Maytag MVWB835DW Скачать руководство пользователя страница 23

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PAGE 22

FOR SERVICE TECHNICIAN’S USE ONLY

DO NOT REMOVE OR DESTROY

Wiring Diagram

IMPORTANT:

Electrostatic discharge may cause damage to machine control electronics. See page 1 for

ESD information.

NOTE:

Schematic shows lock switch open.

Figure 8 - Wiring Diagram

RECIRC.

PUMP

DRAIN

PUMP

NOT ON ALL MODELS

120 VAC PUMPS

& SHIFTER

SHIFTER

COIL

LBU

3 PHASE

BPM MOTOR

BK BR

VS3

VS1

VS2

BPM MOTOR

DRIVE

NOT ON ALL MODELS

HEATER

ELEMENT

1 2

BK GY

1
2
3

120 VAC

POWER

CORD

A B

MOTOR

PLATE

CABINET

G/Y

RTN (VSS)

VALVE

THERMISTOR

SOFTENER

BLEACH/OXI

MAIN HOT

MAIN COLD

THERMISTOR

WATER INLET VALVE

120 VAC

GROUND CIRCUIT

WIDE

RTN (VS

1 2

SMART UI

SPEAKER

BK BU

LOCK SW

LID SW

HOME SW

LOCK MOTOR

SW OUT

GRAY

JACKET

DC LOCK

LOCK

LID

HOME

12 VDC MOTOR

3
1

(NOT ON
ALL MODELS)

FULL WAVE

BRIDGE

RECTIFIER

NEUT

L1 N

L1
G
N

RECI

NEU

AIN

PUMP

ON BOARD

PRESSURE

TRANSDUCER

PRESSURE

HOSE TO TUB

SHIF

TER

HF RETURN

DRIVE PLATE

SPEAKER

CONNECTOR

COMMUNICATIONS

CONNECTOR

Содержание MVWB835DW

Страница 1: ...Washer Service Manual MVWB835DW ...

Страница 2: ...ken the main control assembly The new main control assembly may appear to work well after repair is finished but a malfunction 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 point or unpainted metal in the appliance Before...

Страница 3: ...ic mode using that button Replace the user interface If no indicators come on after powering on the washer go to TEST 1 Main Control ACU page 14 DIAGNOSTIC GUIDE Before servicing check the following Make sure there is power at the wall outlet Has a household fuse blown or circuit breaker tripped Was a regular fuse used Inform customer that a time delay fuse is required Are both hot and cold water ...

Страница 4: ... returns the washer to standby mode SERVICE TEST MODE NOTE The Service Diagnostic mode must be activated before entering Service Test Mode see procedure on page 2 NOTE If at any point the user presses the POWER button during Service Test Mode the washer exits to standby mode Active Fault Code Display in Service Test Mode If the display begins flashing in the format F then E while in Service Test M...

Страница 5: ...turn on the Oxi valve 008 Toggle Drain Pump 009 Toggle Recirc Pump Note Not available on all models 010 Toggle Low Lid must be closed and locked for this to be enabled Speed Spin Note The basket must be empty for this function 011 Toggle Mid Lid must be closed and locked for this to be enabled Speed Spin Note The basket must be empty for this function 012 Toggle High Lid must be closed and locked ...

Страница 6: ...pressure If this step fails replace the Up to 5 sensor machine control 006 Validates inlet If this step fails go to and complete Up to 5 thermistor Test 5 Temperature Thermistor page 18 007 Validates IPM If this step fails replace the Up to 5 thermistor machine control 008 Turns on heater If heater does not turn on use 8 Service Test Mode to manually turn on and test the heater See page 4 009 Reci...

Страница 7: ...cle is available by the following procedures Models without a cycle selection knob Press the soil level or temperature buttons The sequence step increments using the soil level button and decrements using the temperature button Models with a cycle selection knob In addition to pressing the soil level or temperature buttons rotating the cycle selection knob clockwise increments through the cycle fu...

Страница 8: ...Exit Procedure Pressing the POWER button will exit Software Version Display and return washer to standby mode FAULT ERROR CODES Refer to Fault Error Codes chart on pages 8 10 Fault Error Code Display Method Fault codes are displayed by alternately showing F and E All fault codes have an F and an E The F indicates the suspect System Category The E indicates the suspect Component system Up to eight ...

Страница 9: ...the motor control section of the main control Fault See TEST 3b Drive System Motor page 16 F2E1 UI Stuck Indicates that the user interface is detecting that a button is Button continuously activated See Key Activation Encoder Test page 3 F2E3 UI Mismatch Indicates that the machine control or user interface ID do not match the expected values Verify that the ACU and UI part numbers are correct F2E4...

Страница 10: ... Error ACU Cannot Hear UI F7E0 Loss Of Power Fault is displayed when the main control detects control voltage is too low or lost Check power at outlet Check circuit breakers fuses or junction box connections Check AC power cord for continuity See TEST 1 Main Control ACU page 14 F7E1 Loss Of Power Fault is displayed when power is lost during spin This fault forces During Spin the washer to pause fo...

