LG D5988B Service Manual

Electric & gas dryer
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SERVICE MANUAL
CAUTION
MODEL : DLE5977W/DLG5988W
DLE5977B/DLG5988B
DLE3777W/DLG3788W

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Summary of Contents for LG D5988B

  • Page 1 SERVICE MANUAL CAUTION MODEL : DLE5977W/DLG5988W DLE5977B/DLG5988B DLE3777W/DLG3788W...
  • Page 3: What To Do If You Smell Gas

    IMPORTANT SAFETY NOTICE WARNING ! To avoid personal injury, disconnect power before servicing this product. If electrical power is required for diagnosis or test purposes, disconnect the power immediately after performing the necessary checks. RECONNECT ALL GROUNDING DEVICES WHAT TO DO IF YOU SMELL GAS: Do not try to light a match, or cigarette, or turn on Immediately call your gas supplier from a neighbor’s any gas or electrical appliance.
  • Page 4: Table Of Contents

    CONTENTS 1. SPECIFICATIONS ........................4 2. FEATURES AND BENEFITS ....................5 3. INSTALLATION INSTRUCTIONS ................... 6 4. DRYER CYCLE PROCESS ..................... 12 5. COMPONENT TESTING INFORMATION ................13 6. MOTOR DIAGRAM AND SCHEMATIC..................16 7. CONTROL LAY - OUT ......................17 8. WIRING DIAGRAM ......................18 9.
  • Page 5: Specifications

    SPECIFICATIONS...
  • Page 6: Features And Benefits

    FEATURES AND BENEFITS DLE5977W/DLG5988W/DLE5977B/DLG5988B DLE3777W/DLG3788W...
  • Page 7: Installation Instructions

    INSTALLATION INSTRUCTIONS Review the following options to determine the appropriate electrical connection for your home: 3-wire receptacle 4-wire connection : Direct wire (NEMA type10-30R) Important : The places where a 4-wire connection is needed are , for example, mobile homes and areas Use the instructions at this section if your home has that local codes do not admit the use of 3-wire a 3-wire receptacle (NEMA type 10-30R) and you...
  • Page 8: Wire Connection : Direct Wire

    4. Put the hooked shape ends of the wire under the screw of the terminal block(hooked end facing rightward) and squeeze the hook together and screw tightly. 5. Put the hooked shaped ends of the other power supply cable wires under the outer terminal block screws(hooked end facing right) and squeeze the hooked ends together and screw tightly.
  • Page 9 Option 1: 3-Wire Connection with a Power Supply Cord lf your local codes or 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 Section 3: Optional 3-wire connection.
  • Page 10 Option 2: 4-wire connection with a Power supply cord. • lf your local codes or ordinances do not allow the use of a 3 wire connection, or you are installing your dryer in a mobile home, you must use a 4- wire connection.
  • Page 11 Option 3: Optional 3-wire connection. • If your local codes or ordinances do not allow the connection of a frame-grounding conductor to the neutral wire, use the instructions under this section. 1. Remove center terminal block screw. 2. Remove appliance neutral ground wire (white) from external ground connector screw.
  • Page 12: Gas Requirements

    3-2. Connect Gas Supply Pipe (Gas Dryer ONLY) Gas Requirements. 1 New Stainless Steel Flexible Connector - Use 4 Black Iron Pipe only if allowed by local codes (Use Design Shorter than 20’ (6.1 m) - Use 3/8” pipe A.G.A. Certified Connector) Longer than 20’...
  • Page 13: Dryer Cycle Process

    DRYER CYCLE PROCESS Default Conditions of operation and termination Drying Cooling Wrinkle care Cycle Temp- Display erature time Electro- Temp- Default Temp- Level Time sensor Control time Control** Sensor Dry * Manual Dry ** Motor Load Heater...
  • Page 14: Component Testing Information

    COMPONENT TESTING INFORMATION When checking the Component, be sure to turn the power off, and do voltage discharge sufficiently. CAUTION Component Test Procedure Check result Remark...
  • Page 15 Component Test Procedure Check result Remark...
  • Page 16 Component Test Procedure Check result Remark...
  • Page 17: Motor Diagram And Schematic

