Manuals / Brands / Laundry Appliance / Washer/Dryer / Maytag / Laundry Appliance / Washer/Dryer

Maytag 16010061 Strut Displacement Switch, Tub Displacement Switch

1 157

Download 157 pages, 8.27 Mb

© 1998 Maytag Corporation

16008373-01 SECTION 2. ELECTRICAL COMPONENTS & TESTING 2-12

RPM FUNCTION

47 ...........................Tumble

47-85 .......................Distribution

90-250.....................Accelerate Through

Critical

250-499..................Accelerate Through

Critical

500-575..................High Speed Acceleration

- WILL DROP TO 450 RPM

600-675..................High Speed Acceleration

- WILL DROP TO 555 RPM

>675.......................High Speed Acceleration

- WILL DROP TO 650 RPM

750-800.............TOP SPIN SPEED

Figure 2-12

Strut Displacement Switch

The strut displacement switch is clipped to the

top of the left rear strut. The switch senses

the outer tub bottoming out on the strut as

the machine accelerates above 90 rpm. This

is caused by the twisting motion of the outer

tub. This additional switch is required because

the twisting motion may not trip the outer tub

displacement switch. The primary cause for

activation would be an unbalance at the front

and rear of the spinner on opposite sides.

The strut displacement switch is wired in se-

ries with the tub displacement switch and

causes the same type of redistribution.

Testing the Strut Displacement Switch:

1. Disconnect power to the unit.

2. Place ohm meter leads across the two ter-

minals of the switch. Depress the button

on the switch. If the contacts close, the

switch is good. If not, replace the switch.

Tub Displacement Switch

The tub displacement switch is located on the

upper right hand side of the outer tub, below

the top concrete weight, between the outer

tub and the cabinet. The switch senses the

outer tub touching the cabinet side as the

machine passes through critical. When this

switch is tripped, the machine stops and re-

distributes the load.

Testing the Tub Displacement Switch:

1. Disconnect power to the unit.

2. Place ohm meter leads across the two ter-

minals of the switch. Depress the button

on the switch. If the contacts open, the

switch is good. If not, replace the switch.

Whenever a displacement switch is tripped,

the machine stops and redistributes the

clothes load. This involves a three (3) second

pause, followed by a five (5) second reverse

tumble (47-49 rpm) to redistribute the clothes

load. The washer will pause again for three

(3) seconds, then start the distribution profile

again. To redistribute the load, the machine

tumbles the load (50-90 rpm) and again at-

tempts to pass through critical (about 150

rpm). The machine will try to redistribute

twice as the washer attempts to spin at 800

rpm.

Once the load is properly redistributed and

the speed reaches above 500 rpm, the inertial

switch and cabinet vibration sensor are used.

If the inertial switch or sensor is activated, the

washer will drop in spin speed. This is based

upon the speed at which switch activation

takes place. See Figure 2-12 outlining the spin

speed categories and the corresponding re-

duced speeds. If the switches are not acti-

vated, the final spin speed will reach a maxi-

mum of 850 rpm and then drop to find the

optimum performance level, based upon

readings taken by the cabinet vibration sen-

sor. Consumers may be confused by the up-

and-down cycling of the motor. However, the

machine is searching for the optimal speed

performance.

