Model reference

Viking VDB450

Name: Viking VDB450
Brand: Viking

Dishwasher

15 documents75 error codes3 service modes

Available documentation

Service Manual

Service Manual - Built-In Dishwasher59 pg
Covers this model
Service Manual - Preferred Service59 pg
Covers this model
Preferred Service Service Manual - Built-in Dishwasher29 pg
Covers this model
Service Manual - Built-In Dishwasher61 pg
Covers this model
Service Manual Dishwasher SMK 0001D Viking Made VDB450 DFB450 DFUD45029 pg
Covers this model

Bulletin

450 Series Control Board Retrofit16 pg
Covers this model
Ordering machine controllers and user interfaces2 pg
Covers this model
450 Dishwasher control kit1 pg
Covers this model
Replacement of pressure sensor2 pg
Covers this model
Technical Bulletin - Replacement of pressure sensor2 pg
Covers this model
Dishwasher Rack Repair Kit1 pg
Covers this model
Dishwasher Rack Repair Kit number 027733-0001 pg
Covers this model

Job Aid

Spray Arm Nut and Tamper Pin Repair Instruction Sheet3 pg
Covers this model
Start Switch and Cover2 pg
Covers this model
Dishwasher Rack Repair Kit Instructions3 pg
Covers this model

MyPros+ Max

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Test values, resistance specs, and wiring references
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M+ Max·Viking Dishwasher

1-1 on my Viking VDB450

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Moisture sensor disconnect – moisture

From Service Manual 264735, p.27:

1.Access service mode to confirm the active fault code and read stored error history.

2.Measure control board supply voltage at test points. Expected: 12 VDC and 5 VDC.

3.Inspect all connectors on the main control for corrosion or backed-out pins.

Part WPW10804018

Electronic control board

Error codes (75)

CodeMeaning

1-1Moisture sensor disconnect 1-2Motor control status error 1-3Motor control comms error 1-4Diverter timeout 1-5Drain error 2-1Pressure sensor disconnect error 2-2Fill error 2-3Low level error 2-4High level error 2-5Level sensor error 3-1User interface 3-2Pump flow error 3-3Drain pump error 3-4Motor status error 3-5Motor undervoltage error 4-1Temperature sensor error 4-2Wash heater error 4-3Dispenser error 4-4Inlet valve error 4-5Not defined (listed in table without description).5-1Vent error 5-2Blower error 5-3Dry heater error 5-4Current sense error 5-5Internal error All LEDs flash (except start)AC power loss Circulate Time OutCirculation motor operation has timed out during the wash cycle.Counter Error - User InterfaceCounter error detected in the user interface board.Cycle Error - CirculationCirculation motor or circulation cycle error detected.Cycle Error - DrainDrain cycle error detected; unit unable to complete drain operation.

View all 75 error codes

Cycle Error - Error handlerGeneral cycle error detected by the error handler routine.Cycle Error - Fill Sensor ErrorFill sensor detected an error during the fill cycle.Cycle Error - Motor ControllerInternal control processor error related to the motor controller during a cycle.Data processorInternal data processor error detected on the control board.Diverter ErrorThe wash diverter motor is not operating or responding correctly.Drain ErrorWater is not draining properly from the tub; drain system fault detected.ECONO WASH + LED1Counter Error ECONO WASH + LED2High Water Level ECONO WASH + LED3Cycle Error ECONO WASH + LED4Circulate Time Out Fill ErrorUnit is not filling with water properly; water supply or fill valve fault…Flash all LEDsAC power loss Flash all LEDs but start and run continuouslyAC power loss Flash both LED1 and LED2 continuouslyMoisture sensor water detection Flash LED1+LED2Moisture sensor water detection High Water LevelWater level in the tub has exceeded the normal maximum level.LED1+LED2 flash continuouslyMoisture sensor water detection LIGHT CHINA + LED1State Error LIGHT CHINA + LED2State Error Low Level ErrorWater level in the tub is below the minimum required level.Moisture Sensor ActivatedWater detected in the base pan by the moisture (flood) sensor.Moisture Sensor DisconnectThe moisture sensor circuit is open or disconnected from the control board.Motor Control Communication ErrorCommunication failure between the motor controller and the main control board.Motor Control Status ErrorMotor controller reports a status error; possible wash motor or controller…NORMAL WASH + LED1Moisture Sensor Activated NORMAL WASH + LED2Pressure Sensor Disconnect NORMAL WASH + LED3Cycle Error NORMAL WASH + LED4User Interface NORMAL WASH + LED5Cycle Error NORMAL WASH + LED6Sensor Error POTS PANS + LED1Drain Error POTS PANS + LED2Fill Error POTS PANS + LED3Moisture Sensor Disconnect POTS PANS + LED4Temperature Sensor Disconnect POTS PANS + LED5Cycle Error POTS PANS + LED6Motor Control Communication Error POTS PANS + LED7Motor Control Status Error POTS PANS + LED8Cycle Error POTS PANS + LED9Diverter Error Pressure Sensor DisconnectThe pressure sensor (HUBA) harness is disconnected or the sensor has failed.RINSE HOLD + LED1Low Level Error State Error - Main ControlMain control board has entered an invalid state.State Error - User interfaceUser interface has entered an invalid state.Temperature Sensor DisconnectThe water temperature sensor circuit is open or disconnected from the control…User Interface - Machine Control Communication ErrorCommunication failure between the user interface and the machine control board.

Service modes (3)

diagnosticPress the leftmost program button (Pots/Pans) five times, then immediately press the START button
Diagnostic Mode – 325 ModelPress the leftmost program button (Pots/Pans) five times, then immediately press the START button
Diagnostic Mode – 450 ModelPress the leftmost program button (Pots/Pans) five times, then immediately press the START button

Full entry steps, exit procedures, and test sequences are available in Max.

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