Страница 11: ...for ventilation Ensure that drain height is between 39 991 mm and 8 2 4 m above the floor May signify problem with water inlet valves Pressure transducer fault on main control See TEST 2 Valves page 15 and TEST 6 Water Level page 19 F8E6 Water Fault is displayed when main control senses water in the tub Hazard and the lid has been left open for more than 10 minutes Check pressure hose connection f...

Страница 12: ...problem See TEST 4 Keys and Encoders page 17 non responsive Main Control problem See TEST 1 Main Control ACU page 14 No Sounds When Button sounds are turned off See TEST 4 Keys and Encoders page 17 Keys Are Pressed Connections between main Check connections and continuity between main control control and UI and UI User Interface problem See TEST 4 Keys and Encoders page 17 Main Control problem See...

Страница 13: ... Check for proper drain hose installation Make sure it is not inserted more than 4 5 114 mm Make sure drain hose is not sealed into drain pipe and that there is an air gap for ventilation Standpipe position Ensure drain height is between 39 991 mm and 8 2 4 m above the floor Plugged drain hose Check drain hose for obstructions Obstructions to drain pump Check tub sump under impeller plate basket f...

Страница 14: ...9 Clothes wet after cycle 1 Overloaded washer is complete not water 2 Oversuds see above saturated but very damp 3 Items caught in tub sump 4 Weak suspension 5 Shifter not moving into position 6 Cold Rinse water 105 F 40 5 C 7 See TEST 7 Drain Pump page 19 8 See TEST 3b Drive System Motor page 16 Load not rinsed 1 Check proper water supply 2 Not using HE detergent 3 Washer not loaded properly 4 Sh...

Страница 15: ...nue to step 9 OFF 5VDC missing or micro failure proceed to step 7 7 Check if console UI is affecting the main control DC supply a Unplug washer or disconnect power b Remove connector J18 from main control c Plug in washer or reconnect power d Recheck the Diagnostic LED per step 6 If the diagnostic LED is now flashing go to Test 4 Keys and Encoders None of the indicators light up step 4 page 17 If ...

Страница 16: ...on test if the motor runs after 15 20 seconds there is not a problem with the motor control or motor wiring harness connections 3 While in Service Test Mode try to get the washer to spin if the motor hums briefly and then shuts down go to Fault Code Display Mode and check for fault codes TEST 3a Drive System Shifter This test checks connections shifter coil and harness NOTE Lid must be closed and ...

Страница 17: ...Diagnostics to verify repair 13 If the preceding steps did not correct the problem replace the main control a Unplug washer or disconnect power b Replace the main control c Reassemble all parts and panels d Plug in washer or reconnect power Perform Service Diagnostics to verify repair TEST 3b Drive System Motor This test checks the wiring to the motor and the motor itself IMPORTANT Whenever the wa...

Страница 18: ... and the drive motor area see Figure 3a page 16 8 Visually check that the motor connection on the drive is fully inserted into its mating connector If visual checks pass go to step 9 If visual checks fail reconnect motor connector on drive plate and repeat step 1 9 With an ohmmeter check for continuity on the motor harness between all pins on the J1 machine motor control connector and the drive mo...

Страница 19: ...If continuity passes replace the user interface and go to step 5 5 Reassemble all parts and panels 6 Plug in washer or reconnect power 7 To verify repair activate the Service Diagnostic Mode and then perform Key Activation Encoder Test on page 3 Some buttons do not toggle indicators 1 Unplug washer or disconnect power 2 Replace the UI assembly 3 Reassemble all parts and panels 4 Plug in washer or ...

Страница 20: ...le to access main control 5 Visually check that the J4 connector is inserted all the way into the main control If visual check passes go to step 6 If connector is not inserted properly reconnect J4 and repeat step 2 6 Remove connector J4 from main control With an ohmmeter verify resistance values shown below across the following J4 connector pinouts If values are open or out of range go to step 7 ...

Страница 21: ...ections are correct replace the main control TEST 8 Lid Lock Perform the following checks if the washer does not lock or unlock 1 Check the lid lock by performing Lid Lock test under Service Test Mode in Service Diagnostic Mode on page 4 The following steps assume that this step was unsuccessful 2 Unplug washer or disconnect power 3 Remove console to access main control 4 Visually check that the J...

Страница 22: ...ns Bottom View Drive System Drain Pump Figure 7 Main Control Board J2 J4 J1 AC Cord Hot Water Valve Fabric Softener Valve Pressure Hose User Interface J6 J18 Drain Pump Motor Shifter Connector Cold Water Valve Bleach Oxi Valve not on all models J5 Recirculation Pump Motor Cover Motor Bolt Front of Washer Rear of Washer J12 Ground Connection ...

