Viking DESO527T, DEDO130T, DEDO530T, DESO127T, DESO130T Service Manual

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Service Manual

This manual is to be used by qualied appliance technicians only. Viking does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualied person.

Electric Touch Control Ovens

This Base Manual covers general and

specic information including, but not

limited to the following models:

DEDO127 T

DEDO130T

DEDO527T

DEDO530T

DESO127T

DESO13 0T

DESO527T

DESO530T

VEDO127 T

VEDO130T

VEDO527T

VEDO530T

VESO127T

VESO13 0T

VESO527T

VESO530T

SMC-0004

July 2008

Important Information

SAVE THESE INSTRUCTIONS

REVIEW ALL SERVICE INFORMATION IN THE APPROPRIATE SERVICE MANUAL AND TECHNICAL SHEETS

BEFORE BEGINNING REPAIRS.

Pride and workmanship go into every product to provide our customers with quality appliances. It is possible, however, that during the lifetime of a product service maybe require. Products should be serviced only by a qualified authorized service technician who is familiar with the safety procedures required to perform the repair and is equipped with the proper tools, parts, testing instruments, and the appropriate service manual.

Safety Information

We have provided many important safety messages throughout this manual and on the product. Always read and obey all safety statements. To properly identify a safety statements look for the following safety alert symbol.

This symbol alerts personnel to hazards that can many different types of altering messages. All safety messages will be preceded by a safety alert symbol and the word “DANGER”, “WARNING” or “CAUTION”.

DANGER

Immediate hazards which WILL result in severe

personal injury or death.

WARNING

Hazards or unsafe practices which COULD result

in severe personal injury or death.

CAUTION

Hazards or unsafe practices which COULD result

in minor personal injury, product or property

damage.

All safety messages will identify the hazard, tell you how to reduce the chance of injury, and inform you what can happen if the instructions are not followed.

WARNING

To avoid risk of serious injury or death, repairs

should not be attempted by unauthorized

personnel.

CAUTION

VIKING will not be responsible for any injury or

property damage from improper service

procedures. If performing service on your own

product, you must assume responsibility for any

personal injury or property damage which may

result.

To locate an authorized service agent, call: Viking Customer Service

Phone No. 1-888-845-4641 Address your written correspondence to: Viking Preferred Service

1803 HWY 82 West Greenwood, MS 38930

Warranty Information

Professional Series Built-In Electric Ovens Warranty

One Year Full Warranty

Built-in electric ovens and all of their component parts and accessories, except as detailed below*, are warranted to be free from defective materials or workmanship in normal household use for a period of twelve (12) months from the date of original retail purchase. Viking Range Corporation, warrantor, agrees to repair or replace, at its option, any part which fails or is found to be defective during the warranty period.

*Glass (including light bulbs), painted and decorative items are warranted to be free from defective materials or workmanship for a period of ninety (90) days from the date of original retail purchase. ANY DEFECTS MUST BE REPORTED TO THE SELLING DEALER WITHIN NINETY (90) DAYS FROM DATE OF ORIGINAL RETAIL PURCHASE.

Viking Range Corporation uses the most up-to-date processes and best materials available to produce all color finishes. However, slight color variation may be noticed because of the inherent differences in painted parts and porcelain parts as well as differences in kitchen lighting, product locations, and other factors.

Five Year Limited Warranty

Any bake element, broil element, or convection cook element which fails due to defective materials or workmanship in normal household use during the second through the fifth year from the date of original retail purchase will be repaired or replaced, free of charge for the part itself, with the owner paying all other costs, including labor.

Ten Year Limited Warranty

Any porcelain oven or porcelain inner door panel which rusts through due to defective materials or workmanship in normal household use during the second through the tenth year from the date of original retail purchase will be repaired or replaced, free of charge for the part itself, with the owner paying all other costs, including labor.

This warranty extends to the original purchaser of the product warranted hereunder and to each transferee owner of the product during the term of the warranty.

This warranty shall apply to products purchased and located in the United States and Canada. Products must be purchased in the country where service is requested. Warranty labor shall be performed by an authorized Viking Range Corporation service agency or representative. Warranty shall not apply to damage resulting from abuse, accident, natural disaster, lose of electrical power to the product for any reason, alteration, outdoor use, improper installation, improper operation, or repair or service of the product by anyone other than an authorized Viking Range Corporation service agency or representative. This warranty does not apply to commercial usage. Warrantor is not responsible for consequential or incidental damage whether arising out of breach of contract, or otherwise. Some jurisdictions do not allow the exclusion or limitation of incidental of consequential damages, so the above limitation or exclusion may not apply to you.

