GE PDE9900 manual Entering Factory Test Mode

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Factory Test Mode

Always run the factory test mode to calibrate when replacing the turbidity sensor, control module board, and membrane key panel.

The factory test mode is the most accurate way to test the turbidity sensor circuit, which contains the control module, wiring, and turbidity sensor. Factory test mode will test the thermistor (used for automatic temperature control) that is contained in the turbidity sensor and will test the transmitter that is contained in the turbidity sensor.

Entering Factory Test Mode

Note: This mode can only be entered within the first 2 minutes after power-up. After 2 minutes, factory test mode is unavailable.

Disconnect power from dishwasher. Wait 10 seconds and connect power to dishwasher. Press the Normal and Cookware ("Up" and "Down" on Top Control Models) keypads simultaneously for 3 seconds. (This step must be performed within 2 minutes of power-up.) The control will step through the test cycle for the preset amount of time. Press Delay/Hours to advance to the next step.

TEST CYCLE

1.All LEDs illuminate for 10 seconds.

2.Vent fan energizes for 5 seconds, then the active vent closes.

3.Detergent module is activated. Water valve energizes for 60 seconds.

4.Main pump is energized. Water valve continues filling for an additional 10 seconds.

5.Heater is energized and main pump continues to run for an additional 60 seconds.

6.Dishwasher pauses for 40 seconds. During this time the turbidity sensor, control module board, and membrane keypad are being calibrated.

a. The control module will beep continuously and the lock icon LED will light if:

1)The temperature sensor check does not fall between the limits (42°F to 199°F).

2)The control receives an analog signal outside the expected range for the turbidity sensor.

3)The EEPROM was not read correctly.

7.Drain pump energizes for 75 seconds.

8.The detergent module is energized for 60 seconds and the water valve is energized for 70 seconds.

9.The heater and main pump are energized for 60 minutes. (Press DELAY/START DELAY/HOURS on some models to advance to the next step before control times out.)

10.Active vent opens, drain pump is energized for 75 seconds, then active vent closes.

Note: If the calibration test fails, check the following:

•Make certain the dishwasher is not located on a non-insulated outer wall where the temperature at the turbidity sensor may be below 42°F.

•The turbidity sensor may be dirty. Run a rinse only cycle with one cup vinegar or use citric acid crystals (WD35X151) to clean the sensor.

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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 DishwasherDishwasher Components Door Panel PDW9700 Series and PDW9900 SeriesPDW8900 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 PDW8900SmartDispenseTM Detergent ReservoirTo remove the reservoir Detergent Level Sensor Positive Displacement Pump Approximate Detergent UseTo remove the pump When to Purge the Bulk Dispenser Tank Customer Purge of the Bulk Dispenser TankConsumer Purge Cycle Door Interlock Switch Detergent/Rinse Modulefirst time the module is activated Using the Dishwasher with the Upper Rack Removed Removal and ReplacementMiddle Spray Arm Main Conduit Upper Spray ArmFill Funnel Lower Spray Arm, Fine Filter, and Inlet CoverHeating Element Turbidity Sensor TestCalibrating 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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