Viking Professional VGSO100 User manual

Service
Manual
30” Gas
Single Wall Oven
Preferred Service
VGSO100
SMC-0006A
Feb 2012
®
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.
This Base Manual covers general and
specic information including, but not
limited to the following models:

Table of Contents
2©2012 Viking Preferred Service
Safety Information ............................................ 3
Warnings ...........................................................4
Electrical Requirements .................................... 4
Manual Shut-Off Valve: .................................... 5
Pressure Regulator: .......................................... 5
Flexible Connections: ....................................... 5
Rigid Connections: ........................................... 5
Model – Serial Number Matrix .........................6
Oven Main Panel ..............................................7
Service Situation Chart .................................... 9
Parts Location – Control Panel ...................... 10
Parts Location – Rear Oven ........................... 11
Parts Location – Top ....................................... 12
Parts Location – Main Oven ........................... 13
Door Removal ................................................. 14
Door Reinstallation ......................................... 14
Component Testing ........................................ 15
Troubleshooting Guide ................................... 16
RTD Sensor .................................................... 17
Cavity Lights ...................................................17
High Limit ........................................................ 18
Cooling Fan Switch ......................................... 18
Convection Fan Motor .................................... 18
Control ............................................................19
Electronic Thermostat ..................................... 19
Selector Switch ............................................... 20
DSI Module ..................................................... 20
Test Procedures – DSI Module ....................... 21
Bake and Broil Solenoids ............................... 22
VGSO100 Oven (Units manufactured before
serial # 072711C00029673 ............................. 23
VGSO100 Oven (Units manufactured after se-
rial # 072711C00029673 ................................ 24

Important Information
©2012 Viking Preferred Service 3
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 products.
It is possible, however, that during its lifetime, a product may require service. Products should
be serviced only by a qualified service technician that is familiar with the safety procedures
required in the repair and who is equipped with the proper tools, parts, testing instruments, and
the appropriate service manual.
Safety Information
We have provided many important safety
messages in this manual and on the appliance.
Always read and obey all safety messages.
This is the safety alert symbol.
This symbol alerts you to hazards that can kill
or hurt you and others. All safety messages will
be preceded by the safety alert symbol and the
word “DANGER”, “WARNING”, or “CAUTION”.
These words mean:
IMMEDIATE HAZARDS WHICH WILL RESULT IN
SEVERE PERSONAL INJURY OR DEATH.
Hazards or unsafe practices which COULD result in
severe personal injury or death.
Hazards or unsafe practices which COULD result in
minor personal injury or product or property damage.
All safety messages will identify the hazard, tell
you how
to reduce the chance of injury, and tell you
what can
happen if the instructions are not followed.
To avoid risk of serious injury or death, repairs should
not be attempted by unauthorized personnel.
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.
Technical support for authorized servicers:
1-800-914-4799
Address your written correspondence to:
Viking Preferred Service
1803 HWY 82 West
Greenwood, MS 38930
!
DANGER!
WARNING!
CAUTION!
WARNING!
CAUTION!

