Kenmore 796.488x2800 Скачать руководство пользователя страница 37 | Manualshive

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36

9-4. PUMP MOTOR ASSEMBLY

Wiring
diagram

Circuit in the MAIN PWB

Wiring Diagram

MICOM

IC

R

5V

Rg

Cg

Vdc

Rs

Cs

PCB

CONNECTOR

PUMP

Vac

2

1

4

3

Pump Driving circuit

MAIN PWB

1

2

3

1

2

3

BL1

SB

BK

BN

DRAIN
PUMP

1

2

3

1

2

3

Object

Function

Test
points

Result

* Each circuits of loads in wiring diagram are all same.

Two pump motors are used to drain the tub and to circulate the water / detergent solution.

Drain Pump

Drain Pump

Test Points

Result

(1) to (2)

10-20

Ω

T.P

For Drain

(1)(2)

(1)

(2)

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Содержание 796.488x2800

Страница 1: ...WASHING MACHINE SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT Website http www sears com MODEL 796 488 2800 ...

Страница 2: ...P No MFL30599120 ...

Страница 3: ...16 8 TROUBLESHOOTING 17 8 1 SAFETY CAUTION 17 8 2 ERROR MODE SUMMARY 17 8 3 TROUBLESHOOTING SUMMARY 19 8 4 TROUBLESHOOTING WITH ERROR 20 8 5 TROUBLESHOOTING ELSE 26 9 COMPONENT TESTING INFORMATION 30 9 1 FILTER ASSEMBLY LINE FILTER 30 9 2 DOOR LOCK SWITCH ASSEMBLY 31 9 3 STATOR ASSEMBLY 33 9 4 PUMP MOTOR ASSEMBLY 36 9 5 INLET VALVE ASSEMBLY 37 9 6 HEATER ASSEMBLY 38 9 7 THERMISTOR ASSEMBLY 39 10 D...

Страница 4: ...CK RLM ENABLE ELECTRIC POWER CONSUMTION REVOLUTION SPEED WASHING DRAIN MOTOR WASH HEATER WASH SPIN 42 rpm 1100 rpm 9 5 5 Prewash Stain Cycle Quick Cycle Easy Spin Extra Rinse My Cycle Delay Wash Incorporated Incorporated 4 5 145 psi 30 1000 kPa Electronic 3 16 cu ft 3 60 cu ft IEC 27 W X 29 1 2 D X 42 3 4 H 49 4 5 D door open up to 12 hours 796 4884 800 and up to 13 hours 796 4885 800 PTC Solenoid...

Страница 5: ... from pressing any button to change the settings during operation Automatic Wash Load Detection Automatically detects the load and optimizes the washing time Built in Heater The internal heater automatically heats the water to the optimum temperature on selected cycles 2 2 NEURO FUZZY WASHING TIME OPTIMIZATION To get the best washing performance optimal time is determined by the water temperature ...

Страница 6: ...N 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 DOOR LOCKED LAMP LIGHTS When the frequency of water level is lower than 22 9 kHz It can be canceled when the frequency is more than 23 8 kHz When the temperature inside the ...

Страница 7: ...nlet Cold Water Inlet If the supply cord is damaged it must be replaced by the manufacturer or its authorized service technician in order to avoid a hazard Hot Cold 1 each Hose Wrench Tie strap to secure drain hose to standpipe inlet hose or laundry tub Drain Hose Dispenser Control panel Door Drum Ajustable Feet ACCESSORIES ...

Страница 8: ...ether it functions correctly STANDARD INSTALLATION The appliance should be installed as follows 1 2 3 4 5 6 6 REMOVE THE TRANSIT BOLTS Remove the transit bolts 4 EA with the supplied wrench Turn the leveling feet to adjust the appliance horizontally The appliance goes up by rotating the feet clockwise The appliance come down by rotating the feet counterclockwise Keep the transit bolts and spanner ...