Owner shall be responsible for proper installation, providing normal care and maintenance, providing proof of purchase upon request, and making the appliance reasonably accessible for service. If the product or one of its component parts contain a defect or malfunction during warranty period, after a reasonable number of attempts by the warrantor to remedy the defects or malfunction, the owner is entitled to either a refund or replacement of the product or its component part or parts. Warrantor’s liability on any claim of any kind, with respect to the goods or services covered hereunder, shall in no case exceed the price of the goods or service or part thereof which gives rise to the claim.

WARRANTY SERVICE: Under the terms of this warranty, service must be performed by a factory authorized Viking Range Corporation service agent or representative. Service will be provided during normal business hours, and labor performed at overtime or premium rates shall not be covered by this warranty. To obtain warranty service, contact the dealer from whom the product was purchased, an authorized Viking Range Corporation service agent, or Viking Range Corporation. Provide model and serial number and date of original purchase. For the name of your nearest authorized Viking Range Corporation service agency, call the dealer from whom the product was purchased or Viking Range Corporation. IMPORTANT: Retain proof of original purchase to establish warranty period.

The return of the Owner Registration Card is not a condition of warranty coverage. Owner Registration Card so the Viking Range Corporation can contact you should any question of safety arise which could affect you.

Any implied warranties of merchantability and fitness applicable to the above described bake element, broil element, convection cook element, porcelain oven, or porcelain inner door panel are limited in duration to the period of coverage of the applicable express written limited warranties set forth above. Some jurisdictions do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives specific legal rights, and you may also have other rights which may vary from jurisdiction to jurisdiction.

You should, however, return the

111 Front Street, Greenwood, Mississippi (MS) 38930 USA 662-455-1200

Specifications are subject to change without notice.

For more product information, call 1-888-VIKING1 (845-4641), or visit our web

VIKING RANGE CORPORATION

site at http://www.vikingrange.com

Warranty Information

WARRANTY SERVICE

Under the terms of this warranty, service must be performed by a factory authorized Viking Range Corporation service agent or representative. Service will be provided during normal business hours, and labor performed at overtime or premium rates shall not be covered by this warranty. To obtain warranty service, contact the dealer from whom the serial number and date were originally purchased. For the name of your nearest authorized Viking Range Corporation service agency, call the dealer from whom the product was purchased or Viking Range Corporation. IMPORTANT: Retain proof of original purchase to establish warranty period

The return of the Owner Registration Card is not a condition of warranty coverage Registration Card so that Viking Range Corporation can contact you should any question of safety arise which could affect you. Any implied warranties of merchantability and fitness applicable to the above described nylon racks, motor/pump assembly, water distribution system, stainless steel tank, or stainless steel inner door liner are limited in duration to the period of coverage of the applicable express written limited warranties set forth above. Some jurisdictions do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which may vary from jurisdiction to jurisdiction.

VIKING RANGE CORPORATION

111 Front Street • Greenwood, Mississippi 38930 USA

(662) 455-1200

www.vikingrange.com

Specification subject to change without notice

. You should, however, return the Owner

Table of Contents

Description Page

Important Information…………………………… 1

Safety Information………………....................... 2

WARRANTY INFORMATION

Warranty Information……................................. 3

Warranty Service Information.......................... 4

Table of Contents………………........................ 5

GENERAL INFORMATION

Specifications …...………………........................ 6

Heating element technical information ….…...... 7

Control header Molex plug information ….…..... 7

Model –Serial Number matrix …...………….... 8

OPERATION

Oven operation main panel .............................. 9

Sabbath Mode and Lock and Unlock …...…. 10

Bake, Broil TruConvect™ and Conv Bake…… 11 Conv Broil, Conv Roast, Defrost, Dehydrate…. 12 Meat probe - Auto Roast - Proof cycle and Recipe feature…………………………. 13

DIAGNOSTICS

Built-In error codes ……………………………. 14 Accessing the diagnostic program ……………. 15 Running the diagnostic programs - Run all Tests Product Information Test description………….. 16 Individual Display Test – Individual Upper and Lower Test description………………………… 17 Individual Keyboard Test - Run all Upper and Lower test description………………………… 18 Run all keyboard Test description……………… 19

TEST PROCEDURES

1. Run all Tests……………………………… 20- 22

2. Product Information Test ………………. 22

3. Individual Display Tests…………………. 23

4. Individual Upper Oven Tests…………… 24

5. Individual Lower Oven Tests…………… 25

6. Individual Keyboard Tests…………….. 26

7. Run all Upper Oven Tests…………… .. 27

8. Run all Lower Oven Tests……………… 28

9. Individual Keyboard Tests……………. 29

CYCLE CHARTS

Bake………………………………………… 30 Broil………………………………………… 31

TruConvec™……………………………………… 31

Description Page

Convection Bake – Convection Broil………… 32 Convection Roast – Defrost……………… 33 Dehydrate – Proof………..……………… 33 Auto Roast………………….……………… 34 Self Clean……………..…….……………… 34

