YES NO Clean the filter of inlet valve Visit to check ...

Page 19: ...ES NO Avoid overloading Clicking sound is heard once or twice when the START PAUSE button is pressed to start the cycle NO Visit to service Check if the door switch is OK Drain trouble Is displayed YES Is the drain pump filter clogged with foreign material such as pins coins etc YES NO Clean up the filter Is the drain hose frozen kinked or crushed NO Visit to service ...

Page 20: ...n automatic suds sensing function which prevents overflow When excessive suds are sensed the suds removing implementations such as drain water input pause will operate without rotating the drum Liquid laundry products do not flow in Is liquid laundry product put in the correct compartment of the dispenser YES 1 Main Wash Compartment 2 Prewash Compartment 3 Liquid fabric Softener Compartment Is the...

Page 21: ...onnectors correctly 4 The pictures are different according to washing machine s spec Type of button Hot cold Cold only and so on NO POWER Check the fuse PWB ASSEMBLY MAIN PWB ASSEMBLY MAIN Replace MAIN PWB ASSEMBLY Reconnect the PWB ASSEMBLY Reconnect the PWB ASSEMBLY Replace PWB ASSEMBLY NO YES When measuring the voltage of the outlet is the voltage AC 127V NO YES Is the led 1 on YES NO Is connec...

Page 22: ... NO NO NO NO YES YES YES YES YES Is the tap opened Is water supplied Is resistance between each terminal of INLET VALVE ASSEMBLY is 2 8 kΩ Are recepatacles correctly connected to the terminals of the INLET VALVE ASSEMBLY Is detergent put in the correct compartment of the drawer Check the voltage of the inlet valve connector AC 127V Refer to 7 2 QC TEST MODE Is the detergent hardened YES YES NO NO ...

Page 23: ...NO NO YES YES YES YES YES Is the tap opened Is water supplied Is resistance between each terminal of INLET VALVE ASSEMBLY 0 8 1 2 kΩ Are receptacles correctly connected to the erminals of the INLET VALVE ASSEMBLY Has detergent been put in the correct compart ment of the dispenser Verify the voltage of the inlet valve connector is 220 240V AC Refer to 7 2 QC TEST MODE Is the detergent caked or hard...

Page 24: ... is the water level frequency 255 When pressing Rinse and Spin buttons at the same time while washing is the water level frequency between 230 243 Is the drain hose twisted or frozen Is the impeller of the drain pump clogged Is the connector disconnected disassembled Is the coil of the drain pump cut off resistance of coil is 80 150 Ω After completely drained and turn off water the washing machine...

Page 25: ... NO YES YES YES YES NO When checking the voltage between connector during whites washing is the voltage 127V When pressing Water Temp during is the displayed temperature is over 10 C higher than the selected temp Is the resistance between Thermistor Comectors 2 5kΩ 180kΩ After power off and the heater terminal is disconnected is the resistance 10Ω 30Ω When checking THERMISTOR on the tub is the THE...

Page 26: ...ng Rinse Spin and POWER buttons at the same time after power off press the Start Pause button 1 times is the drum low speed spin Is it disconnected or disassembled Red 3pin 1 GY 4pin 2 Replace the MAIN PWB ASSEMBLY Check the motor connector is the resistance of the terminal same as the figure MOTOR TERMINAL 1 Resistance of terminal About 5 Ω 15 Ω ERROR Replace Door Assem bly Check the DOOR SWITCH ...

Page 27: ...e the MAIN PWB ASSEMBLY YES YES YES YES NO NO NO NO NO Is the impeller of the drain pump clogged Are the Hose Connector and or Hose clogged Is the connector disconnected disassembled Is the coil of the right side of drain pump open or short circuited Coil R is 18 30 Ω When checking voltage between the connectors during spin is the voltage 220 240V AC as the figure ...

Page 28: ...e thermistor Clean the bellows NO YES YES NO Is the resistance of 1 thermistors on dry duct 2 5kΩ 180kΩ at 105 C 0 C Disassemble the cabinet cover and condens ing bellows Is there any foreign object in condensing bellows Disassemble the dry fan assy and dry duct upper and clean foreign object in duct and fan ...

Page 29: ...eplace the PWB ASSEMBLY Main NO NO NO NO YES YES YES Are receptacles correctly connected to the terminals of the DRY DUCT ASSEMBLY After power off is the resistance of dry heater 10 40Ω Is thermostat closed When checking voltage between connectors on drying is the voltage AC 220 240V as the figure wire color YL BK ...