Страница 9: ...NNECT THE INLET HOSE CONNECT THE DRAIN HOSE Make sure that the hose is not twisted CONNECT POWER PLUG The end of the drain hose should be placed less than 96 from the floor Avoid submerging the end of the hose Connect the power plug to the wall outlet Avoid connecting several electric devices as doing so may cause a fire ...

Страница 10: ...counterclockwise 5 Check the automatic reversing rotation of the drum 4 Check the water supply Verify that if water is supplied through the detergent dispenser 7 Check the drain and spin functions Press the POWER button twice to restart Press the SPIN SPEED button Press the START PAUSE button Check the drain and spin functions 8 Press the START PAUSE button 9 Water removal If SVC is required remov...

Страница 11: ...wood floor installations Extra Rinse This option provides an additional rinse cycle Delay Wash Allows the start of any cycle to be delayed for 1 19 12 9 hours POWER ON OFF BUTTON Press to turn the washer ON Press again to turn the washer OFF NOTE Pressing the ON OFF button during a cycle will cancel that cycle and any load settings will be lost MY CYCLE BUTTON Press the MY CYCLE button to save and...

Страница 12: ...SELECTOR KNOB Turn this knob to select the desired cycle Once the desired cycle has been selected the standard presets will be shown in the display These settings can be adjusted using the cycle setting buttons anytime before starting the cycle Press this knob to START the selected cycle If the washer is running use this knob to PAUSE the cycle without losing the current settings NOTE If you do no...

Страница 13: ...rmal Heavy Light Normal Hand Wash Items labeled hand washable Cold Cold Medium No Spin Warm Cold Warm Warm Low Light Normal Wool Silk Machine washable woolens with pure new wool only Warm Cold No Spin Warm Warm Cold Cold Low Light Normal Speed Wash Lightly soiled clothing and small loads Hot Cold No Spin Low Medium High Cold Cold Warm Cold Warm Warm Extra High Normal Heavy Light Rinse Spin Rinse a...

Страница 14: ...ctivate special functions including CHILD LOCK CLEAN WASHER and MY CYCLE Press and hold the option button marked with the special function for 3 seconds to activate CHILD LOCK Use this option to prevent unwanted use of the washer or to keep cycle settings from being changed while the washer is operating Press and hold the SOIL LEVEL and CYCLE SIGNAL buttons for 3 seconds to activate or deactivate ...

Страница 15: ...6 WIRING DIAGRAM PROGRAM CHART 14 ...

Страница 16: ...15 ...

Страница 17: ...each turns on Tumble counterclockwise Heater turns on for 3 sec Drain pump turns on Power off and unlock the door rpm 40 50 600 rpm 1100 rpm Water level frequency 25 65 Water level frequency 25 65 Water level frequency 25 65 Water level frequency 25 65 Water level frequency 25 65 rpm 40 50 Water temperature Water level frequency 25 65 Turn off all lamps The digits indicate the water level frequenc...

Страница 18: ...l If is displayed the drain pump will operate to the drain water automatically 8 1 SAFETY CAUTION 8 2 ERROR MODE SUMMERY If you press the START PAUSE button when an error is displayed any error except will disappear and the machine will go into the pause status In case of if the error is not resolved within 20 sec or the in case of other errors if the error is not resolved within 4 min power will ...

Страница 19: ...ower supply is stopped while washing machine is working the power is supplied rapidly 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 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 S...

Страница 20: ...RD Pin1 Heater X71 WH pin2 Vac input X133 BK pin2 Heater input WH pin1 Vac output Wash thermistor Thermistor Pin1 Wash thermistor Result Test Points 5 15 Ω 5 15 Ω 5 15 Ω Pin1 to Pin2 Pin2 to Pin3 Pin3 to Pin1 Pin1 to Pin2 0 8 1 2kΩ Wash Heater 12 18 Ω Drain Pump 10 20 Ω Inlet Valve NA_Pin3 Main wash BL3 BL4 Pin1 Common Pin2 Pre wash Pin3 Bleach Pin4 Hot valve Pump BL3 Pin3 Circulation pump BL4 Pin...