SERVICE DIAGNOSTICS AND PROCEDURES

Service Situation Chart………………………. 35 Parts location – upper plenum…………………. 36 Parts location – upper plenum…………………. 36 Parts location – Rear upper and lower oven…. 37 Parts location – Center plenum - lower oven…. 38 Door removal……………………………………… 39 Component Testing Chart –RTD Chart………. 40 Component Troubleshooting Guide…………41-43 Cooling Motor testing …………………… 44 Hall Effect Sensor testing ………………... 45 RTD Temperature sensor testing… …………….. 46 Oven Lock Motor testing ………………. .… 47-48 Oven cavity light testing …………………… 49 High Limiter testing ……………………………49-50 Convection Fan Motor testing …………….. 51-54 Main Control – Keyboard testing………. ……… 55 Main Control – Display testing…………………. 56 Relay board and Main Control connection ….. 57

Relay board – Bake element inner……............. 58

Relay board – Outer Bake – Inner Broil……........ 59

Relay board – Outer Broil – Convection……....... 60

Door Interlock Switch…………………………… 61

WIRING AND SCHEMATIC DIAGRAMS

Wiring Diagram – Premiere Model - Single oven and double upper section……………………… 62 Wiring Diagram – Select Model - Single oven and double upper section……………………. 63

Wiring Diagram – Select Model – Lower….... 64

Wiring Diagram – Premiere Model - Lower… 65 Schematic – Single Oven - Select model……. 66

Schematic – Single Oven –Premiere model… 67 Schematic – Double Oven - Select model…… 68 Schematic – Double Oven –Premiere model… 69

Table of Contents Specifications

Select Premiere Professional

Touch

Model Number

Clock Bake Element Broiler Convection

System

Oven Light Meat Probe Electrical

Requirements

27" Wide 30" Wide 27" Wide 30" Wide

VESO127T VEDO127T VESO130T VEDO130T VESO527T VEDO527T VESO530T VEDO530T

Digital Digital

10-Pass Concealed Element 10-Pass Concealed Element

10-Pass Tubular Electric Infrared Glass Enclosed

2-Speed 2-Speed

One One One One Three Three Three Three

No No No No Yes Yes Yes Yes

4-Wire

w/ground,

30 Amp.

Connection

(upper only)

4-Wire

w/ground,

50 Amp.

Connection

2-Speed 2-Speed

4-Wire

w/ground,

30 Amp.

Connection

(upper only)

4-Wire

w/ground,

50 Amp.

Connection

2-Speed 2-Speed

4-Wire

w/ground,

30 Amp.

Connection

(both ovens)

4-Wire

w/ground,

50 Amp.

Connection

2-Speed 2-Speed

4-Wire

w/ground,

30 Amp.

Connection

(both

ovens)

4-Wire

w/ground,

50 Amp.

Connection

Max Amp. Usage Bake Rating Broil Rating TruConvec

Rating

Touch

Model Number Clock Bake Element

Broiler

Convection System

Oven Light Meat Probe Electrical

Requirements

Max Amp. Usage Bake Rating Broil Rating TruConvec

Rating

24 40 24 40 24 40 24 40

3000 Watts 3000 Watts

4000 Watts 3500 Watts

3000 Watts 3000 Watts

Select Premiere Designer

27" Wide 30" Wide 27" Wide 30" Wide

DESO127T DEDO127T DESO130T DEDO130T DESO527T DEDO527T DESO530T DEDO530T

Digital Digital

10-Pass Concealed Element 10-Pass Concealed Element

10-Pass Tubular Electric Infrared Glass Enclosed

2-Speed 2-Speed

One One One One Three Three Three Three

No No No No Yes Yes Yes Yes

4-Wire

w/ground,

30 Amp.

Connection

24 40 24 40 24 40 24 40

(upper only)

4-Wire

w/ground,

50 Amp.

Connection

3000 Watts 3000 Watts

4000 Watts 3500 Watts

3000 Watts 3000 Watts

2-Speed 2-Speed

4-Wire

w/ground,

30 Amp.

Connection

(upper only)

4-Wire

w/ground,

50 Amp.

Connection

2-Speed 2-Speed

4-Wire

w/ground,

30 Amp.

Connection

(both ovens)

4-Wire

w/ground,

50 Amp.

Connection

2-Speed 2-Speed

4-Wire

w/ground,

30 Amp.

Connection

(both

ovens)

4-Wire

w/ground,

50 Amp.

Connection

Heating element information

General information

Volts 240 240 240 240 240

Inner Bake Outer Bake Inner Broil Outer Broil Convection

Amps 6.25 6.25 10.60 6.00 12.50

Watts 1,500 1,500 2,550 1,450 3,000

Ohms 38.00 38.00 22.50 40.00 19.50

Control board headers

The T series wall ovens all use the same main control board. Each board is programmed to the specific model by the use of a control board model select connector (Header). Each connector has a color coded wire Molex plug which connects to the P9 connector of the main control board.

