GE PDE9900 manual Water Valve and Flood Switch, Water Valve Test

Page 25

Water Valve and Flood Switch

The water valve is a 120 VAC solenoid valve that is switched on/off by the control module. The flood switch acts as a safety switch ONLY and does not control normal operation of the water valve. The flood switch opens the L1 side of the water valve circuit.

The switch is normally open. The weight of the

flood switch float holds the switch closed. The flood switch will not stop the flow of water if the valve sticks open from a mechanical failure.

The water valve can be replaced with the dishwasher installed.

WARNING: Disconnect power to dishwasher before servicing water valve and flood switch.

The flood switch is held in place by 2 Phillips head screws.

Flood Switch

Water Valve Test

Note: The detergent pump will also operate during the water valve test.

1.Attempt to activate water valve using Service Mode. Pump out water as necessary using Service Mode. If an intermittent failure is suspected, activate water valve 5 times using Service Mode. Water valve should stay on for 75 to 95 seconds per activation and should not turn on and off during the 75 to 95 second activation time. A normal fill will be approximately 1.2 gallons.

2.If the water valve is not operating properly or water level is low, check the following:

•Water valve, flood switch, flood switch float and stem, transorb, and then main control. The flood switch should open when the water level is approximately 1/4-in. above the base (bottom) of the float dome.

•Resistance through the water valve solenoid coil is 725 Ω to 1200 Ω.

•Clogged screen in water valve.

The water valve is secured to the frame by 2 hex head screws.

Water Valve

Note: To prevent leaks after installation, ensure that hose-to-valve connection is good and that clamp is in place.

J2-5

J2-5

Water Valve Strip Circuit

PDW9700 Series and PDW9900 Series

WATER VALVE

FLOOD

SWITCH

PINK YEL.WHITE

 

 

 

 

C

NO

725 - 1200 Ω

 

 

PDW8900 Series

FLOOD

 

SWITCH

WATER VALVE

PINK YEL.WHITE

 

 

 

 

C

NO

725 - 1200 Ω

 

 

 

 

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Contents Technical Service Guide Important Safety Notice Table of Contents W 9 9 8 0 L 0 0 S S NomenclatureModel Number Serial NumberIntroduction PDW8900 Series Control FeaturesSelections Enhancements Start PDW8900 Series Shown Inside Cabinet View Component Locator ViewsLeft Side View PDW8900 Series Shown Door ViewPDW8900 Series Shown Bottom View PDW9000 Series ShownFront of Dishwasher Rear of DishwasherDoor Panel PDW9700 Series and PDW9900 Series Dishwasher ComponentsPDW8900 Series Keypad Assembly PDW9700 Series and PDW9900 Series SmartDispenseTM Calibration Water Hardness Test and Calibration Test Water HardnessWater Hardness Test Strip Indication Front Mount Control PDW8900Detergent Reservoir SmartDispenseTMTo remove the reservoir Detergent Level Sensor Approximate Detergent Use Positive Displacement PumpTo remove the pump Customer Purge of the Bulk Dispenser Tank When to Purge the Bulk Dispenser TankConsumer Purge Cycle Detergent/Rinse Module Door Interlock Switchfirst time the module is activated Removal and Replacement Using the Dishwasher with the Upper Rack RemovedMiddle Spray Arm Main Conduit Upper Spray ArmFill Funnel Lower Spray Arm, Fine Filter, and Inlet CoverHeating Element Test Turbidity SensorCalibrating the Turbidity Sensor Drain System Smart Fill System Water Valve Test Water Valve and Flood SwitchWash Cycles Demo ModeControl Module Board Control ModuleActive Vent Normal Wash Cycle Single Rack WashTMWax Motor and Magnet Circulation Pump and MotorDoor Spring Installation Description Time Service ModeEntering Factory Test Mode Factory Test ModeVerify operation after Schematics and Strip CircuitsPDW9900 Series PDW9700 SeriesFor The Period GE Will Replace Warranty for 2005 ProductFor The Period GE Will Replace Warranty for 2006 and Later Product
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