Страница 21: ...s Yes Is the voltage of the inlet valve connector 120 V AC Check the all terminal of INLET VALVE ASSEMBLY while the power is on Replace the INLET VALVE ASSEMBLY No Yes Is the connector connected to MAIN PWB assembly disconnected or dis assembled NA WH BL Reconnect or repair the connector No Yes Yes Is Electrical connection correct Refer to 9 5 wiring diagram Replace the MAIN HARNESS No No After ch...

Страница 22: ...ition Assurance TPA of connector check as follows And if you finish to measure the valve You should put TPA as original form Pump running 120V 5 Stopped Motor Pump 0 1V Method 1 Press the Power button while the SPIN SPEED button and SOIL LEVEL button is pressed simultaneously 2 Press Start Pause button 1 time Pump slow speed running 2 times Pump mid speed running 3 times Pump high speed running 4 ...

Страница 23: ...e RD4 Is rotor magnet cracked Hall sensor NA1 Hall Sensor Motor Drive part of wire part of motor Motor Yes No Yes Yes Magnet Replace the STATOR Is the resistance values in the range of 5 to 15 Ω U V V W W V U 1 V 2 W 3 After pull out the RD4 connector check the terminal of the connector in wire Red 3P male No Replace the Hall sensor Is hall sensor out of order Refer to 9 3 Stator assembly Hall sen...

Страница 24: ...t the cycle Replace the PCB ASSEMBLY No Is DOOR SWITCH ASSEMBLY broken Replace the DOOR SWITCH ASSEMBLY No Yes Does the spring of Latch Hook actuate Replace Door Assembly Yes No Note Environmental check list 1 The machine must operate with all the doors completely closed and locked 2 The washing area must operate with a water temperature not higher than 45 Celsius and must not have more amount of ...

Страница 25: ...ly In the DRUM assembly Yes Is the washing machine installed at an angle Adjust the height of washing machine to be kept horizontally Yes No Is displayed Yes When you press both SPIN SPEED button and SOIL LEVEL button simultaneously is the water level frequency over 21 3kHz Refer to 7 3 Check the AIR CHAMBER and the tube clogged No Does the inlet valve work when the power is not applied Replace th...

Страница 26: ...ed or disassembled Reconnect or repair the connector No No Yes Is the resistance of the pressure sensor out of range pin 1 pin 3 21 23 Ω 10 Replace the pressure switch No Yes Is the AIR CHAMBER and the tube clogged Replace the MAIN PWB assembly Fix the air chamber and remove the foreign material Yes ...

Страница 27: ...cuit breaker Yes No Is the current rating of multi outlet power strip enough Avoid connecting several electric devices Is the supplied voltage 120V AC 10 15 Alternate with explanation Yes Yes No Is the connector connected to PCB Noise filter disconnected or disassembled Reconnect or repair the connector No Replace the MAIN PWB ASSEMBLY Yes No Is LED on while the power is on Replace the DISPLAY PWB...

Страница 28: ...connected or disassembled Reconnect or Repair the connector Yes Is the display PCB broken check the buzzer sound and LED light while push the button Replace the DISPLAY PWB ASSEMBLY Yes Is the button of panel stuck Or Did the lever broke down Repair the button or lever Yes No No ...

Страница 29: ...mes in QC Test mode is the drum spinning at low speed Check during spin if the frequency of the water level is 248 or more Is it disconnected or disassembled Red 3pin 1 NA 4pin 2 Check the motor connector Is the resistance of the terminal the same as the figure MOTOR TERMINAL Replace the MAIN PWB ASSEMBLY Resistance of terminal L M M N N L About 5Ω 15Ω Check the SENSOR SWITCH ASSEMBLY or HOSE Pres...

Страница 30: ... If defective Then check stator Replace if necessary Check rotor for broken magnets Replace rotor if necessary Is water supplied Are the plugs correctly connected to the terminals of the INLET VALVE ASSEMBLY Is softener bleach put in the correct compartment of the drawer Is the softener bleach cap clogged Is the motor bolt loosened Is there friction noise coming from the motor NO NO NO NO YES YES ...