Fig A shows the different Molex header plugs along with the models that each goes with. Models DEDO530T, VEDO530T and VESO530T DO NOT have a header plug. If you change the main control board you must make sure that the header is removed from the old board and placed on the new one. Failure to do so will cause improper operation of the oven. Fig B shows the location of the control header.

FIG A

PE070763

White

Models Models Models

DEDO 527T DESO 530T DEDO 130T VEDO 527T DESO 527T VEDO 130T

VESO 527T

PE070794

Blue

PE070795

Yellow

PE070796

Orange

Models Models

DEDO 127T DESO 130T VEDO 127T DESO 127T VESO 130T VESO 127T

PE070887

Red

FIG B

Model - Serial number matrix

The model number and serial number are located on the data plate. The data plate is located on the top left side of the oven cavity under the control panel.

The board shown here is

configured for a model

DEDO – VEDO 127T.

General information

Model Numbers

Serial numbers

The model and serial number tag is located on the underside of the control panel. FIG A shows the location.

FIG A

Operation

Control Panel

Below is the control panel in its OFF state. In order to operate the oven you need to select either upper or lower (Double oven models). In order to operate the oven, touch either the upper or lower oven touch pad.

The Viking Built-In Touch Control wall oven is available in two versions. The Select and Premiere ovens are identical with the exception of optional functions on the Premiere model. Below are both the Select and the Premiere double oven models.

The Select model has Bake, Broil, True Convection, Convection Bake, Convection Broil, Convection Roast, Defrost, Dehydrate and Self Clean.

The Premiere model has all the features as the Select model with the addition of an Auto Roast and Proof cycles, Meat probe capabilities and a RECIPES function built in. Also, the Premiere model has 3 oven lights in each cavity and both the upper and lower ovens (Double cell models) have the Convection Feature

Clock Displays

When the control panel is activated on both the Premiere and Select models, there is a slight variation in the panel readout. FIG A is the Premiere version and FIG B is the Select version.

FIG A FIG B

Sabbath Mode

Select model (Double oven shown)

Premiere model (Double oven shown)

Operation

Both versions of the Touch control wall oven include a Sabbath mode function. When set to the Sabbath mode, the oven light stays off while the heating elements and the convection fan (in selected convection modes) will stay on whenever the door is opened.

To program:

1. Press “SETTINGS”. Settings menu will appear in the display

2. Press the down arrow until “SABBATH: NO” appears in the display

3. Press “ENTER” or “SET” and “NO” will flash in the display.

4. Use the arrow keys to choose “YES” or “NO.”

5. Press “ENTER” or “SET” again to accept your selection

6. To exit the Settings menu, press “SETTINGS” or “CLEAR”.

In order to disable the Sabbath function, following the procedures outlined above and select “SABBATH: NO”. This will disengage the Sabbath feature.

Lock and Unlock

Both versions of the Touch Control wall oven include a panel lock-out function. This way the oven cannot be activated accidentally or by others not authorized to use the oven.

To activate panel lock:

1. Activate the control panel by either selecting the Upper or Lower oven pads

2. Press and hold the lock Key pad (

3. Hold this pad for 3 seconds until the display reads “PANEL IS LOCKED”

4. You will hear 3 short beeps. The control panel will now be locked.

To deactivate panel lock:

1. Press and hold either the UPPER or LOWER oven pads for 3 seconds.

2. You will hear 2 short beeps and the display will read “PANEL IS UNLOCKED”

) and the display will display “HOLD FOR LOCK”.

Operation

Oven Settings and Functions

The Select and Premiere models both have the followings cook cycles:

Bake, Broil, TruConvec™, Convection Bake, Convection Broil, Convection Roast, Defrost, Dehydrate and Self Clean. The Premiere model Also features an Auto Roast and a Proof Cycle, along with a Meat Probe feature on both the single and double premiere models.

Bake

The Bake cycle utilizes both the inner and outer concealed elements in the floor and the inner and outer broil elements during the bake cycle. The main control board will operate the individual relays on the relay board to control both the preheat cycle as well as the cook cycles. Please refer to the operating matrix on page 30.

