Maytag MAH5500BWW Service Manual - Page 4

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CONTENTS I N T R O D U C T I O N ...i C O N T E N T S ...i i SECTION 1. GENERAL INFORMATION ...1 - 1 PRE-INSTALLATION REQUIREMENTS ...1 - 1 U N C R A T I N G ...1 - 1 I N S T A L L A T I O N...1 - 2 GROUNDING POLARITY CHECKS ...1-4 S P E C I F I C A T I O N S ...1-4 WASHER CONTROLS ...1 - 5 INPUT DEFINITIONS ...1 - 6 OUTPUT DEFINITIONS ...1 - 8 CYCLE SEQUENCE DEFINITIONS ...1 - 1 0 M I S C E L L A N E O U S ...1 - 1 1 Door Latch Switch Monitoring ...1 - 1 1 Door Lock/Spin Control ...1 - 1 1 Redistribution ...1 - 1 1 Push-To-Start Relay Operation ...1 - 1 2 CYCLE REVIEW ...1 - 1 3 GENERAL COMPONENT EXPLODED VIEW 1 - 1 4 SECTION 2. ELECTRICAL COMPONENTS & TESTING 2 - 1 ELECTRICAL TEST EQUIPMENT ...2 - 1 ELECTRICAL TESTS ...2-2 Grounded Components ...2-2 Voltage Checks ...2-2 Water Valve Test...2-2 Wax Motor Check/Door Lock Mechanism 2-2 Timer & Console Switches ...2-3 Timer Input Charts ...2-3 Machine Control...2-5 DRIVE MOTOR ...2-7 MOTOR CONTROL BOARD ...2-7 Motor & Motor Control Test ...2-8 Motor Phase Test ...2-8 Motor Windings Check ...2-9 Tachometer Circuit Diagnostics ...2-10 UNBALANCE CONTROL SYSTEM ...2 - 1 1 Tub Displacement Switch ...2 - 1 2 Strut Displacement Switch ...2 - 1 2 Inertial Unbalance Switch ...2 - 1 3 Cabinet Vibration Sensor ...2 - 1 3 Cabinet Vibration Absorber ...2 - 1 3 16008373-01 © 1998 Maytag Corporation CONTENTS ii

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INTRODUCTION
INTRODUCTION
INTRODUCTION
INTRODUCTION
INTRODUCTION
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CONTENTS
CONTENTS
CONTENTS
CONTENTS
CONTENTS
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SECTION 1.
GENERAL INFORMATION
SECTION 1.
GENERAL INFORMATION
SECTION 1.
GENERAL INFORMATION
SECTION 1.
GENERAL INFORMATION
SECTION 1.
GENERAL INFORMATION
......................................................................................................
......................................................................................................
......................................................................................................
......................................................................................................
......................................................................................................
1-1
1-1
1-1
1-1
1-1
PRE-INSTALLATION
REQUIREMENTS
............................................................................................................
1-1
UNCRATING
.......................................................................................................................................................................
1-1
INSTALLATION
..................................................................................................................................................................
1-2
GROUNDING POLARITY CHECKS
......................................................................................................................
1-4
SPECIFICATIONS
.............................................................................................................................................................
1-4
WASHER CONTROLS
...................................................................................................................................................
1-5
INPUT DEFINITIONS
.....................................................................................................................................................
1-6
OUTPUT DEFINITIONS
...............................................................................................................................................
1-8
CYCLE SEQUENCE DEFINITIONS
...................................................................................................................
1-10
MISCELLANEOUS
.......................................................................................................................................................
1-11
Door Latch Switch Monitoring
....................................................................................................................
1-11
Door Lock/Spin Control
...................................................................................................................................
1-11
Redistribution
.........................................................................................................................................................
1-11
Push-To-Start Relay Operation
....................................................................................................................
1-12
CYCLE REVIEW
.............................................................................................................................................................
1-13
GENERAL COMPONENT EXPLODED VIEW
............................................................................................
1-14
SECTION 2.
ELECTRICAL COMPONENTS & TESTING
SECTION 2.
ELECTRICAL COMPONENTS & TESTING
SECTION 2.
ELECTRICAL COMPONENTS & TESTING
SECTION 2.
ELECTRICAL COMPONENTS & TESTING
SECTION 2.
ELECTRICAL COMPONENTS & TESTING
..................................................................
..................................................................
..................................................................
..................................................................
..................................................................
2-1
2-1
2-1
2-1
2-1
ELECTRICAL TEST EQUIPMENT
........................................................................................................................
2-1
ELECTRICAL TESTS
.....................................................................................................................................................
2-2
Grounded Components
.....................................................................................................................................
2-2
Voltage Checks
.........................................................................................................................................................
2-2
Water Valve Test
.......................................................................................................................................................
2-2
Wax Motor Check/Door Lock Mechanism
............................................................................................
2-2
Timer & Console Switches
...............................................................................................................................
2-3
Timer Input Charts
..................................................................................................................................................
2-3
Machine Control
.......................................................................................................................................................
2-5
DRIVE MOTOR
...................................................................................................................................................................
2-7
MOTOR CONTROL BOARD
......................................................................................................................................
2-7
Motor & Motor Control Test
............................................................................................................................
2-8
Motor Phase Test
....................................................................................................................................................
2-8
Motor Windings Check
.......................................................................................................................................
2-9
Tachometer Circuit Diagnostics
.............................................................................................................
2-10
UNBALANCE CONTROL SYSTEM
..................................................................................................................
2-11
Tub Displacement Switch
...............................................................................................................................
2-12
Strut Displacement Switch
............................................................................................................................
2-12
Inertial Unbalance Switch
...............................................................................................................................
2-13
Cabinet Vibration Sensor
...............................................................................................................................
2-13
Cabinet Vibration Absorber
.........................................................................................................................
2-13
CONTENTS
CONTENTS
CONTENTS
CONTENTS
CONTENTS
16008373-01
© 1998 Maytag Corporation
CONTENTS
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