LG DLE2250 Series Page 21 Service Manual Download | Manualshive

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1. Flow sensor bars light up

Is lint filter full?

No

Yes

Yes

Is duct clogged?

Clean lint filter before every load

Check & clean duct.

2. Flow sensor bars light up and does not disappear.

Make sure that the ductwork is not
crushed or restricted.

Check for blockages and lint build up.

Avoid long runs of ducts or runs
with multiple elbows or bends.

*Control Panel

Bars are displayed and do NOT disappear

8-3 Troubleshooting for flow sensor dryer

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Summary of Contents for DLE2250 Series

Page 1: ...NUAL CAUTION READ THIS MANUAL CAREFULLY IN ORDER TO PROPERLY DIAGNOSE PROBLEMS AND TO SAFELY PROVIDE QUALITY SERVICE ON THESE DRYERS U S A Website http us lgservice com Canadian Website http lg ca MODEL Electric Gas DLE2250 DLG2251 ...

Page 2: ...blems 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 strap Connect wrist strap to green ground connection point or unpainted metal in the appliance OR Touch your finger repeatedly to a green ground connection poi...

Page 3: ... 2 TEST 2 THERMISTOR TEST MEZSURE WITH POWER OFF 26 9 3 TEST 3 MOTOR TEST 27 9 4 TEST 4 MOISTURE SENSOR 28 9 5 TEST 5 DOOR SWITCH TEST 29 9 6 TEST 6 HEATER SWITCH TEST ELECTRIC TYPE 30 9 7 TEST 7 GAS VALVE TEST GAS TYPE 31 9 8 TEST 8 SEMI CONDUCTOR 32 10 CHANGE GAS SETTING NATURAL GAS PROPANE GAS 33 11 DISASSEMBLY INSTRUCTIONS 35 12 EXPLODED VIEW 42 12 1 Control Panel and Plate Assembly 42 12 2 1 ...

Page 4: ...the rating label regarding detailed information Specifications are subject to change by manufacturer See page 7 See page 8 Size 27 X 30 X 38 7 inch Dryer capacity 7 1 cu ft Weight 126 lbs Pedestal 1 each Purchased Separately Stacking kit 1 each Purchased Separately ACCESSORIES ...

Page 5: ...y Levels Reversible Door Drum Child Lock Interior Light Product WxHxD Sensor POWER SUPPLY Material Finish Silver color Spray ELEC GAS 120 240V 60Hz 26A 120 208V 60Hz 23A 120V 60Hz 5A 250W 4 5A 5400W 22 5A 4100W 21A 15 W 0 2A 13 W 0 11A x 2 Electronic 7 1 cu ft 126 146 7 9 5 5 Available Available Available Alcosta Available Available 27 x 42 3 4 x 28 1 3 Packing WxHxD 29 1 2 x 44 3 4 x 30 3 4 AC 24...

Page 6: ...2 FEATURES AND BENEFITS 6 ...

Page 7: ...l of the stacking kit Push the front rail back against the stops on the side brackets Do not use a stacking kit with a gas dryer in potentially unstable conditions like a mobile home Stacking Kit Installation Instructions Place the washer firmly on a stable even and solid floor as product installation instructions describe in the owner s manual Do not attempt this alone At least two people are req...

Page 8: ...bly must be placed on a solid sturdy level floor for proper operation Insert the T clip of the 4 retainers into the dryer base as shown Press up on the back of the clip and pull outward to lock into place Place the dryer on the pedestal Make sure the front and back feet are in the correct positions The dryer feet will fit into the innermost positions as shown Make sure the screws on the pedestal a...

Page 9: ...2 inch 3 8cm from 3 other wires peel insulation back 1inch 2 5cm Make ends of 3 wires a hook shape Then put the hooked shape end of the wire under the screw of the terminal block hooked end facing rightward and pinch the hook together and screw tightly Use the instructions under option 1 if your home homehas a 4 wire receptacle NEMA type 14 30R If this type is available at your home you will be co...

Page 10: ...the hooked shape end of the wire under the screw of the terminal block hooked end facing rightward and pinch the hook together and screw tightly 1 2 5 cm 3V2 8 9 cm 3 wire connection Direct wire 1 Connect the neutral wire white of the power cord to the center terminal block screw 2 Connect the red and black wires to the left and right terminal block screws 3 Connect the ground wire green of the po...

