Kenmore 796.4219#90# Service Manual

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WASHING MACHINE

SERVICE MANUAL

CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL : 796.4219#90# , 796.4102#90#
http://www.managemyhome.com

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  Summary of Contents for Kenmore 796.4219#90#

  • Page 1: Washing Machine

    http://www.managemyhome.com WASHING MACHINE SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT. MODEL : 796.4219#90# , 796.4102#90#...
  • Page 2 P/No.: MFL30599143...
  • Page 3: Table Of Contents

    CONTENTS 1. SPECIFICATIONS ....................... 3 2. FEATURES & TECHNICAL EXPLANATION ............... 4 3. PARTS IDENTIFICATION ....................7 4. INSTALLATION AND TEST ....................8 5. OPERATION ........................11 5-1. CONTROL PANEL FEATURES ................. 11 5-2. CYCLE GUIDE ......................13 5-3. CYCLE OPTIONS ...................... 15 5-4.
  • Page 5: Features & Technical Explanation

    2. FEATURES & TECHNICAL EXPLANATION 2-1. FEATURES Ultra Capacity The Larger drum enables not just higher head drop and stronger centrifugal force, but also less tangling and wrinkling of the laundry. Heavier loads, such as king size comforters, blankets, and curtains, can be washed. Direct Drive System The advanced Brushless DC motor directly drives the drum without belt and pulley.
  • Page 6: Water Level Control

    2-2. NEURO FUZZY WASHING TIME OPTIMIZATION To get the best washing performance, optimal time is determined by the water temperature, the selected washing temperature, and the size of the load. water temperature washing time the best selected NEURO- washing washing rinsing time temperature FUZZY...
  • Page 7: Control Lock

    2-5. THE DOOR CAN NOT BE OPENED While program is operating. When a power failed and power plug is taken out in operation While Door Lock lights turn on. White the motor is in the process of intertial rotating, through the operation is paused. 2-6.
  • Page 8: Parts Identification

    3. PARTS IDENTIFICATION ACCESSORIES Tie strap (Option) Hot/Cold (1 each) Wrench to secure drain hose to standpipe, Hose inlet hose, or laundry tub Caps(4) Elbow Bracket Non-skid pads (for securing drain hose) (for covering shipping bolt holes)
  • Page 9: Installation And Test

    4. INSTALLATION & TEST Before servicing, ask the customer what the trouble is. Check the setup (power supply is 120V, remove the transit bolts, level the washer...) Check with the troubleshooting guide. Plan your service method by referring to the disassembly instructions. Service the unit.
  • Page 11: Operation

    TEST OPERATION Press the POWER button. Preparation for Press the washing. START/PAUSE button. • Connect the power plug to • Listen for a click to determine if the outlet. the door has locked. • Connect the inlet hose. Check the water heating Check the automatic Check the water supply.
  • Page 13 POWER (ON/OFF) BUTTON SPECIAL CYCLE AND OPTION BUTTONS Press to turn the washer ON. Press again to turn the These buttons are used to activate special cycles or washer OFF. options. NOTE: Pressing the POWER button during a cycle will DETERGENT AMOUNT INDICATOR cancel that cycle and any load settings will be lost.
  • Page 14: Cycle Guide

    5-2. CYCLE GUIDE 4219#9##...
  • Page 15 5-2. CYCLE GUIDE 4102#9##...
  • Page 16: Cycle Options

    5-3. CYCLE OPTIONS ADD STEAM ADD STEAM cycles include the Steam Refresh, Normal/Casual, Bulky/Bedding, Kids Wear, Heavy Duty and Whitest Whites. Adding steam to these cycles provides superior cleaning performance while reducing energy and water consumption. By using a hot steam spray from above and cooler water below, fabrics get the cleaning benefits of a super hot wash, without the energy usage or potential damage to fabrics.
  • Page 17: Special Function

    5-4. SPECIAL FUNCTION CLEAN WASHER A buildup of detergent residue can occur in the wash tub over time and can lead to a mildewy or musty smell. The CLEAN WASHER cycle is specially designed to remove this buildup using bleach or other cleaner designed specifically for cleaning front load washers.
  • Page 18: Explanation Of Each Process

    5-5. EXPLANATION OF EACH PROCESS Process Explanation Stay • Electrical power is supplied • Washer is ready to work and the micom is in the active mode. Water • After loading laundry and selecting a course and a cycle, water is supply supplied and drum rotates.
  • Page 19 Process Explanation Intermittent • To reach the correct set speed, the motor rotates clockwise and spin counterclockwise directions after spin process starts. • If the water level frequency is lower than 23.0 kHz, a washer senses suds and starts suds removal process. Rinse •...
  • Page 20: Program Chart