Contents

Main Page INTRODUCTION MAH3000 CONTENTSCONTENTS CONTENTSCONTENTS CONTENTS Page Page SECTION 1. GENERAL INFORMATION PRE-INSTALLATION REQUIREMENTS Checkpoints for proper installation: UNCRATING INSTRUCTIONS INSTALLATION GROUNDING POLARITY CHECKS 1998 Maytag Corporation 16008373-01 SECTION 1. GENERAL INFORMATION 1-4 Figure 1-6 SPECIFICATIONS WASHER CONTROLS Prior To Series 17 INPUT DEFINITIONS Series 17 & Later Page OUTPUT DEFINITIONS Page CYCLE SEQUENCE DEFINITIONS MISCELLANEOUS Door Latch Switch Monitoring Door Lock/Spin Control Redistribution Push-To-Start Relay Operation CYCLE REVIEW Main Wash Time/Total Cycle Time - Minutes (See Notes). T umble P attern Page SECTION 2. ELECTRICAL COMPONENTS & TESTINGSECTION 2. ELECTRICAL COMPONENTS & TESTING 2-12-1 2-12-1 2-1 ELECTRICAL TEST EQUIPMENTELECTRICAL TEST EQUIPMENT ELECTRICAL TEST EQUIPMENTELECTRICAL TEST EQUIPMENT ELECTRICAL TEST EQUIPMENT ELECTRICAL TESTS Water Valve Test Voltage Checks Wax Motor Check - Door Lock Mechanism Grounded Components Timer & Console SwitchesTimer & Console Switches 2-32-3 2-3 Timer & Console SwitchesTimer & Console Switches Timer & Console Switches Timer Input ChartsTimer Input Charts (Figure 2-2)(Figure 2-2) Key: 0 = Input Signal Not Asserted 1= Input Signal Asserted Machine ControlMachine Control 2-52-5 2-5 Machine ControlMachine Control Machine Control Page MOTOR CONTROL BOARDMOTOR CONTROL BOARD Motor ControlMotor Control (Figure 2-6). (Figure 2-6). 2-72-7 2-7 MOTOR CONTROL BOARDMOTOR CONTROL BOARD MOTOR CONTROL BOARD Motor & Motor ContrMotor & Motor Contr 2-82-8 2-8 Motor & Motor ContrMotor & Motor Contr Motor & Motor Control Tol T (See Section 3: T(See Section 3: T Motor Phase TMotor Phase T Motor Windings Check TT 2-102-10 2-10 TT Tachometer Cirachometer Cir achometer Cirachometer Cir achometer Circuit Diagnosticscuit Diagnostics cuit Diagnosticscuit Diagnostics cuit Diagnostics UNBALANCE CONTROL SYSTEMUNBALANCE CONTROL SYSTEM 2-112-11 2-11 UNBALANCE CONTROL SYSTEMUNBALANCE CONTROL SYSTEM UNBALANCE CONTROL SYSTEM Strut Displacement Switch Tub Displacement Switch Cabinet Vibration Sensor Cabinet Vibration Absorber Inertial Unbalance Switch Page SECTION 3. TROUBLESHOOTINGSECTION 3. TROUBLESHOOTING 3-13-1 3-1 SECTION 3. TROUBLESHOOTINGSECTION 3. TROUBLESHOOTING SECTION 3. TROUBLESHOOTING electrical power to theelectrical power to the Warning Warning 3-23-2 3-2 3-33-3 3-3 Page Page Page Page Page Page Page Page Page Page MISCELLANEOUS INFORMATIONMISCELLANEOUS INFORMATION MISCELLANEOUS INFORMATIONMISCELLANEOUS INFORMATION MISCELLANEOUS INFORMATION SECTION 4. CONSOLESECTION 4. CONSOLE SECTION 4. CONSOLESECTION 4. CONSOLE SECTION 4. CONSOLE VERTICAL SWITCHESVERTICAL SWITCHES 4-24-2 4-2 VERTICAL SWITCHESVERTICAL SWITCHES VERTICAL SWITCHES (Push Button)(Push Button) HORIZONTAL SWITCHESHORIZONTAL SWITCHES (Push Button)(Push Button) (Push Button) TIMER REMOVALTIMER REMOVAL 4-34-3 4-3 TIMER REMOVALTIMER REMOVAL TIMER REMOVAL Page SECTION 5. CABINET ASSEMBLY DOOR ASSEMBLY & HINGES (Figure 5-1). Figure 5-1 Cabinet Vibration Absorber (Figure 5-3) (Figure 5-2). (Figure 5-4) FRONT PANEL DOOR LOCK MECHANISM (Figure 5-7) (Figure 5-6) (Figure 5-5) (See Dispenser Assembly) FRONT SHROUD ASSEMBLY (See Front Panel & Top Cover). (Figure 5-8). (Figure 5-9). Electrical-Mechanical Troubleshooting. CABINET ASSEMBLY w/REAR ACCESS PANEL (Figure 5-11) Page SECTION 6. WATER-CARRYING COMPONENTS FRONT REMOVAL (See Front Panel & Top Cover Removal). WATER VALVE