Broil

The Broil cycle utilizes both the inner and outer broil elements in the oven cavity during the broil cycle. The main control board will operate the individual relays on the relay board to control both the preheat cycle as well as the cook cycles. Please refer to the operating matrix on page 31.

TruConvec™

The TruConvect ™ cycle utilizes the outer bake element, as well the inner broil and outer broil elements to assist the convection element during the preheat cycle up to 250˚ F. Once this temperature has been achieved, the oven will operate the rear convection element only to provide True Convection. The convection fan will run at LOW speed and changes direction throughout the cycle. The main control board will operate the individual relays on the relay board to control both the preheat cycle as well as the cook cycles. Please refer to the operating matrix on page 31.

Convection Bake

The Convection Bake cycle utilizes the outer bake element, the inner broil and outer broil elements and the convection element during the preheat cycle up to the selected temperature. Once the desired temperature has been achieved, the oven will operate both the inner and outer bake elements and the rear convection element during the cook cycle. The convection fan will run at LOW speed and changes direction throughout the cycle. The main control board will operate the individual relays on the relay board to control both the preheat cycle as well as the cook cycles. Please refer to the operating matrix on page 32.

Operation

Oven Settings and Functions (Cont)

Convection Broil

The Convection Broil cycle gives you three possible broil settings: LOW, MED and HIGH broil. The LOW broil utilizes the inner broil element only up to 350˚ F. The MED broil utilizes both the inner and outer elements up to 450˚ F and the HIGH broil uses the same two elements but heats up to 550˚ Fahrenheit. The convection fan will run at HIGH speed and changes direction throughout the cycle. The main control board will operate the individual relays on the relay board to control both the preheat cycle as well as the cook cycles. Please refer to the operating matrix on page 32.

Convection Roast

The Convection Roast cycle utilizes the inner broil and outer broil elements and the convection element during the preheat cycle up to the selected temperature. Once the desired temperature has been achieved, the oven will operate on the rear convection element 95% of the cook cycle and the inner and outer broil element will operate 5% of the time.

The convection fan will run at HIGH speed and changes direction throughout the cycle. The main control board will operate the individual relays on the relay board to control both the preheat cycle as well as the cook cycles. Please refer to the operating matrix on page 33.

Defrost

The defrost cycle does not utilize any of the heating elements. It simple circulates the ambient air inside the cook cavity. The convection fan will run at LOW speed and changes direction throughout the cycle. The main control board will operate the convection fan relays on the relay board throughout the cycle. Please refer to the operating matrix on page 33.

Dehydrate

The Dehydrate cycle utilizes the Inner bake element only. It simple circulates the heated air inside the cook cavity to a maximum temperature of 90˚ Fahrenheit. The convection fan will run at HIGH speed and changes direction throughout the cycle. The main control board will operate the convection fan relays and inner bake element on the relay board throughout the cycle. Please refer to the operating matrix on page 33.

Operation

Oven Settings and Functions (Cont)

The following functions are available on the Premiere models only

Meat Probe

The meat probe is designed to turn off the oven when the food product reaches its optimal temperature. The meat probe works with the following settings: Bake, Convection Bake, Convection Roast, TruConvec™ and Convection broil. In the Premiere double ovens it is available in the top oven only!

Insert the probe into the socket on the left side wall. Depress the MEAT PROBE button on the left control panel.

The display will show “Set Probe” and flashing a preset temperature. If the preset temperature is not adjusted within 10 seconds, the unit will begin heating. The adjustable temperature range is between 120˚ F and 190˚ F. Use the keypad to select a desired temperature then select “SET”. The unit will begin to heat and the display will show “LO” until the internal temperature of the food reaches 100˚ F. When the temperature is within 10˚ of set temperature, two long beeps will sound. When the setpoint temperature has been reached, three long beeps will sound.

Auto Roast

The Auto Roast cycle is similar to the Convection Roast cycle in all functions with the exception of a SEARING cycle added to the program. The Auto Roast cycle utilizes the inner broil and outer broil elements and the convection element during the preheat cycle up to the selected temperature.

Once the desired temperature has been achieved, the oven will operate on the rear convection element 95% during the cook cycle and a 5% cycle of the inner and outer broil element. During the SEARING cycle, the inner and outer broil elements are the only elements in operation and are on for 45 seconds of each 60 second cycle.

Proof

The Proof cycle is similar to the Dehydrate cycle with the exception that the convection fan is not operated during the Proof cycle. The Proof cycle utilizes the Inner bake element only. The radiant heat rises from the floor of the oven cavity circulates the heated air inside the cook cavity to a maximum temperature of 90˚ Fahrenheit.

The main control board will operate the individual relays on the relay board to control both the preheat cycle as well as the cook cycles. Please refer to the operating matrix on page 33.