Страница 31: ... Component be sure to turn the power off and do voltage discharge sufficiently Wiring diagram Circuit in the MAIN PWB Wiring Diagram Vac MAIN PWB ASSEMBLY WH RD LI L2 RI CI C2 C3 1 1 2 2 3 3 3 3 2 2 1 1 Test points and Result Test Points Result WH 1 to RD 3 WH 3 to RD 1 0 Ω 0 Ω 1 3 3 1 RD WH WARNING ...

Страница 32: ...pulse through terminal 3 4 PTC solenoid will make the door locked Door lock is detected when switches in terminal 4 5 are set closed CAM rotation will forcibly clear off the connection The maximum allowable number of impulse authorizations is 2 Upon the third authorization of the impulse the position of CAM goes back to the door open position Authorizing the impulse occurs in 4 5 seconds upon inpu...

Страница 33: ...32 Test points Result Test Points 2 to 4 3 to 4 4 to 5 2 to 4 Result 1kΩ 50 60 120 Ω Infinity 120 Vac Remarks At 77 F 25 C At 77 F 25 C Voltage Input 2 3 4 5 ...

Страница 34: ... 5 2 3 4 1 2 3 4 Hb Function Test points Windings Result Windings 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 There are no brushes to wear out Unlike a more traditional brushless motor the rotor surrounds the stator rather than being attached to it Test Points Result 1 t...

Страница 35: ...o the Hall Sensor use the following steps 1 Unplug power cord 2 Remove rear washer panel 3 Locate Hall sensor connector on the stator behind the rotor 4 Place meter leads on terminals 5 to 4 white to gray 5 Plug in power cord close door and press power button DO NOT PRESS START 6 You should measure 10 to 15 Vdc If 10 to 15 Vdc is present control board white wire and gray wire are OK If not follow ...

Страница 36: ...s but does not pulse or change Hall sensor has failed and must be replaced IF zero 0 voltage is measured on either test check red blue wires for continuity Repair or replace harness as needed Voltage Testing Hall Sensor from the Main PCB Assembly 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...

Страница 37: ...1 4 3 Pump Driving circuit MAIN PWB 1 2 3 1 2 3 BL1 SB BK BN DRAIN PUMP 1 2 3 1 2 3 Object Function Test points Result Each circuits of loads in wiring diagram are all same Two pump motors are used to drain the tub and to circulate the water detergent solution Drain Pump Drain Pump Test Points Result 1 to 2 10 20 Ω T P For Drain 1 2 1 2 ...

Страница 38: ...rgize the hot or cold water valve solenoids to meet the selected water temperature After pull out the connector of defective valve check the resistance Test points 1 2 Result 0 8 1 2 kΩ Wiring Diagram PRE WASH MAIN WASH BLEACH SOFTNER 1 2 1 2 1 2 1 2 BL NA NA BL WH GY BL NA OR WH WH BL 4 3 2 1 1 2 3 1 2 3 4 3 2 1 4 3 2 1 4 3 2 1 COMMON BK MIAN PWB INLET VALVE HOT VALVE 1 2 RD Each circuits of load...

Страница 39: ...33 BK 2 1 2 1 1 2 1 2 3 2 3 2 1 1 X71 WH WH YL GN YL BN BL BN WASHING HEATER Vac FUSE FUSE Function Test points Result 1 The Wash Heater is designed to raise the wash water to the desired temperature selection during certain wash cycles Wash Heater Each circuits of loads in wiring diagram are all same 1 2 Wash Heater Test Points Result 1 to 2 12 18 Ω ...