    MOTOR DIAGRAM AND SCHEMATIC When checking Component, be sure to turn Power off, then do voltage discharge sufficiently. NOTE Centrifugal switch Centrifugal switch (Pull Drive forward)
  • Page 18: Control Lay - Out

    CONTROL LAY - OUT PWB ASSEMBLY DISPLAY LAY-OUT OPTION PART MODEL P/No DISPLAY OP 1 OP 2 OP 3 OP 4 OP 5 OP 6 18:FO 19:FO 18:F1 19:F1 PWB ASSEMBLY LAY-OUT...
  • Page 19: Wiring Diagram

    WIRING DIAGRAM ELECTRIC DRYER WIRING DIAGRAM GAS DRYER WIRING DIAGRAM...
  • Page 20: Diagnostic Test

    DIAGNOSTIC TEST 1. This TEST should be used for Factory test /Service test. Do not use this DIAGNOSTIC TEST other than specified. 2. Activating the Heater manually with the Door open may trip the Thermostat attached to the Heater, therefore do not activate it manually.
  • Page 21: Test 1 120Vac Electrical Supply

    Test 1 120VAC Electrical supply Caution Trouble Symptom Measurement Condition...
  • Page 22: Test 2 Thermistor Test

    Test 2 Thermistor Test --- Measure with Power Off Caution Trouble Symptom Measurement Condition Air TEMP. RES. Air TEMP. RES. Air TEMP. RES.
  • Page 23: Test 3 Motor Test

    Test 3 Motor test Caution Trouble Symptom Measurement Condition ”...
  • Page 24: Test 4 Moisture Sensor

    Test 4 Moisture sensor Caution Trouble Symptom Measurement Condition Display Value Voltage(DC) (between 6Pin terminal Remark...
  • Page 25: Test 5 Door Switch Test

    Test 5 Door switch test Caution Trouble Symptom Measurement Condition...
  • Page 26: Test 6 Heater Switch Test - Electric Type

    Test 6 Heater switch test - Electric Type Caution Trouble Symptom Measurement Condition...
  • Page 27: Test 7 Gas Valve Test - Gas Type

    Test 7 GAS Valve test - Gas Type Caution Trouble Symptom Measurement Condition...
  • Page 28: Change Gas Setting (Natural Gas, Propane Gas)

    CHANGE GAS SETTING (NATURAL GAS, PROPANE GAS) Warning After Natural Gas Setting, applying Propane Gas Orifice or wrong use of Natural Gas Orifice will result in fire. Conversion must be made by a qualified technician. Initially STEP 1 : VALVE SETTING Full open Close STEP 2 : ORIFICE CHANGE...
  • Page 29 GAS VALVE FLOW START KEY PUSH “VALVE 1” ON IGNITE ON IGNITE TEMPERATURE ABOUT 370”F FRAME DETECT OPEN IGNITE OFF “VALVE 2” ON GAS IGNITION FRAME DETECT CLOSE DRYING “VALVE 2” OFF GAS IGNITION GAS VALVE STRUCTURE START VALVE 1 IGNITER FRAME CLOSE...
  • Page 30: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS...
  • Page 37: Exploded View

    EXPLODED VIEW A210 A130 A120 A110...
  • Page 38: Cabinet & Door Assembly

    A700 A800 A390 A330 A600 A500 A320 A310 A400 A410 A460...
  • Page 39: Drum & Motor Assembly : Electric Type

    F200 K400 K120 K140 K100 K130 K250 K310 K330 K320 K340 K221 K210 K250 K550 K560 K610 K240 F140 K510 K520 K640 F130 F110 K650...
  • Page 40: Drum & Motor Assembly : Gas Type

    F200 K400 K120 K140 K100 K130 K250 K310 K330 K320 K340 K221 K210 K250 K550 K560 K610 K240 K510 K520 K640 M150 M240 M220 M160 K650 M171 M170 M210 M140 M230 M110 M190 M180 M181...
  • Page 41: Replacement Parts List

    REPLACEMENT PARTS LIST ¡Æ...
  • Page 42 ¡Æ...

This manual is also suitable for:

Dle5977wDlg5988wDle5977bDlg5988bDle3777wDlg3788w

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