Whirlpool GVW9959K-0 manual Drive System, Interlock Switches, Shield Capacitor

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DRIVE SYSTEM

The Drive Motor operates the nutate and spin functions by reversing direction. The Drive Motor is linked to the drive mechanisms by a stretch belt. The belt transfers the motion of the Drive Motor to a Drive Pulley. The Drive Pulley has a splined hub, into which the Nutate Shaft is inserted and is in motion in whichever direction the Drive Pulley is turning. The Drive Pulley, Drive Motor and Drive Belt all turn in a clock-wise direction, as viewed from underneath when the system is Nutating. The Drive Motor reverses direction for Spin and causes the Drive Pulley to turn in a counterclockwise direction, as viewed from underneath. When turning in this direction, an actuating bump in the hub of the Drive Pulley will contact the Brake Release pawl on the Spin Tube/Brake assembly. This releases the brakes and allows the basket to spin.

Spin Tube/Brake

Assembly

Brake Release

Pawl

Drive Motor

Drive Pulley

Drive Belt

Fig. 2-8

Fig. 2-9

INTERLOCK SWITCHES

There are two (2) Interlock Switches located behind the front panel and the bottom panel that ground the drive motor circuit when either panel is removed. When the machine is running with both panels in place, the drive motor is electrically isolated from ground.

The interlock switches are normally closed and held open when the panels are in place. Removing either panel grounds the drive motor for safety, but still allows it to operate. This condition may allow enough current leakage to ground to trip a Ground Fault Interrupter outlet. It is not recommended to operate the washer with either panel removed. The drive motor can only be tested for continuity in the field. The drive motor must be disconnected from the electrical source before testing.

Shield Capacitor

	A capacitor is in series with the interlock switches and the lower	Shield
	harness shield to reduce electrical interference created by the drive	Shield
		Capacitor
	motor’s operation. The capacitor is a component of the lower
	wiring harness. If the capacitor has failed, the complete lower wiring
	harness must be replaced.	Fig. 2-10
		Fig. 2-10

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Contents Page Introduction Table of Contents Safety MODEL/SERIAL Number Plate Serial Number DesignatorModel Number Designator Model Number G V W 9 9 5 9 K Q Section ONE InstallationConsiderations For a permanently connected washerTools needed Parts Supplied DrainSystem ConnectingtheDrainHose InstallationChecklist Use&CareInformation Nutation Theory of OperationSection TWO Control PanelOperational Cycle Default Wash and Spin Option DescriptionsSoil Level ATC Thresholds Water TempAssured Water Temp Whitest WhitesEnd of Cycle Signal Additional OptionsMachine Controller Motor ControllerDrive Motor Peekaboo Mode LevelerUniversal Joint Interlock Switches Drive SystemShield Capacitor Pressure Switches LOG Valve AssemblyOPR FLD Outer Tub Recirculation and DrainWater Pump/Pump Motor RecirculationChanging Cycles after pressing Start DrainChanging Cycles and Options Changing Options after pressing StartOperational Cycle Notes Drive Motor Notes Pump Drive Description Water Description Water Pump Drive Duration Description Water Pump Drive Pump Drive Description Action Speed Pump Drive Description Delicate/Casual SPIN+RECIRC+FILL Wash Detergent PS Controlled Recirc Spin Handwash Garments are labelled Hand Wash becauseSoak Cycle Extra RinseExtend Spin Cycle Suds Lock Detection/Cleanout When to use Rinse & SpinTo use or change Rinse & Spin settings Rinse & SpinSection Three Component AccessSpecial TOOLS/PARTS Required for Service Component LocationAccessing Components in the Console Electrostatic Discharge ESD Sensitive ElectronicsRemoving the Machine Control Board Removing the ConsoleRemoving Console Components Removing the Motor Control BoardRemoving the Pressure Switches Removing the Log Valve AssemblyAccessing Components Beneath the Washer TOP Raising the Washer Top to the Service PositionRemoving Components in the Tub Ket. FigReassembling Tub Components 18bTab Accessing Components Beneath the TUB Components Accessible with Front Cabinet Panel RemovedRemoving the Front Cabinet Panel Removing the Thrust Plate Servicing Components from the Bottom of the WasherRemoving the Drive Motor Motor mounting bracket to the motor plateRemoving the Brake Assembly/Nutate Shaft 32 shows all the components of the thrust plate assemblyRemoving the Pump and Pump Motor Replacing the CapacitorReplacing the Outer Tub Troubleshooting and Diagnosis Troubleshooting ChartSection Four Won’t Spin OverfillsWon’t Nutate Motor OverheatsWasher Vibrating TemperatureWon’t Drain Incorrect WaterError Power FailureProcessor Reset Load is WrinkledAverage Current Lid Switch ErrorLong Drain LimitOpen Lid Self Diagnostic RoutinesAutomatic Service Diagnostics Mode Suds LockManual Diagnostic Mode PressSOAK Cycle Signal Soak Cycle SignalRunning Nutate or Spin Pump Drain/Recirculation Nutate and Recirculate TestWater Inlet and Dispenser VALVE, Operating PS Test If a particular group of LEDs does not light up Console Switches and Indicators TestIf none of the LEDs light up If a single LED does not light upKEY Switch Matrix Checking Touchpad FunctioningSales Demo Mode Checking Drive and Pump Motor ContinuityTroubleshooting Tests 120VAC Electrical SupplyWater Inlet and Dispenser Solenoid Test Motor and Motor Control System Test Machine Control RelayMotor Controller Automatic Temperature Control Test Drive Motor and Wiring HarnessIf the fill valves are working properly Operating and Over Fill Pressure Switch Test Drain/Recirculation TestPage Page Wiring Diagram Tech TipsSection Five Component Resistance Chart Warranty InformationUnited States Rprt