REAR REMOVAL AIR DOME HOSE REMOVAL FROM CONSOLE (See Figure 6-3). (See Console (See Figure 6-2). DISPENSER ASSEMBLY FRONT WATER FLUME INJECTOR (See Front Panel & Top Cover (See Front Shroud Assembly Removal) (See Outer Tub Cover Removal). PUMP ASSEMBLY Pump Accessory Kit DRAIN HOSE (Fig- ure 6-10). Page SECTION 7. OUTER TUB & SPINNER ASSEMBLY DOOR BOOT (See Front Panel, Top and Front Shroud Removal). (See Figure 5-6) Note the orientation ribs on the outer tub cover and the locating notches in the door boot seal lip. OUTER TUB COVER (See Front Panel, Top Cover, and Front Shroud Removal). (See Front Shroud). SPIN BASKET ASSEMBLY w/BALANCE RING (See Front Panel, Top cover, Front Shroud, Outer Tub Cover and Rear Baffle (Figure 7-4). (See Baffle (Figure 7-5). DRIVE PULLEY (Figure 7-6). SPINNER TUB SUPPORT SEAL SYSTEM (See Spinner Tub Support Removal). 7-8). (Figure 7-9). (See Front Panel). OUTER TUB ASSEMBLY BEARINGS COUNTER WEIGHTS STRUT ASSEMBLY (See Front Panel, Top Cover and Front Shroud Removal). Strut Displacement Switch INERTIAL UNBALANCE SWITCH (See Front Panel & Top Cover TUB DISPLACEMENT SWITCH Page SECTION 8. MOTOR DRIVE SYSTEMSECTION 8. MOTOR DRIVE SYSTEM SECTION 8. MOTOR DRIVE SYSTEMSECTION 8. MOTOR DRIVE SYSTEM SECTION 8. MOTOR DRIVE SYSTEM DRIVE BELTDRIVE BELT DRIVE BELTDRIVE BELT DRIVE BELT DRIVE MOTOR MACHINE CONTROLMACHINE CONTROL 8-28-2 8-2 MACHINE CONTROLMACHINE CONTROL MACHINE CONTROL MOTOR CONTROLMOTOR CONTROL 8-38-3 8-3 MOTOR CONTROLMOTOR CONTROL MOTOR CONTROL REMOVALREMOVAL Page Page Page Page Page Page Page Page Page INTRODUCTION Models covered in this manual supplement: MAH4000 MAH5500A CONTENTS 2 SECTION 1. MAH4000/MAH5500A CONTROL FACIA SECTION 2. SPECIFICATIONS SECTION 3. BASIC MACHINE OPERATION SECTION 4. WASHER CONTROLS OVERVIEW SECTION 5. CYCLE REVIEW Cycle Times: Stain Cycle: Page SECTION 7. ELECTRICAL INFORMATION &2,/:$7(59$/9( SECTION 8. WATER CARRYING COMPONENTS Page Page Page Page Page Page Page Page Page MAYTAG INTRODUCTION Models covered in this manual supplement: MAH5500B MAH7500A CONTENTS Page SECTION 1. GENERAL INFORMATION SPECIFICATIONS 1-1 1-2 BASIC MACHINE OPERATION General Flow Of A Complete Wash Cycle 1-3 CYCLE SEQUENCES Number of Rinses: Wash Time Tumble: Basic Tumble Patterns: Rinse Tumble Times: 1-4 ON/OFF SEQUENCE OF PUMP DURING SPIN CYCLE INPUT WATER TEMPERATURE SECTION 2. WASHER CONTROLS OVERVIEW Features of MAH7500 (LCD Washer): BASIC CONTROL BOARD PHILOSOPHY FOR BOTH WASHERS: Features of MAH5500B (LED Washer): USER INTERFACE SELECTIONS: (LED Washer) DISPLAY CHARACTERISTICS INPUT MODIFICATIONS DEFINED OUTPUT MODIFICATIONS DEFINED CYCLE SEQUENCE DEFINITIONS Page MISCELLANEOUS Page Page LED WASHER: Page Page DIAGNOSTIC CODES: ACCESSING SERVICE MODE Page Page SYSTEM CHECK DIAGNOSTIC/HELP CODES 3-1 Section 3: DIAGNOSTIC/HELP CODE TABLES. HELP CODES LISTING: 41)desutoN( 3-2 "FP" 054 oot tsaf 3-3 3-4 DIAGNOSTIC CODES LISTING: 3-5 3-6 Page Glossary of T erms Page Page SECTION 4. ELECTRICAL COMPONENTS & TESTING ELECTRICAL TESTS Grounded Components Water Valve Test Door Lock Test Page INPUT/OUTPUT VOLTAGES (LCD Washer) INPUT/OUTPUT VOLTAGES (LED Washer) Page DRIVE MOTOR Motor Control Access MOTOR CONTROL BOARD Page HEATER ASSEMBLY Thermistor Temperature Chart SECTION 5. TEARDOWN & WIRING INFORMATION CONSOLE COVER PLUG CABINET ASSEMBLY DOOR LATCH HOOP DOOR LOCK MECHANISM REAR ACCESS PANEL WATER SYSTEM COMPONENTS PUMP ASSEMBLY HEATER ASSEMBLY Page WIRING INFORMATION MAH5500B