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Whirlpool GHW9100L, GHW9200L Touch Pad/LED Assembly, Central Control Unit (CCU), Motor Control Unit (MCU), Drive Motor

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Touch Pad/LED Assembly

Fig. 3-10

The Touch Pad/LED Assembly,

(Fig. 3-10)

, is removed as a single assembly and is connected to

the Central Control Unit by a ribbon cable. This assembly contains all of the buttons, LEDs and

ribbon cable and printed circuit boards for the user to operate the washer. This interfaces the

consumer inputs to the Central Control Unit.

Ribbon Cable

Touchpad/LED

Assembly

Central Control Unit (CCU)

The Central Control Unit is located at the top rear

of the washer and is enclosed in a control box.

(Fig. 3-11)

There are no serviceable parts inside

the control box. If diagnostic tests indicate any

component of the CCU is defective, the entire con-

trol box must be replaced.

The CCU receives input from the touchpad/LED

assembly and directly controls the dispenser,

drain pump, water inlet valves, door locking and

unlocking solenoids, and heating element relay.

The CCU monitors the pressure switch, flowme-

ter, temperature sensor and door lock switches.

The CCU sends the customer selection input to

the Motor Control Unit for proper motor operation.

Motor Control Unit (MCU)

The Motor Control Unit is located is inside a plas-

tic control box located in the lower front corner of

the washer cabinet.

(Fig. 3-12)

The control box

is shown with the access door open.

Fig. 3-11

The MCU operates the drive motor at varying

speeds and direction based on inputs received

by the CCU to complete the cycle selected. The

MCU also monitors a tachometer on the motor to

confirm that the drive motor is operating at the

proper speed and direction.

Drive Motor

The drive motor

(Fig. 3-13)

is a three-phase asyn-

chronous induction type that operates at various

speeds and direction based on input voltages and

frequencies. A tachometer on the motor shaft

sends a feedback signal to the Motor Control Unit

indicating the rotation speed and direction.

Fig. 3-12

Fig. 3-13

Contents

Main FORWARD GOAL AND OBJECTIVES TABLE OF CONTENTS Page ! WARNING ! DANGER GENERAL IMPORTANT SAFETY INFORMATION WHIRLPOOL MODEL & SERIAL NUMBER DESIGNATORS MODEL NUMBER SERIAL NUMBER CS L36 50001 GW 0H 9100 WL SPECIFICATIONS WHIRLPOOL PEDESTAL WARRANTY Full One-Year Warranty on Mechanical parts. Warranty Restriction WHIRLPOOL WASHER WARRANTY WARRANTY 2 - 1 Optional Pedestal INSTALLA TION INFORMA TION INSTALLATION REQUIREMENTS Tools and Parts 2 - 2 Drain System GROUNDING INSTRUCTIONS Electrical Requirements INSTALLATION INSTRUCTIONS Remove Transport System 2 - 4 Route the Drain Hose Connect the Inlet Hoses Secure the Drain Hose 2 - 5 Level the Washer Complete Installation INSTALLATION INSTRUCTIONS Pedestal Fig. 2-1 Fig. 2-2 (Fig. 2-2) Installing the Pedestal (Fig. 2-3) Fig. 2-6 Fig. 2-3 (Fig. 2-4) Page THEORY OF OPERA TION INTRODUCTION Fig. 3-2 Fig. 3-1 Air Vent System Pressure Switch (Fig. 3-7) Fig. 3-7 Fig. 3-8 Customer Interface and Cycle Selection CYCLE DESCRIPTION Soak Rinse/Spin Drain/Spin PRESET CYCLE SETTINGS Table 3-1 Page Fig. 3-9 Options Modifiers Table 3-4 Water Temperature Guide Touch Pad/LED Assembly Fig. 3-10 Fig. 3-13 (Fig. 3-13) Fig. 3-11 Pump Motor Eco Valve Suspension System Door Lock/Switch Assembly Heating Element and Temperature Sensor Heating Element Relay Panel Interlock Switches Page 4 - 1 COMPONENT ACCESS COMPONENT LOCATION WASHER TOP WASHER BACK WASHER FRONT COMPONENT ACCESS ACCESSING COMPONENTS IN THE CONSOLE REMOVING THE WASHER DOOR AND DOOR SWITCH REMOVING THE WASHER FRONT PANEL (Fig. 4-14) Fig. 4-15 REMOVING THE BOOT FROM THE TUB ASSEMBLY REPLACING THE BOOT AND DOOR SWITCH REMOVING THE DETERGENT DISPENSER ASSEMBLY (Fig. 4-16) Fig. 4-18 Fig. 4-16 (Fig. 4-16) REMOVING THE DRIVE MOTOR (Fig. 4-22) Fig. 4-21 (Fig. 4-21) (Fig. 4-20) ACCESSING THE MOTOR CONTROL UNIT REMOVING THE SHOCK ABSORBERS REMOVING THE TUB AND BASKET ASSEMBLY REMOVING THE HEATING ELEMENT AND TEMPERATURE SENSOR REMOVING THE HEATING ELEMENT RELAY Page REASSEMBLING AND REINSTALLING THE TUB ASSEMBLY 5 - 1 COMPONENT TESTING CENTRAL CONTROL UNIT Connector Location COMPONENT CHECKS Pressure Switch Water Level Test Points Reading Temperature Sensor Results Temperature Page 5 - 4 MOTOR CONTROL UNIT Connector Location } } Door Switch Door Closed 2 to 1 0 ohms Door Open 2 to 1 Infinity Heating Element Relay Solenoid Page HEATING ELEMENT and TEMPERATURE SENSOR HEATING ELEMENT RELAY SOLENOID DIAGNOSIS & TROUBLESHOOTING SUDS DETECTION During Drain Routine During Spin (Extract) Routine Kill-Foam Routine DOOR LOCKING AND UNLOCKING Locking Unlocking Child Security Routine Page 6 - 4 F/H F/02 F/05 F/07 6 - 5 F/06 F/10 F/09 F/11 F/13 Sud F/14 F/15 F/dL F/dU Indication Control Action Actuators to be Checked DIAGNOSTIC TEST Overview Test Program Starting the test mode Test Program Control during Execution Page TROUBLESHOOTING GUIDE 6 - 10 PROBLEM POSSIBLE CAUSE/TEST 6 - 11 PROBLEM READING THE CYCLE CHARTS Page Page Page Page Page Page Page 6 - 20 SPIN PROFILES WHIRLPOOL GHW9100L Spin Cycle LS1 Spin Cycle LS2 6 - 21 6 - 22 Spin Cycle LS3 Spin Cycle LS4 Spin Cycle ES Page Page TECH TIPS MANUAL DOOR LATCH Fig. 8-1 Fig. 8-2 (Fig. 8-2) (Fig. 8-1) Page PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION SOURCES