Page 30: ...ASSEMBLY 1 1 2 3 YES YES NO NO NO Is it disconnected or disassembled 1 Yellow 3pin When checking woltage between connectors 1 2 2 3 on drying is the voltage DC 20 30V as the figure wire color 1 White 2 Black 3 Yellow Check the motor connector is the resistance of terminal same as the figure Resistance of terminal 2 5Ω 2 5Ω ...

Page 31: ...rew 2 screws on the back of the top plate Pull the top plate backward and upward as shown PANEL ASSEMBLY DRAWER Pull out the drawer and unscrew 2 screws Lift the side the Control Panel Assembly and pull it out PANEL ASSEMBLY CONTROL Push out PANEL ASSEMBLY CONTROL after Push the hook below PWB ASSEMBLY DISPLAY Unscrew the 10 screws from the Control Panel Assembly Disassemble the Display PWB Assemb...

Page 32: ...n 2 times in QC Test mode is the drum spinning at low speed Is it disconnected or disassembled Red 3pin 1 NA 4pin 2 Replace the MAIN PWB ASSEMBLY Check the motor connector Is the resistance of the terminal the same as the figure MOTOR TERMINAL Resistance of terminal About 5 Ω 15 Ω ERROR Replace Door Assem bly Check the DOOR SWITCH ASSEMBLY Connector and MAIN PWB ASSEMBLY Red 3 pin Yellow 4 pin and...

Page 33: ...op plate Pull the top plate backward and upward as shown DRAWER CONTROL PANEL ASSEMBLY Disconnect the Display PWB Assembly connec tor from Trans cable Pull out the drawer and unscrew 2 screws Unscrew 1 more screw on the back of the control panel Lift the left side of the Control Panel Assembly and pull it out DISPLAY PWB ASSEMBLY Unscrew the 8 screws from the Control Panel Assembly Disassemble the...

Page 34: ...Unscrew 6 screws from upper of the cabinet cover Unscrew the screw from filter cover Put a flat screwdriver or putty knife into the both sides of the filter cover and pull it out Unscrew the screw from the lower side of the cabinet cover ...

Page 35: ...screw 2 screws Unscrew the nut at the lower part of the dispens er Disassemble the 5 connentors from the valves Wire Color Red Housing BK BL White Housing BK WH Red Housing BK VT Blue Housing BK BL Blue Housing BK GY Unscrew 2 or 4 screws from the back of the cabinet NOISE FILTER Unscrew a screw from the TOP BRACKET Disassemble two connectors ...

Page 36: ...crew the 6 screws from upper of the canbinet cover Unscrew the screw from filter cover Put a flat screwdriver or putty knife into the both sides of the filter cover and pull it out Unscrew the screw from the lower side of the cabinet cover ...

Page 37: ...embly Disassemble the clamp assembly Tilt the cabinet cover Disconnect the door switch connector NOTE When assembling the CABINET COVER connect the connector Lift and separate the cabinet cover Disassemble the clamp assembly Disassemble the Gasket ...

Page 38: ...openng of the hinge and pull out the hinge cover Unscrew a screw from the lower side of door Disassemble the door upward Be careful The door is heavy DOOR LOCK SWITCH ASSEMBLY Open the door and disassemble the CLAMP AS SEMBLY Unscrew the 2 screws NOTE Reconnect the connector after replacing the DOOR SWITCH ASSEMBLY ...

Page 39: ...ODED VIEW 10 1 CABINET CONTROL PANEL ASSEMBLY A303 A104 A105 A106 A102 A103 A410 A485 A450 F110 F210 A101 A390 A200 A130 A131 A100 A430 A133 A300 A310 A153 A151 A152 A140 A150 A154 A155 A141 F215 A201 A220 A134 A111 A110 A303 A440 ...

Page 40: ...UM TUB ASSEMBLY K115 K110 K140 F310 K320 K105 F315 F465 K141 K111 K550 F468 K520 F461 K540 M260 K512 F140 K411 K410 K420 F464 K510 K530 K130 K131 K511 F145 F466 F463 K610 K611 K342 K340 K346 K344 K122 K121 K125 F467 K516 F328 K190 ...

Page 41: ...41 FOR LG TECHNICIAN 10 3 DISPENSER ASSEMBLY F300 F327 F462 F225 F130 F120 F441 F430 F220 F322 F321 A270 F180 Inlet Valve Filter SVC COLD BLUE F160 ...

Page 42: ...42 FOR LG TECHNICIAN 10 4 DRYER ASSEMBLY M235 M121 M120 M100 M215 M220 M240 M210 M110 M111 M101 K311 M130 M312 M310 M230 M311 K311 K311 ...

Page 43: ...MFL July 2015 PRINTED IN KOREA FOR LG TECHNICIAN ...

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