Страница 23: ...ENT 1 2 BK GY 1 2 3 BK G W G L1 G N 120 VAC POWER CORD A A B B MOTOR PLATE CABINET G Y RTN VSS VALVE THERMISTOR SOFTENER BLEACH OXI MAIN HOT MAIN COLD THERMISTOR BK BK T W OR V R BU 1 2 3 4 5 6 7 8 9 10 11 12 WATER INLET VALVE 120 VAC GROUND CIRCUIT 5V WIDE RTN VSS 1 2 3 SMART UI SPEAKER BK BU Y LOCK SW LID SW HOME SW LOCK MOTOR LOCK MOTOR SW OUT 1 2 3 4 5 6 7 W R BK BU BR G GRAY JACKET DC LOCK LO...

Страница 24: ...e Washer PROCEDURE FOR REMOVING THE TUB RING Models MVWB835DW MVWB855DW WTW8040DW WTW8500DW MVWB855DC WTW8000DW WTW8500DC Serial Number Range All Serial Numbers Concern New tub ring is difficult to remove Cause Due to the increase in size and depth of the tub ring the working space between the tub ring and side panel is very limited Correction The technician must use care when servicing the tub or...

Страница 25: ...of the washer top See Figure 1 Figure 1 3 Disconnect drain hose from tub ring 4 Locate the six 6 tub ring clips illustrated in Figure 2 Unclip each clip with a stubby flat blade screwdriver Figure 2 5 Lift up the left rear suspension rod and disconnect it from the rear brace see Figure 3 This will allow more room to access the two clips located on both sides of the bleach well Figure 3 6 After ser...

Страница 26: ...al Numbers Concern An air leak in the pressure hose system may cause the following error codes to appear Pressure System Fault F3E1 Long Fill F8E1 or Overfill F8E3 Overview An important part of the system design is a nylon washer that is installed on the pressure sensor s hose fitting The nylon washer prevents the pressure hose from being inserted too far onto the sensor s hose fitting potentially...

Страница 27: ...TOP AND CABINET PARTS 11 11 2014 2 Part No W10758774 Rev A ...

Страница 28: ...708964 White 13 90016 Clip Harness 14 Assembly Lid Lock W10648012 White 15 W10273971 Screw 16 693995 Screw 17 Cabinet W10675025 White 18 Brace Cabinet Top Front W10724131 White 19 W10512626 Brace Cabinet Top Rear 20 1157158 Screw 21 W10612925 Badge 22 W10687506 Foot Assembly Leveling 23 W10612644 Panel Rear 24 W10414221 Damper Sound Illus No Part No Description 25 W10142728 Screw 26 W10676061 Cove...

Страница 29: ...CONSOLE AND DISPENSER PARTS 11 11 2014 4 Part No W10758774 Rev A ...

Страница 30: ...o Part No Description 7 W10611544 Panel Console Rear Cover 8 Assembly Dispenser Drawer W10601825 White 9 1157158 Screw 10 W10618933 Seal Console 11 W10479821 Cord Power 12 3400076 Screw 13 W10632532 Assembly Housing Illus No Part No Description 14 W10599423 Valve Water Inlet 15 9740848 Screw 16 W10530674 Harness Valve 17 W10568405 Assembly Speaker 18 97787 Screw 19 Assembly Dispenser Bezel W106018...

Страница 31: ...MOTOR BASKET AND TUB PARTS 11 11 2014 6 Part No W10758774 Rev A ...

Страница 32: ...ption 12 W10631220 Harness Lower 13 W10005430 Clamp Cable 14 8533943 Screw 15 W10275082 Ring Snap 16 W10594084 Damper Assembly Tub Suspension Set Of 4 Includes Suspension Bushings and Suspension Balls 17 W10579778 Stator Motor 18 W10256551 Bushing Upper Suspension Set of 4 Includes Suspension Balls Illus No Part No Description 19 W10447973 Assembly Clutch 20 W10583768 Ball Suspension Set of 4 Incl...

Страница 33: ...PUMP PARTS 11 11 2014 8 Part No W10758774 Rev A ...

Страница 34: ...1 W10581874 Pump Assembly Drain 2 W10637932 Shield Heat Illus No Part No Description 3 W10142630 Clamp Hose 4 8317496 Clamp Hose Illus No Part No Description 5 W10004910 Screw 6 W10622690 Hose Tub to Pump 11 11 2014 9 Part No W10758774 Rev A ...

Страница 35: ...on W10355010 Cleaner Kitchen Appliance 8212526 Washer Drip Tray W10135699 Affresh Odor Remover 8212546RP Inlet Hoses 4 Ft Two Black Hoses W Straight Ends and 4 Rubber Washers 8212641RP Inlet Hoses 5 Ft Two Black Hoses W Straight Ends and 4 Rubber Washers 8212656RP Inlet Hoses 10 Ft Two Black Hoses W Straight Ends and 4 Rubber Washers 8212545RP Inlet Hoses 5 Ft One Red Hose and One Blue Hose W Stra...

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