Страница 40: ...V R R R R C C C C 2 3 4 5 6 Function Test points The thermistor temperature sensor is used to monitor water temperature in the tub or Steam Generator Wash Thermistor Test Points 1 to 2 Result tolerance 5 50 kΩ 39 2 kΩ 15 2 kΩ 6 6 kΩ 3 1 kΩ 2 2 kΩ Remarks At 77 F 25 C At 86 F 30 C At 122 F 50 C At 158 F 70 C At 194 F 90 C At 212 F 100 C 1 2 ...

Страница 41: ...emble the Rear Frame 3 Pull the Control panel forward 4 Disconnect connectors 5 Remove 5 screws 6 Disassemble the controller assembly 1 Open the Lid 2 Remove 4 screws 3 Disassemble the Lid Assembly 4 Pull down the Dispenser by pushing hooks 5 Put a hand into the dispenser hole and hold the top plate 6 Push backward using an opener and lift the top plate Do first left side L ...

Страница 42: ...e 5 hoses NOISE FILTER 1 Remove the screw from the top plate 2 Unplug the 2 connectors 4 Remove the 4 screws on the holder 5 Disassemble the 5 connectors from the valves 3 Remove the nut at the lower part of the dispenser Wire color LWH BK MOR BK NWH BK OGY BK PBL BK ...

Страница 43: ... screws from upper side of the cabinet cover 2 Unscrew the screw from filter cover 3 Put a flat screwdriver into the hinge slots at the bottom of the cover and pry it out 4 Unscrew the 1 screws from the lower side of the cabinet cover ...

Страница 44: ...bly using a flat screwdriver 7 Separate the clamp assembly from cabinet cover 8 Tilt the cabinet cover 9 Disconnect the door switch connector 10 Lift and separate the cabinet cover 11 Disassemble the clamp assembly using a flat screwdriver 12 Disasemble the Gasket ...

Страница 45: ...a flat screwdriver into the opening of the hinge and pull out the hinge cover 4 Unscrew the screws from the door 5 Disassemble the door upward downward 1 Open the door 2 Disassemble the clamp assembly 3 Unscrew the 2 screws from cabinet cover Be careful The door is heavy ...

Страница 46: ...emble the back cover 2 Separate 2 connectors from the heater 3 Loose the nut and pull out the heater 3 Disassemble the pump assembly in arrow direction HEATER THERMISTOR When assembling the heater insert the heater into heater clip on the bottom of the tub Tighten the fastening nut so the heater is secure CAUTION ...

Страница 47: ...46 WHEN FOREIGN OBJECT IS STUCK BETWEEN DRUM AND TUB 1 Disassemble the back cover 2 Separate the heater from the tub 3 Remove any foreign objects wire coin etc by inserting a long bar in the opening ...

Страница 48: ... damper hinges from the tub and base 3 Pull out the Rotor 4 Unscrew the 2 screws from the tub bracket 5 Loosen the 6 bolts on the stator 6 Unplug the 2 connectors from the stator NOTE If you pull the dampers apart the must be replaced If you do not separate them they can be re used ...

Страница 49: ...2 A300 A220 A201 A410 A440 A430 A100 A101 F215 A125 A154 A200 A151 A133 A140 F110 A450 A105 A104 A150 A153 A303 Printed materials Description Owner s Manual Energy Label Loc No Tech Sheet Service Manual Quick Start Guides Installation Sheet G001 G002 G003 G004 G006 G007 The following parts are not illustrated ...

Страница 50: ...123 K143 K360 K350 K351 K530 K110 K111 K140 F140 K610 K611 K320 K344 K346 K342 K190 In case of replacing THERMISTOR of HEATER ASSEMBLY K320 replace HEATER ASSEMBLY K320 HEATER ASSEMBLY K320 includes THERMISTOR In case of replacing BEARING BALL K121 K122 and GASKET K105 replace TUB ASSEMBLY OUTER K105 TUB ASSEMBLY OUTER K105 includes BEARING BALL K121 K122 and GASKET K125 ...

Страница 51: ...50 11 3 DISPENSER ASSEMBLY F300 A275 A276 F432 F430 F441 F321 F324 F322 F326 F323 F160 F170 F301 F462 F120 ...

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