    6. PROGRAM CHART...
  • Page 22: Test Mode

    7. TEST MODE 7-1. SAFETY CAUTION There's built-in AC 110V and DC power in output terminal of PWB assembly in common. Be careful electric shock when disconnecting parts while trouble shooting. (Wear Electro Static Discharge gloves when working.) After cutting off the power when changing PWB assembly, disconnect or assemble. Be careful static when handling PWB assembly, and use Electro Static Discharge plastic pack when delivering or keeping it.
  • Page 23: Troubleshooting

    8. TROUBLESHOOTING 8-1. SAFETY CAUTION There’s built-in AC 120V and DC power in output terminal of PWB assembly in common. Be careful electric shock when disconnecting parts while trouble shooting. (Wear Electro Static Discharge gloves when working.) After cutting off the power when changing PWB assembly, disconnect or assemble. Be careful static when handling PWB assembly, and use Electro Static Discharge plastic pack when delivering or keeping it.
  • Page 24 ERROR SYMPTOM CAUSE • The connector (3-pin, male, white) in the MOTOR HARNESS is not connected to the connector (3-pin, female, white) of STATOR ASSEMBLY. • The electric contact between the connectors LOCKED (3-pin, male, white) in the MOTOR HARNESS MOTOR and 4-pin, female, white connector in the MAIN PWB ASSEMBLY is bad or unstable.
  • Page 25: Troubleshooting Summary

    8-3. TROUBLESHOOTING SUMMARY...
  • Page 27: Troubleshooting With Error

    8-4. TROUBLESHOOTING WITH ERROR INLET VALVE ERROR Replace the Is the voltage at the inlet INLET VALVE valve coil 120VAC with the ASSEMBLY. valve energized? displayed? Check the AIR When you press both CHAMBER WASH/RINSE button and and the tube DELAY STRAT button (clogged).
  • Page 28 DRAIN ERROR Measure the resistance of Replace the the drain pump motor. Is DRAIN PUMP the resistance between 10 ASSEMBLY. and 20 ? displayed? (Refer to 9-4 Pump motor assembly.) Reconnect or Check the connectors at the Replace the Check the voltage between repair main PCB and the drain MAIN PWB...
  • Page 29 HEATING ERROR Reconnect or Is the connector connected to repair thermistor disconnected or the connector. disassembled? displayed? Reconnect or Check the connectors at the repair main PCB, the heater and the the connector. thermistor. Are the connectors loose or disconnected? Steam generator thermistor Steam generator heater Wash thermistor...
  • Page 30 - part of motor LOCKED MOTOR ERROR displayed? Check the connectors at the Reconnect Motor main PCB and the main the connector. motor. Are the connectors (connector / loose or disconnected? wire / motor ) Replace Check the resistance of the Main PCB connectors RD3 the STATOR.
  • Page 31: Door Open Error

    DOOR OPEN ERROR Replace gasket Is the spring in the door displayed? or hinge. latch hook on the door Remove foreign strong and tight? objects. Reconnect or Check the connectors at the repair main PCB and the door the connector switch.
  • Page 32: Unbalance Error

    UNBALANCE ERROR OVER FLOW ERROR displayed? displayed? Check the AIR Put laundry While a cycle is running, Does the laundry lean CHAMBER evenly press the WASH/RINSE and toward one side, not evenly and the tube In the DRUM DELAY START buttons put in the DRUM assembly? (clogged).
  • Page 33 PRESSURE SENSOR ERROR displayed? Reconnect or Check the connectors at the repair main PCB and the pressure the connector switch. Are the connectors loose or disconnected? Replace the Measure the resistance pressure between pins 1 and 3 of the switch pressure switch.
  • Page 34: Troubleshooting Else

