Viking VMOC205SS Testing Method for AH Sensor AND/OR Control Unit, Checking Control Unit

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DMOC205SS

VMOC205SS

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

When the AH sensor is defective (open or short), Error will appear in the display after 16 seconds cleaning time.

If ERROR appears check sensor wire connections and/or AH sensor.

NOTE: ERROR will appear if the door is opened or STOP/CLEAR pad is touched during first stage of sensor cooking.

(6)After approximately 16 seconds, microwave energy is produced, and the display should start to count down the remaining cooking time and oven should turn off after water is boiling (bubbling).

If the oven does not turn off, replace the AH sensor or check the control unit, refer to explanation below.

TESTING METHOD FOR AH SENSOR AND/OR CONTROL UNIT

To determine if the sensor is defective, the simplest method is to replace it with a new replacement sensor.

(1)Disconnect oven from power supply and remove outer case.

(2)Discharge the high voltage capacitor.

(3)Remove the AH sensor.

(4)Install the new AH sensor.

(5)Re-install the outer case.

(6)Reconnect the oven to the power supply and check the sensor cook operation proceed as follows: 6-1. Fill approximately 200 milliliters (7.2 oz) of tap water in a 1000 milliliter measuring cup.

6-2. Place the container on the center of tray in the oven cavity.

6-3. Close the door.

6-4. Touch SENSOR COOK pad and number 1 pad.

6-5. Touch Start pad. The control panel is in automatic Sensor operation.

6-6. The display will start to count down the remaining cooking time, and the oven will turn off

automatically after the water is boiling (bubbling).

If new sensor dose not operate properly, the problem is with the control unit.

CHECKING CONTROL UNIT

(1)Disconnect oven from power supply and remove outer case.

(2)Discharge the high voltage capacitor.

(3)Disconnect the wire leads from the cook relay.

(4)Disconnect the sensor connector that is mounted to lower portion of control panel.

(5)Then connect the dummy resistor circuit (see fig.) to the sensor connector of control panel.

(6)Reconnect the oven to the power supply and check the sensor cook operation proceed as follows: 6-1. Touch SENSOR COOK pad and number 1 pad.

6-2. Touch Start pad. The control panel is in the sensor cooking operation.

6-3. After approximately 20 seconds, push plunger of select switch for more than 3 seconds. This

condition is same as judgement by AH sensor.

6-4. After approximately 3 seconds, the display shows " X X . X X " which is the remaining cooking time, and the display count down.

If the above is not the case, the control unit is probably defective. If the above is proper, the AH sensor is probably defective.

 

 

R1,R2 : 22Ω ± 1% 1/2W

 

 

R3 : 4.3kΩ ± 5% 1/4W

 

 

R4 :

1MΩ ± 5% 1/4W

 

To connector (F)

 

 

 

 

on Control Unit.

 

 

 

F-1

1

 

 

 

2

 

 

COM

F-2

R1

 

3

 

 

F-3

 

 

 

 

 

 

 

 

CONNECTOR

R2

R3

R4

 

 

 

 