Recipe Function

The Premiere model also has the ability to program and store up to 100 of your recipes. Recipes names are entered on the numeric keypad on the right side of the keyboard. Please refer to the Use and Care manual for further information on this function.

Error Screens

The T Series oven will display any errors detected by the microprocessor. There are 8 built in error codes. When activated, the oven will NOT function.

Diagnostics

1. MODEL ERROR

An incorrect model number has been installed.

MODEL ERROR

12:10 PM

2. RTD ERROR

12:10 PM

RTD ERROR

An RTD is open or shorted.

3. PROBE ERROR

PROBE ERROR

12:10 PM

The meat probe is open or shorted.

4. LATCH ERROR

12:10 PM

LATCH ERROR

The control is unable to lock or unlock the door latch.

5. KEYBOARD ERROR

KEYBOARD ERROR

12:10 PM

No connection exists between the keyboard

and the control.

6. HIGH LIMIT ERROR

12:10 PM

HIGH LIMIT ERROR

High Limit switch has tripped.

7. COOLING ERROR

12:10 PM

COOLING ERROR

The cooling fan RPM is below minimum speed

8. RELAY ERROR

RELAY ERROR

12:10 PM

No relay board connection

Diagnostics

Accessing the diagnostic program

1. Activate the main control panel by selecting either the Upper or Lower oven touch pad. Below is the screen you will see when the Upper oven is selected.

UPPER OVEN

12:02

SELECT MODE

CLOCK

2. Depress the “SETTINGS button on the control panel. You will see he word

“SETTINGS” in the upper left corner of the screen and the Brightness parameter

SETTINGS

BRIGHTNESS: 100 %

3. Using the DOWN arrow (

), scroll down until you see “TIMEOUTS… in the display.

SETTINGS

TIMEOUTS · · ·

4. Touch the Down arrow (

) for 5 seconds (you will here 3 tones) until the display changes

from “Timeouts…” to “TESTS…”

SETTINGS

TESTS · · ·

5. Now, depress the “ENTER” key. The word TESTS will begin to flash. While flashing, enter

in the following code: 8 – 4 – 5 – 4 – 6 – 4 (V-I-K-I-N-G). When you have successfully entered in the code, the display will change and read “RUN ALL TESTS”. You are now in the diagnostic mode.

Diagnostics

Running the diagnostic programs

SETTINGS: TESTS

Run all Tests

When you have entered the diagnostic mode, you will be able to run the following nine main test programs:

1. Run all tests

2. Product Information

3. Individual display tests

4. Individual upper oven tests

5. Individual lower oven tests

6. Individual keyboard tests

7. Run all upper oven tests

8. Run all lower oven tests

9. Run all keyboard test

1. Run all test

This test will allow you to check the entire oven, including all the components, display elements and keyboard test. Hit “SET” button to run this test. Please turn to page 20 for the test procedure.

Use the Down arrow to access the next test (Product Information)

SETTINGS: TESTS

Run all Tests

2. Product Information

This test will allow you to view the information page, which contains the software version and microprocessor serial number. Hit the “SET” button to view this information. Please turn to page 22 for the test procedure.

Use the Down arrow to access the next test (Individual display test) or the UP arrow to access the previous test (Run all tests).

SETTINGS: TESTS

Product information

Diagnostics

3. Individual display tests

This test will allow you to check the display LED. Hit the “SET” button to test the display. Please turn to page 23 for the test procedure.

Use the Down arrow to access the next test (Individual upper oven test) or the UP arrow to access the previous test (Product Information).

SETTINGS: TESTS

Individual display tests

4. Individual upper oven tests

This test will allow you to access and test all the upper oven components, including all the elements, cooling fan and speeds (Select models), convection fan, speeds (Select models) and direction, RTD, Meat probe (Select models), door switch, oven lights, door lock and door lock position switches. Hit the “SET” button to test these individual components. Please turn to page 24 for the test procedure.

Use the Down arrow to access the next test (Individual lower oven test) or the UP arrow to access the previous test (Individual display).

SETTINGS: TESTS

Individual upper oven tests

5. Individual lower oven tests

This test will allow you to access and test all the lower oven components, including all the elements, cooling fan and speeds (Select models), convection fan, speeds and direction (Select models), RTD, Meat probe (Select models), door switch, oven lights, door lock and door lock position switches. Hit the “SET” button to test these individual components. Please turn to page 25 for the test procedure.

Use the Down arrow to access the next test (Individual keyboard tests) or the UP arrow to access the previous test (Individual upper oven tests).

SETTINGS: TESTS

Individual lower oven tests

6. Individual keyboard tests

Diagnostics

This test will allow you to check a specific touch sensor pad on the control panel. There are 40 pads in total, depending on your model. Hit the “SET” button to begin this test. Please turn to page 26 for the test procedure.