Page 11: ...ordinances permit the connection of a frame grounding conductor to the neutral wire use these instructions If your local codes or ordinances do not allow the connection of a frame grounding conductor to the neutral wire use the instructions under Option 3 Optional 3 wire connection 1 Connect the neutral white or center wire B to the center silver colored screw A and tighten securely 2 Connect the ...

Page 12: ...tor 4 Tighten all connections securely Turn on gas and check all pipe connections internal and external for gas leaks with a non corrosive leak detection fluid 5 For LP Liquefied Petroleum gas connection refer to section on Gas Requirements For further assistance refer to section on Gas Requirements 1 New Stainless Steel Flexible Connector Use only if allowed by local codes Use Design A G A Certif...

Page 13: ...dry Temperature control is set by users Default settings can be adjusted by users Manual Dry SPEED DRY AIR D FRESHEN UP RY Off Off Off HIGH Mid High NO HEAT Saturation Saturation Saturation 68 5 C 66 5 C 5min 5min 5min 25min 30min 20min 3Hr COTTON NORMAL DELICATES TOWELS MEDIUM LOW Saturation Saturation Saturation 45 5 C 38 5 C 45 5 C 60 4 C 52 3 C 66 4 C 5min 5min 5min Normal Adjustable LOW Satur...

Page 14: ...ype 3 Outlet Thermostat Auto reset Check Top Marking N85 Measure resistance of terminal to terminal Open at 185 9 F 85 5 C Close at 149 9 F 65 5 C Same shape as Thermal cut off Resistance value Resistance value 5W Blow housing Safety Electric type 4 Lamp holder Measure resistance of terminal to terminal Resistance value 80W 100W 6 Idler switch Measure resistance of the following terminal COM NC 1 ...

Page 15: ...sistance value 10W Heater case Hi limit Electric type 9 Motor See Page 17 10 Gas valve valve 1 valve 2 Measure resistance of the following terminal Valve 1 terminal Valve 2 terminal Resistance value 1 5 kW Resistance value 1 5 2 5 kW Gas type 12 Flame Detect Measure resistance of terminal to terminal Open at 370 F Maximum Close at 320 F Resistance value Resistance value 1W Gas type 11 Igniter 5318...

Page 16: ... terminal Open at 203 7 F 95 5 C Close at 158 9 F 70 5 C Resistance value Continuity 1Ω Gas type Gas funnel 14 Outlet Thermostat Manual reset Check Top Marking N110 Measure resistance of terminal to terminal Open at 212 12 F 110 7 C Manual reset If thermal fuse is open must be replaced Resistance value Continuity 1Ω Gas type Gas funnel ...

Page 17: ... On Off by Centrifugal Switch STOP MODE When Motor does not operate RUN MODE Motor operates When checking component be sure to turn power off then do voltage discharge sufficiently NOTE Centrifugal switch Centrifugal switch Pull Drive forward ...

Page 18: ...18 GN YL 3 WIRE SYSTEM EARTH 4 WIRE SYSTEM 7 WIRING DIAGRAM ...

Page 19: ...on alerts you to the need of cleaning the duct When the alarm about Duct clogging is on display of the panel your duct vents should be cleaned by yourself or serviceman The FlowSenseTM display consists of four bars inside a box The display has only 2 possible displays as shown here Also see the figure shown below No bars displayed 4 bars displayed 8 1 Flow sensor Flow Sensor Function 4 Bars NO Bar...

Page 20: ...e If the exhaust system is severely restricted the display will show four bars Other problems may also be shown with error codes Refer to the next page for error code details and solutions 4 END of Cycle At the end of the test cycle will display The test cycle will end and the dryer will shut off automatically after a short delay NO BARS OK FOUR BARS RESTRICTED 2 Press START PAUSE button The dryer...

Page 21: ...ck clean duct 2 Flow sensor bars light up and does not disappear Make sure that the ductwork is not crushed or restricted Check for blockages and lint build up Avoid long runs of ducts or runs with multiple elbows or bends Control Panel Bars are displayed and do NOT disappear 8 3 Troubleshooting for flow sensor dryer ...

Page 22: ...r off OO Motor runs Displays Moisture Sensor Operation If moisture sensor is contacted with damp cloth The display number is below180 in normal condition 239 Low moisture 30 High moisture Current Temp 5 70 Current Temp 5 70 Electric control Temperature sensor ELECTRIC TYPE Motor Heater1 2700W GAS TYPE Motor ELECTRIC TYPE Motor Heater1 Heater2 5400W GAS TYPE Motor Gas valve Once Motor Controller Mo...

