Whirlpool GVW9959K-0 manual Opr Fld, Pressure Switches, LOG Valve Assembly

Page 19

PRESSURE SWITCHES

The washer uses two pressure switches to control the amount of water entering the tub and to protect against an overfill condition. The operating pressure switch, marked OPR, controls the amount of water that enters the tub during normal wash and rinse functions. This switch operates in the same manner as similar pressure switches through a pressure switch tube, diaphragm and switch. The switch contact is normally closed and will open on pressure rise.

The overfill pressure switch, marked FLD, is used to guard against failure of the operating pressure switch or an overfill condition caused by the consumer adding water to the basket. The overfill pres- sure switch operates in the same manner as the operating pressure switch, except it’s trip setting is slightly higher than the operating pressure switch. The switch contact is normally closed and will open on pressure rise. These pressure switches are NOT interchangeable.

If an overfill condition is detected, the overfill switch will signal the electronic control which causes it to discontinue the current cycle. “FL” will flash on the control panel display and the beeper will repeat a warning every 10 seconds. The pump is cycled in drain mode for a half minute on, half minute off until the overfill switch is reset or power is disconnected from the washer. If the flood switch does reset, the washer will remain in standby mode with “FL” displayed. It will not automatically restart the cycle.

OPR FLD

Fig. 2-11

LOG VALVE ASSEMBLY

The log valve assembly consists of an inlet valve with hot and cold water valves and solenoids for incoming water supply and four (4) outlet valves for the water to exit the valve body. The outlets drive the dispensers under the washer top and allow for fresh water fill. Also included in the log valve assembly, is the thermistor which is used to monitor incoming water temperature.

Detergent Dispenser Outlet Valve

Hot Water Inlet Valve

Bleach Dispenser Outlet Valve

Cold Water Inlet Valve

Fresh Water Outlet Valve	Thermistor
Fabric Softener Dispenser Outlet Valve		Fig. 2-12

15

Image 19

Contents Page Introduction Table of Contents MODEL/SERIAL Number Plate Serial Number Designator SafetyModel Number Designator Model Number G V W 9 9 5 9 K Q For a permanently connected washer InstallationConsiderations Section ONETools needed Parts Supplied DrainSystem ConnectingtheDrainHose InstallationChecklist Use&CareInformation Control Panel Theory of OperationSection TWO NutationOption Descriptions Operational Cycle Default Wash and SpinSoil Level Whitest Whites Water TempAssured Water Temp ATC ThresholdsAdditional Options End of Cycle SignalMotor Controller Machine ControllerDrive Motor Leveler Peekaboo ModeUniversal Joint Drive System Interlock SwitchesShield Capacitor LOG Valve Assembly Pressure SwitchesOPR FLD Recirculation Recirculation and DrainWater Pump/Pump Motor Outer TubChanging Options after pressing Start DrainChanging Cycles and Options Changing Cycles 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 Garments are labelled Hand Wash because HandwashExtra Rinse Soak CycleExtend Spin Cycle Rinse & Spin When to use Rinse & SpinTo use or change Rinse & Spin settings Suds Lock Detection/CleanoutComponent Location Component AccessSpecial TOOLS/PARTS Required for Service Section ThreeElectrostatic Discharge ESD Sensitive Electronics Accessing Components in the ConsoleRemoving the Motor Control Board Removing the ConsoleRemoving Console Components Removing the Machine Control BoardRemoving the Log Valve Assembly Removing the Pressure SwitchesRaising the Washer Top to the Service Position Accessing Components Beneath the Washer TOPKet. Fig Removing Components in the Tub18b Reassembling Tub ComponentsTab Components Accessible with Front Cabinet Panel Removed Accessing Components Beneath the TUBRemoving the Front Cabinet Panel Motor mounting bracket to the motor plate Servicing Components from the Bottom of the WasherRemoving the Drive Motor Removing the Thrust Plate32 shows all the components of the thrust plate assembly Removing the Brake Assembly/Nutate ShaftReplacing the Capacitor Removing the Pump and Pump MotorReplacing the Outer Tub Troubleshooting Chart Troubleshooting and DiagnosisSection Four Motor Overheats OverfillsWon’t Nutate Won’t SpinIncorrect Water TemperatureWon’t Drain Washer VibratingLoad is Wrinkled Power FailureProcessor Reset ErrorLimit Lid Switch ErrorLong Drain Average CurrentSuds Lock Self Diagnostic RoutinesAutomatic Service Diagnostics Mode Open LidPressSOAK Cycle Signal Soak Cycle Signal Manual Diagnostic ModeRunning Nutate or Spin Nutate and Recirculate Test Pump Drain/RecirculationWater Inlet and Dispenser VALVE, Operating PS Test If a single LED does not light up Console Switches and Indicators TestIf none of the LEDs light up If a particular group of LEDs does not light upChecking Touchpad Functioning KEY Switch MatrixChecking Drive and Pump Motor Continuity Sales Demo Mode120VAC Electrical Supply Troubleshooting TestsWater Inlet and Dispenser Solenoid Test Machine Control Relay Motor and Motor Control System TestMotor Controller Drive Motor and Wiring Harness Automatic Temperature Control TestIf the fill valves are working properly Drain/Recirculation Test Operating and Over Fill Pressure Switch TestPage Page Tech Tips Wiring DiagramSection Five Warranty Information Component Resistance ChartUnited States Rprt