Use the Down arrow to access the next test (Run all upper oven tests) or the UP arrow to access the previous test (Individual lower oven tests).

SETTINGS: TESTS

Individual keyboard tests

7. Run all upper oven tests

This test will check all the upper oven components in succession. Hit the “SET” button to begin this test. Please turn to page 27 for the test procedure.

Use the Down arrow to access the next test (Run all lower oven tests) or the UP arrow to access the previous test (Individual keyboard tests).

SETTINGS: TESTS

Run all upper oven tests

8. Run all lower oven tests

This test will check all the lower oven components in succession. Hit the “SET” button to begin this test. Please turn to page 28 for the test procedure.

Use the Down arrow to access the next test (Run all keyboard tests) or the UP arrow to access the previous test (Run all upper oven tests).

SETTINGS: TESTS

Run all lower oven tests

9. Run all keyboard tests

Diagnostics

This test will allow check the entire touch sensor pad on the control panel. There are 40 pads in total. Hit the “SET” button to begin this test. Please turn to page 29 for the test procedure.

Use the UP arrow to access the previous test (Run all lower oven tests).

SETTINGS: TESTS

Run all keyboard tests

Diagnostics

TEST CATEGORIES

1. Run all tests

When you have selected this test, the first screen you will see will be the one below.

This test will cycle the entire upper and lower (Double oven model) elements, fans, lights, door interlock switches and door lock motors. It will also test all the individual touch pads on the control panel. To begin the test, select either the SET or ENTER key. Once the test has begun, use the ENTER key, UP arrow ( ) or Down arrow ( the CLEAR key.

STEP TEST RESU LT TO CH A N GE TEST

1 Product information Display will show model, serial and version number of t he software ENTER, or

2 Display all dots and segments All digits in the display will light up ENTER, or

3 Clear screen All d igits in t he display will ext inguish ENTER, or

4 Upper Inner bake element Run inner bake element ENTER, or

5 Upper Out er b ake element Run out er bake element ENTER, or

6 Up per Inner bro il element Run inner broil element ENTER, or

7 Up per Out er broil element Run outer b roil element ENTER, or

8 Upp er Convection element Run convection element ENTER, o r

9 Upp er Oven Temperature Display upper oven temp ENTER, o r

10 Upper Meat probe

11 Up per Cooling Fan - High Speed Run cooling fan at HIGH speed ENTER, or

12 Upper Cooling Fan - Low Speed Run cooli ng fan at Low speed ENTER, or

13 Upper Convection Fan - High speed Run convection fan at HIGH speed ENTER, or

14 Up per Convectio n Fan - Low speed Run convection fan at LOW speed ENTER, o r

15 Upper Conv Fan - Low Speed reverse Run cooling fan at Low speed reverse ENTER, or

16 Upp er Conv Fan - High Speed reverse Run cooling fan at HIGH speed reverse ENTER, or

17 Upper Door Switch Check door int erlock ENTER, or

18 Upper Oven lights Check upper cavity lights ENTER, or

19 Upp er Doo r Lock Door lock moto r is advanced Door must lo ck to advance

20 Upper Door Unlock Engage door lock to UNLOCK door Door must unlock t o advance

* On Premiere models only!

Continued on page 21

SETTINGS: TESTS

Run all Tests

) key to cycle through the tests. To end the test, select

Display meat probe temp

ENTER, or

Diagnostics

Run all tests (Continued)