Page 23: ...10V 125V AC YES NO Check the fuse or circuit breaker Check if the voltage measured between Connector BK2 or WH2 Black Wire Linked to the Controller and WH1 White Wire Is 110 125V YES NO 1 1 2 BK2 or WH2 WH1 BK WH Check if Power Cord is properly connected Reconnect the controller Replace controIler Check if the Controller wire is disconnected Check if Terminal Block and Power Cord are connected Che...

Page 24: ...tween Harness wire and tap relay Black Housing Black tap relay Check the Matching color Between Harness wire and tap relay White Housing White tap relay White Low Extra Low Low Extra Low on on on on on O O O O on off off Temperature Control below 68 4 Turn on Heater1 and Heater2 Temperature Control below 52 4 Only Turn on Heater1 Temperature Control below 70 4 Turn on Burner PCB ASSEMBLY LAYOUT Te...

Page 25: ... 1 Black and White Housing Off Off Power Off Wire CROSS Items Case Heater1 Operation black Heater2 operation White PCB condition Of operation Improper connection of the heater can damage the heater or the main board CAUTION Connector Housing Black Check the Matching color Between Harness wire and Tab Relay Black Housing Black Tab Relay Color Table 2 Connection of Tab Relay with PCB ASSEMBLY Gas Ta...

Page 26: ...NA6 4 BL Does the resistance measured match the temperature of the thermistor in the chart Use room temperature unless the thermistor is warm from running the dryer Disconnect the NA6 connector from the main PCB Measure the resistance between the NA6 6 GN pin and a chassis ground screw Is the resistance 1 Ω Replace the main PCB Check all wiring harness connections wires and ground screws Replace t...

Page 27: ...ff from Motor Pulley Is resistance below 3Ω between Connector WH White wire and BL2 Yellow wire Measure while door is closed YES NO Check if Door flame presses door switch knob Check Door Switch Check Harness connection Is resistance below 3Ω between Connector BL2 Yellow wire and BL2 Brown wire NO YES Replace Control Relay check Check Controller connector Is resistance below 1Ω between terminals o...

Page 28: ...CB operation If the results of this test are normal the sensor system and PCB response are normal The problem is somewhere else FUNCTIONAL TEST Control 1 Enter the diagnostic mode See DIAGNOSTIC TEST MODE on page 1 2 With the door closed press the START PAUSE button once The dryer will start tumbling without heat 3 Open the door The drum will stop tumbling and the dE error code will be displayed a...

Page 29: ... light bulb Replace the light socket BL2 1 3 4 2 WH4 1 3 4 2 NO NO NO YES YES NOTE This test has two parts The best test of the door switch system is done in the diagnostic mode This FUNCTIONAL TEST will test the door switch wiring harness and PCB operation If the results of this test are normal the door switch system and PCB response are normal The problem is somewhere else FUNCTIONAL TEST Contro...

Page 30: ... and connectors to the element See element component test Check power supply Replace the element NO NO NO NO NO YES YES YES YES YES Measure the resistance between the YL wire on the black tab relay and the BL wire on the white tab relay connectors Is the resistance 36 44 Ω Measure the resistance between terminals 1 RD and the heater housing Is the resistance Ω Refer to the hi limit thermostat and ...

Page 31: ...lve 1 and Valve 2 Valves are more than1 5 2 5kΩ Measure after Off NO YES Change Valve Change Valve Check thermostat Hi limit Safety Igniter operates after 1 min Igniter becomes reddish YES NO Check Igniter Frame detect When measuring Valve 2 voltage Value is more than DC 90V 10 sec after Igniter off NO YES Check Gas connection or Gas supply When measuring Valve 1 voltage More than DC 90V YES NO If...

Page 32: ...discharge When discharging contact the metal plug of Power cord with earth line Degree of Resistance is not in 300 30 Ω Turn the Dryer s Power Off then measure resistance When measuring resistance Is resistance 300 20 Ω YES NO Check Semi conductor and Harness Connector Check Harness linking connector Take 6pin Connector from the Controller ...

Page 33: ...contents Orifice Dia 1 47mm for Propane Gas Conversion Label Instruction Sheet NCU PCK Remove 2 screws Disassemble the pipe assembly Replace Natural Gas orifice with Propane Gas orifice Opened Closed Full open Adjustment screw Close Adjustment screw Orifice Initially Warning The burner is set for natural gas at the factory The propane orifice conversion kit is sold as a service part to autherized ...