Plunger

NC

NO

COM

NO

NC

Sensor Dummy Resistor Circuit

22

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Contents Table of Contents Models DMOC205SS VMOC205SSBefore Servicing DMOC205SS VMOC205SS When the testing is completed Before ServicingMicrowave Measurement Procedure Canada Leakage test with enclosure installedRequirements Leakage test without enclosureMicrowave Measurement Procedure USA Leakage testIf provided, Vent Hood, Fan assembly, Cooling Fan Motor Viking Range CorporationMicrowave Ovens DMOC205SS VMOC205SS Foreword Specification DescriptionHigh MIX. Roast Oven Diagram VMOC205SSPower Level P-0 to P-90 Cooking OperationDescription of Operating Sequence OFF ConditionConvection Cooking Condition Automatic MIX Cooking ConditionSensor Cooking Condition Preheating ConditionFire Sensing Feature Microwave Mode Compu Defrost CookingCompu BROIL/ Compu ROAST/ Compu Bake Cooking SequenceSchematic Diagram Figure O-1. Oven Schematic-OFF ConditionFigure O-3. Oven Schematic-Automatic Mix Cooking Condition Description and Function of Components Troubleshooting Guide Damper OPEN-CLOSE MechanismMicrowave Cooking Damper OperationTest Procedure ProblemPower Transformer Test High Voltage Rectifier TestHigh Voltage Capacitor Test Test Procedures Letter Component Test Primary Interlock Switch and Third Door Switch TestMonitor Switch Secondary Interlock System TestDamper Switch Test Checking Temperature in the Convection ModeHeating Element Test Thermistor TestTouch Control Panel Assembly Test Noise Filter TestTest Procedures Letter Component Test KEY Unit Test Weight 1ST Stage 2ND Stage 3RD Stage 4TH Stage Level TimeRelay Test Compu Defrost TestSteps Occurrence Cause or Correction AH Sensor TestChecking the initial sensor cooking condition Water load cooking testTesting Method for AH Sensor AND/OR Control Unit Checking Control UnitTouch Control Panel Assembly Description of LSIThermistor LSIIXA103DRTemperature measurement input Oven Thermistor Digit selection signalConvection motor driving signal Cooling fan motor driving signalTOR Segment data signals Segment data signalKey strobe signal Absolute Humidity Sensor Circuit Structure of Absolute Humidity SensorServicing Component Replacement and Adjustment Procedure Power Transformer RemovalOuter Case Removal Magnetron RemovalHigh Voltage Rectifier Assembly Removal Positive Lock Connector NO-CASE Type RemovalDamper Assembly Removal High Voltage Capacitor RemovalOven Lamp and Lamp Socket Removal FAN Motor RemovalThermistor Removal Heating Element RemovalPower Supply Cord Replacement Control Panel Assembly and Control Unit RemovalControl Unit and KEY Unit Door Replacement and Adjustment AdjustmentAfter adjustment, check the following RemovalDoor Disassembly Door AdjustmentAfter adjustment, make sure of the following Microwave Measurement Procedure Preparation For TestingLeakage test Leakage Test with Enclosure Installed RequirementFigure S-1. Pictorial Diagram SFigureControl Panel DIP Parts List Electrical PartsCabinet Parts Control Panel PartsDoor Parts MiscellaneousScrews Nuts and Washers LX-NZ0029YBE0 Oven and Cabinet Parts Control Panel Parts Door Parts Packing and Accessories DMOC205SS VMOC205SS Copyright 2004 by Viking

VMOC205SS, DMOC205SS specifications

The Viking DMOC205SS and VMOC205SS are two state-of-the-art microwave ovens that redefine cooking convenience and efficiency. Designed for modern kitchens, these appliances come equipped with a range of features and technologies that enhance their usability and performance.

One of the most notable aspects of the Viking DMOC205SS and VMOC205SS is their powerful cooking capabilities. Both models utilize an advanced cooking system that ensures even heat distribution, resulting in perfectly cooked meals every time. With a robust wattage of up to 1,200 watts, these microwaves can quickly and efficiently prepare a wide variety of dishes.

The DMOC205SS features a spacious interior, offering 2.1 cubic feet of cooking space, making it ideal for larger families or those who frequently entertain guests. The VMOC205SS variant also shares a similar capacity but comes with additional features tailored for versatility. The interior design of both models includes a stainless steel finish that not only enhances durability but also adds a touch of elegance to any kitchen.

Functionality is at the forefront of the Viking DMOC205SS and VMOC205SS. Both models are equipped with multiple cooking modes, including microwave, convection, and grilling options. This multi-functional capability allows users to seamlessly switch between cooking methods, ensuring optimal results for various recipes. The intuitive control panel features easy-to-read buttons and a digital display, making it user-friendly for all cooking levels.

In terms of technology, these Viking microwaves incorporate sensor cooking, which automatically detects the moisture and temperature of food, adjusting cooking times accordingly. This feature not only prevents overcooking but also ensures consistently delicious results. The models also come with pre-programmed cooking settings for popular dishes, making meal preparation simpler and quicker.

Energy efficiency is another critical aspect of the Viking DMOC205SS and VMOC205SS. Both models are designed to minimize energy consumption while maximizing performance, which is beneficial for both the environment and the homeowner’s energy bills.

Safety features are embedded within the design of these microwaves. They include a child lock function to prevent accidental use, as well as a timer that ensures food is cooked for the precise amount of time needed.

In summary, the Viking DMOC205SS and VMOC205SS are exceptional microwave ovens that combine advanced technology, practical features, and stylish design. Their powerful cooking capabilities, user-friendly controls, and energy-efficient operation make them a perfect addition to any modern kitchen. These appliances empower users to explore a wide range of cooking possibilities, bringing convenience and quality to meal preparation.
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