LO W ER O VEN

21 Lower Inner bake element Run inner bake element ENTER, or

22 Lower Out er bake element Run outer bake element ENTER, or

23 Lower Inner b roil element Run i nner broil element ENTER, or

24 Lower O uter bro il element Run outer broil element ENTER, or

25 Lower Convectio n element Run convection element ENTER, or

26 Lower O ven Temperatur e Display upp er oven t emp ENTER, or

Display meat probe temp

27 Lower Meat probe

28 Lower Cooling Fan - High Speed Run cooling fan at HIGH speed ENTER, or

29 Lower Cooling Fan - Low Speed Run cooling fan at Low speed ENTER, or

30 Lower Convection Fan - High speed

31 Lower Convection Fan - Low speed

32 Lower Conv Fan - Low Speed reverse

33 Lower Conv Fan - High Speed reverse

34 Lower Door Switch Check door int erlock ENTER, or

35 Lower Oven light s Check upper cavity lights ENTER, or

36 Lower Door Lock Door lock motor is advanced D oor must lock t o advance

37 Lower Door Unlock Engage door lock to UNLOCK door Door must unlock t o advance

Run convectio n fan at HIGH speed

Run convectio n fan at LOW speed

Run convectio n fan at Low speed reverse

Run convectio n fan at HIGH speed reverse

KEYBOARD TEST NOTES

38 Press the BAKE key Pressing the Bake key will advance to next test All mo dels

39 Press the BROIL key Pressing the Broil key will advance to next test All models

40 Press the TRU CONVEC key Pressing the Tru Convec key will advance to next t est All mod els

41 Press the UP key Pressing t he key will advance to t he next test All models

42 Press the CON V BAKE key Pressing the Conv Bake key will advance to next t est All models

43 Press the CONV BRO IL key Pressing the Conv Broil key will advance to next t est All mod els

44 Press the CON V ROAST key Pressing t he Conv Roast key will advance to next test A ll models

45 Press the SET key Pressing the SET key will advance to next t est All models

46 Press t he DEFROST key Pressing the Defrost key will advance to next test All models

47 Press the DEHRDRATE key Pressing the Dehydrate key will advance to next test All models

48 Press the SELF CLEAN key Pressing the Self Clean key will advance to next test All models

49 Press the DO WN key Pressing t he key will advance to t he next test All models

50 Press the AUTO ROAST key Pressing the Auto Roast key will advance to next test PREM IERE MO DELS

51 Pree the M EAT PROBE key Pressing the M eat Prob e key will advance to next test PREM IERE M OD ELS

52 Pree the PROO F key Pressing the Proof key will advance to next test PREMIERE M OD ELS

53 Press the CLEAR key Pressing the Clear key will advance to next test All models

54 Press the TIMER key Pressing the Timer key will advance to next test All models

55 Press the COO K TIME key Pressing the Cook Time key will advance to next test All mod els

56 Press the CLOCK key Pressing the Clo ck key will advance to next t est PREM IERE MO DELS

57 Press the STOP TIME key Pressing the Stop Time key will advance to next test All models

58 Press the RECIPES key Pressing the Recipes key will advance to next test PREMIERE M OD ELS

59 Press the CLOCK key Pressing the Clo ck key will advance to next t est SELE CT M O D EL S

* On Premiere models only!

Continued on page 22

ENTER, or

Diagnostics

Run all tests (Continued)

KEYBOARD - CONTIN UED

60 Press the UPPER OVEN key Pressing the Upper Oven key will advance to next test DOUBLE OVEN MODEL

61 Press the OFF key Pressing t he Off key will advance to next test DOUBLE OVEN MODEL

62 Press the O VEN ON key Pressing t he Oven On key will advance to next t est SI N GL E O VEN M O D EL

63 Press the O VEN OFF key Pressing t he Oven Off key will ad vance to next t est SIN G LE O VEN MO D EL

64 Press the LOWER OVEN key Pressing the Lower Oven key will advance to next test DOUBLE OVEN MODEL

65 Press the OFF key Pressing t he Off key will advance to next test DOUBLE OVEN MODEL

66 Pr ess t he UPPER LIGHTS k ey Pressi ng th e ke y w i ll a d vance t o nex t t est DOUBLE OVEN MODEL

67 Press the LIGHTS key Pressing the key will advance to next test SIN G LE O VEN MO D EL

68 Press the 1 key Press the 1 key will advance to next t est All mo dels

69 Press the 2 key Press the 2 key will advance to next t est All mo dels

70 Press the 3 key Press the 3 key will advance to next t est All mo dels

71 Press the LOWER LIGHTS key Pressing t he key will ad vance to next t est DOUBLE OVEN MODEL

72 Press the 4 key Press the 4 key will advance to next t est All mo dels

73 Press the 5 key Press the 5 key will advance to next t est All mo dels

74 Press the 6 key Press the 6 key will advance to next t est All mo dels

75 Press the LOCK Pressing the key will advance to next test All models

76 Press the 7 key Press the 7 key will advance to next t est All mo dels

77 Press the 8 key Press the 8 key will advance to next t est All mo dels

78 Press the 9 key Press the 9 key will advance to next t est All mo dels

79 Press the SETTINGS key Press the Settings key will advance to next test All models

80 Press the ENTER key Press the Enter key will advance to next test All models

81 Press the 0 key Press the 0 key will advance to next t est All mo dels

82 Press the CLEAR key Press the Clear key will advance to END All models

2. Product Information

When you have selected this test, the first screen you will see will be the one below.

Model = 4 Version = 36 S/N = 859014568

Press the Enter key to go to the next test

In this screen you will see the model, version and serial number of the microprocessor. To exit this test, select the ENTER, CLEAR or Down arrow (

) key.

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Viking DESO527T, DEDO130T, DEDO530T, DESO127T, DESO130T Service Manual

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