Page 34: ...34 GAS IGNITION START GAS IGNITION ON ON OFF OFF ON CLOSE VALVE 1 IGNITER VALVE 2 FLAME DETECT OPEN GAS VALVE STRUCTURE Adjustment Screw GAS VALVE FLOW NO NO YES YES ...

Page 35: ... from its electrical supply Protect your hands and arms from sharp edges when working To reduce the risk of personal injury adhere to all industry recommended safety procedures including the use of long sleeved gloves and safety glasses Failure to do this could lead to a serious injury W WA AR RN NI IN NG G THE DRYER TOP PLATE IS VERY LARGE AND HEAVY Fallure to follow instructions can result in da...

Page 36: ...assemble the control panel assembly W WA AR RN NI IN NG G When you disassemble the control panel be sure to disconnect the dryer from its electrical supply Protect your hands and arms from sharp edges when working To reduce the risk of personal injury adhere to all industry recommended safety procedures including the use of long sleeved gloves and safety glasses Failure to do this could lead to a ...

Page 37: ... of door switch W WA AR RN NI IN NG G When you disassemble the door switch connector be sure to disconnect the dryer from its electrical supply Protect your hands and arms from sharp edges when working To reduce the risk of personal injury adhere to all industry recommended safety procedures including the use of long sleeved gloves and safety glasses Failure to do so can cause serious injury ...

Page 38: ...to disconnectthedryerfromitselectricalsupply Protectyour handsandarmsfromsharpedgeswhenworking Toreducethe riskofpersonalinjury adheretoallindustryrecommended safetyproceduresincludingtheuseoflongsleevedglovesand safetyglasses Failuretodothiscouldleadtoaseriousinjury ...

Page 39: ...semble a 4 elbow with a 4 duct Wrap duct tape around the joint 5 Insert duct assembly elbow first through the side opening and connect the elbow to the dryer s internal duct W WA AR RN NI IN NG G Beforeperformingthisexhaustinstallation besureto disconnectthedryerfromitselectricalsupply Protectyour handsandarmsfromsharpedgeswhenworkinginsidethe cabinet Toreducethe riskofpersonalinjury adhereto all ...

Page 40: ...emove the Cabinet Cover and Tub Drum Front assembly 3 Remove the Drum assembly 4 Remove 2 screws and cover Air guide 5 Remove the bolt and washer 1 Open the top plate 2 Remove the Cover Cabinet and Tub Drum Front assembly 3 Remove the Drum assembly 4 Remove 7 screws 5 Pull theTub Drum Rear assembly Towards the front 6 Remove the fan 7 Disconnect the motor clamp and motor ...

Page 41: ...e 2 Remove 2 screws 3 Remove the air duct 1 Disassemble the top plate 2 Remove the Cover Cabinet and Tub Drum Front assembly 3 Remove the Drum assembly and Tub Drum Front assembly 4 Disconnect the Air duct from the Tub Drum Front assembly 5 Remove the rollers from the Tub Drum Front assembly and Tub Drum Rear assembly ...

Page 42: ...12 EXPLODED VIEW 42 12 1 Control Panel and Plate Assembly A210 A211 A130 A120 A140 A110 ...

Page 43: ...43 12 2 1 Cabinet and Door Assembly Electric Type A560 A570 A530 A525 A540 A520 A600 A510 A500 A131 A800 A610 A400 A420 A430 A390 A320 A310 A305 A300 A450 A460 A410 A330 A325 A308 ...

Page 44: ...44 12 2 2 Cabinet and Door Assembly Gas type A390 A530 A525 A540 A520 A800 A600 A510 A500 A131 A550 A400 A420 A430 A330 A320 A310 A305 A300 A450 A460 A410 A325 A308 ...

Page 45: ...bly Electric Type K120 K100 K130 K222 K221 K224 K350 K240 F110 F120 F130 K210 K540 K230 K510 K515 K520 K251 K251 K250 K530 K600 K650 F140 K640 K660 K655 K560 K620 K310 K400 K140 F200 K250 K330 K320 K550 K610 K651 K340 K335 K360 K336 ...

Page 46: ...30 K222 K221 K350 K240 M160 M171 M170 M140 K210 K540 K230 K510 K520 K251 K360 K251 K250 K530 K600 K650 M141 M110 M250 M230 M190 M181 M150 M240 M220 K640 K660 K560 K620 K140 K250 K550 K610 K651 M210 M180 K330 K310 K320 K340 K400 F200 K515 K655 K335 K336 K224 ...

Page 47: ...PRINTED IN KOREA P No MFL62119938 ...

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