    8-5. TROUBLE SHOOTING ELSE CAUTION 1. Be careful of electric shock if disconnecting parts while troubleshooting. 2. First of all, check the connection of each electrical terminal with the wiring diagram. 3. If you replace the MAIN PWB ASSEMBLY, reinsert the connectors correctly. NO POWER Replace the Is LED on while the power...
  • Page 35 BUTTON DOESN’T WORK Reconnect or Check the connectors at the Repair main PCB and the line filter. the connector Are the connectors loose or disconnected? Check the connectors Replace the between the main PCB and main PCB. the display PCB. Are the connectors loose or disconnected? Replace the main PCB.
  • Page 36 VIBRATION & NOISE IN SPIN Put an unbalance part (rubber) inside of drum and start QC test mode and run in high spin. Remove the Have all the transit bolts (Refer to section 7-2.) transit bolts and base packing been When the machine is and Base removed?
  • Page 37 DETERGENT DOES NOT FLOW IN Refer to Is water supplied? NO WATER SUPPLY Are receptacles correctly connected to the Check the wiring. terminals of the INLET VALVE ASSEMBLY? Put the detergent in the correct place. Has detergent been put in the correct compartment of the dispenser? Is the detergent caked or hardened? Clean the dispenser.
  • Page 38 LIQUID DETERGENT/SOFTENER/BLEACH DOES NOT FLOW IN Refer to Is water supplied? NO WATER SUPPLY Check the wiring on the Are the plugs correctly connected to the terminals of dispenser. the INLET VALVE ASSEMBLY? Put it in the correct Is liquid detergent/softener/bleach put in the correct compartment.
  • Page 39: Component Testing Information

    9. COMPONENT TESTING INFORMATION When Resistance (Ohm) checking the Component, be sure to turn the power off, WARNING and do voltage discharge sufficiently. 9-1. FILTER ASSEMBLY (LINE FILTER) Circuit Circuit in the MAIN PWB / Circuit diagram diagram MAIN PWB ASSEMBLY FUSE Test...
  • Page 40: Door Look Switch Assembly

    9-2. DOOR LOCK SWITCH ASSEMBLY Circuit Circuit in the MAIN PWB / Circuit diagram diagram MAIN PWB MICOM Relay Relay Common terminal of Valve Door switch The Door Lock Switch Assembly consists of a Heating PTC, a Bimetal, a Function Protection PTC, and a Solenoid.
  • Page 41 Test points Result Test Points Result Remarks (2) to (4) 700-1500 At 77 °F °C (3) to (4) 60-90 At 77 °F °C (4) to (5) Infinity (2) to (4) 120 Vac Voltage Input...
  • Page 42: Stator Assembly

    9-3. STATOR ASSEMBLY Circuit Circuit in the MAIN PWB / Circuit diagram diagram MAIN PWB NA1NA MICOM Function The DD motor can be driven from stopped to maximum speed in infinite steps in either direction. There are 36 poles on the stator; 12 permanent magnets spaced around the rotor.
  • Page 43 The hall sensor determines the speed and direction of the motor. It also can read that the load is off balance when the drum speed fluctuates. Test point - Voltage Testing Hall Sensor at Stator Result (Hall Sensor) (2) (4) (1) (3) (5) If measuring voltage from the Main PCB Assembly to the Hall Sensor, use the following steps:...
  • Page 44 7. To measure output signal voltage from the hall sensor, carefully move test leads to terminals 1 to 4, blue and gray. Slowly rotate motor rotor by hand. You should read a pulsing 10 Vdc. If 10 Vdc is measured from 1 to 4, move lead on blue wire to red wire, terminal 2.
  • Page 45: Pump Motor Assembly

    9-4. PUMP MOTOR ASSEMBLY Circuit Circuit in the MAIN PWB Circuit diagram diagram MAIN PWB 1 2 3 1 2 3 1 2 3 4 1 2 3 3 2 1 MICOM 3 2 1 CONNECTOR Pump Driving circuit DRAIN CIRCULATION PUMP PUMP...
  • Page 46: Inlet Valve Assembly

    9-5. INLET VALVE ASSEMBLY Circuit Circuit in the MAIN PWB diagram MICOM CONNECTOR Inlet valve driving circuit INLET VALVE Circuit diagram MIAN PWB COMMON GY YL (BK) MAIN BLEACH VALVE WASH VALVE WASH INLET VALVE * Each circuits of loads in wiring diagram are all same. Depending on the cycle and water temperature, the controller will energize the hot or Function cold water valve solenoids to meet the selected water temperature.
  • Page 47: Heater Assembly

    9-6. HEATER ASSEMBLY Circuit Circuit in the MAIN PWB Circuit diagram diagram MAIN PWB (X71) (X135) (X134) X100 MICOM Heater Tab Relay STEAM Heater driving circuit WASH GENERATOR HEATER HEATER * Each circuits of loads in wiring diagram are all same. Function 1.
  • Page 48: Thermistor Assembly

    9-7. THERMISTOR ASSEMBLY Circuit Circuit in the MAIN PWB / Circuit diagram diagram MAIN PWB MICOM WASH STEAM THERMISTOR GENERATOR THERMISTOR The thermistor (temperature sensor) is used to monitor water temperature in the tub. Function Test points (1) (2) (1) (2) Wash Thermistor Steam generator Thermistor...
  • Page 49 Result Wash Thermistor Test Points Result Remarks (tolerance ±5%) (1) to (2) At 86°F (30°C) 39.5 k 26.1 k At 104°F (40°C) 12.1 k At 140°F (60°C) 8.5 k At 158°F (70°C) At 203°F (95°C) 3.8 k At 221°F (105°C) 2.8 k...
  • Page 50 2) Operation mechanism of Steam generator Function After supplying some amount of water through inlet valve and water level sensor, Heater operates and steam generates. Generated steam is sprayed by nozzle. If the water in the steam generator is reduced by spraying steam, water level sensor decide to supply water or not.
  • Page 51: Disassembly Instructions

    10. DISASSEMBLY INSTRUCTIONS Be sure to unplug the machine before disassembling and repairing the parts. CONTROL PANEL ASSEMBLY Unscrew 2 screws on the back of the top plate. Pull the top plate backward and upward as shown. Disconnect the Display PWB assembly connector from trans cable.
  • Page 52 MAIN PWB ASSEMBLY Disconnect the POWER connector and SENSOR SWITCH ASSEMBLY. Remove the Protective cover. Disconnect the connectors. Unscrew 1 screw on the back. Remove the Main PWB.
  • Page 53: Dispenser Assembly

    DISPENSER ASSEMBLY Disassemble the top plate assembly. Pull out the drawer. Push out the DISPENSER ASSEMBLY after unscrewing 2 screws. Unscrew the Clamp nut at the lower part of the dispenser. Disassemble the 4 connectors from the valves. Wire Color Blue Housing (YL-BK) White Housing (BK-WH) Blue Housing (BK-GY)
  • Page 54 CABINET COVER Unscrew the 6 screws from upper of the canbinet cover. Unscrew the screw from filter cover. Put a flat ( -) screwdriver or putty knife into the hinge slots at the bottom of the cover and pry it out. Unscrew the screw from the lower side of the cabinet cover.
  • Page 55 Open the door. Disassemble the clamp assembly. Tilt the cabinet cover. Disconnect the door switch connector. NOTE: When assembling the CABINET COVER, connect the door switch connector. Lift and separate the cabinet cover. Disassemble the clamp assembly. Disassemble the gasket.
  • Page 56 DOOR Open the door. Unscrew the 6 screws from the HINGE COVER. Put a flat ( - ) screwdriver into the openng of the hinge, and pull out the hinge cover. DOOR LOCK SWITCH ASSEMBLY Open the door and disassemble the CLAMP ASSEMBLY.
  • Page 57 HEATER Disassemble the cabinet cover. Separate 2 connectors from the heater. Loosen the nut and pull out the heater. CAUTION • When assembling the heater, insert the heater into the heater clip on the bottom of the tub. • Tighten the fastening nut so the heater is secure.
  • Page 58 MOTOR/DAMPER Disassemble the back cover. Remove the bolt. Pull out the Rotor. Unscrew the 2 screws from the tub bracket. Remove the 6 bolts on the stator. Unplug the 2 connectors from the stator. Disassemble the damper hinges from the tub and base.
  • Page 59 MOTOR/DAMPER Disassemble the back cover. Remove the bolt. Pull out the Rotor. Unscrew the 2 screws from the tub bracket. Remove the 6 bolts on the stator. Unplug the 2 connectors from the stator. Disassemble the damper hinges from the tub and base.
  • Page 60: Exploded View

    11. EXPLODED VIEW 11-1. CABINET & CONTROL PANEL ASSEMBLY “The following parts are not illustrated" Description Loc No. *Owner’s Manual G001 *Energy Label G002 *Tech Sheet G003 M410 M400 Printed materials *Service Manual G004 *Quick Start Guides G006 *Installation Sheet G007 F215 F210...
  • Page 61: Drum And Tub Assembly

    11-2. DRUM & TUB ASSEMBLY K123 K351 K350 K360 K143 K610 K611 F140 K115 K411 K410 K141 F466 K110 K111 K117 K150 K140 F310 K571 F315 K142 F465 K572 K190 K160 F463 F464 K122 K513 K195 K570 K125 K130 K320 K530 K121 K510...
  • Page 62: Dispenser Assembly

    11-3. DISPENSER ASSEMBLY F323 F322 F462 F321 F300 F170 F160 F227 F226 F327 F225 F430 F220 F441 F120 A275 F130 A276 F432...

This manual is also suitable for:

796.4102#90#