General Information
4©2012 Viking Preferred Service
Warnings
Read and follow all instructions before using
this appliance to prevent the potential risk of
re, electric shock, personal injury, or damage
to the appliance as a result of improper usage
of the appliance. Use appliance only for its
intended purpose as described in this manual.
To ensure proper and safe operation:
appliance must be properly installed and
grounded by a qualied technician. DO
NOT attempt to adjust, repair, service, or
replace any part of your appliance unless it
is specically recommended in this manual.
All other servicing should be referred to a
qualied servicer. Have the installer show you
the location
of the gas shut-off valve and how to shut off in
an emergency.
DANGER!
Fire/explosion hazard.
IF THE INFORMATION IN THIS MANUAL IS
NOT FOLLOWED EXACTLY, A FIRE
OR EXPLOSION MAY RESULT CAUSING
PROPERTY DAMAGE, PERSONAL INJURY,
OR DEATH.
• DO NOT store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
• WHAT TO DO IF YOU SMELL GAS
- Do not try to light any appliance.
- Do not touch any electrical switch.
- Do not use any phone in your building.
- Immediately call your gas supplier from
a neighbor’s phone.
- Follow the gas supplier’s instructions.
- If you cannot reach your gas supplier,
callthefiredepartment.
Installation and service must be performed
by a qualied installer, service agency, or the
gas supplier.
Electrical Requirements
Check your national and local codes
regarding this unit. These ovens require
3-wire, 120 VAC/60 Hz.
WARNING!
Electrical shock hazard.
To avoid the risk of electrical shock,
personal injury or death; verify electri-
cal power is turned off at the breaker
box and gas supply is turned off until the
oven is installed and ready to operate, in-
stallation by an authorized installer only.
WARNING!
Electrical shock hazard.
Disconnect the electric power at the main
fuse breaker before replacing bulb.
Gas Connection
The gas supply (service) line must be the
same size or greater than the inlet line of the
appliance. This oven uses a 1/2” (1.3 cm) ID
NPT (Sch40) inlet. Sealant on all pipe joints
must be resistive to LP gas.
The oven is designed specically for natural
gas or liquid propane (LP) gas. It is shipped
from the factory adjusted for use with natural
or propane (LP) gas. Before beginning
installation verify that the model is compatible
with the intended gas supply.
Gas leak hazard.
To avoid risk of personal injury or death; leak
testing of the appliance must be conducted
according to the manufacturer’s instructions.
Before placing appliance in operation, always
check for gas leaks with soapy water solution.
DO NOT USE AN OPEN FLAME TO
CHECK FOR GAS LEAKS
DANGER!

General Information
©2012 Viking Preferred Service 5
Manual Shut-Off Valve:
This installer-supplied valve must be installed
in the gas service line before the appliance
in the gas stream and in a location where
it can be reached quickly in the event of an
emergency.
In Massachusetts: A “T” handle type manual
valve must be installed in the gas supply line
to the appliance.
IMPORTANT: Any conversion required must be
performed by your dealer or a qualied licensed
plumber or gas service company. Please provide
the service person with this manual before work
begins.
Pressure Regulator:
• All heavy duty, commercial type equipment
must have a pressure regulator on the
incoming service line for safe and efcient
operation, since service pressure may
fluctuate with local demand. External
regulators are not required on this oven
since a regulator is built into each unit at the
factory. Under no condition bypass this built-in
regulator.
• Manifold pressure should be checked with a
manometer, natural gas requires 5.0” W.C.P.
and LP gas requires 10.0” W.C.P. Incoming
line pressure upstream from the regulator
must be 1” W.C.P. higher than the manifold
pressure in order to check the regulator. The
regulator used on these ovens can withstand
a maximum input pressure of 1/2” PSI (14.0”
W.C.P.). If the line pressure is in excess of
1/2” PSI (14.0” W.C.P.), a step down regulator
will be required.
• The appliance must be disconnected from the
gas supply piping system during any pressure
testing of that system.
Flexible Connections:
If the unit is to be installed with flexible
couplings and/or quick-disconnect fittings, the
installer must use a heavy-duty AGA design-
certified flexible connector of at least 1/2” (1.3
cm) ID NPT (with suitable strain reliefs) in
compliance with ANSI Z21.41and Z21.69.
Rigid Connections:
Incoming gas from the service supply is
brought from an intake pipe (not supplied) to
the back center of the unit through the shut-
off valve (not supplied) to the regulator. (See
“Cutout Dimensions” section for gas inlet
location.)
In Canada: CAN 1-6, 10-88 metal connectors
for gas appliances and CAN 1-6.9 M79 quick
disconnect devices for use with gas fuel.
In Massachusetts: This appliance must be
installed with a 36” (3-foot) long flexible gas
connector.
WARNING!
WARNING!
DO NOT use the handl e or oven door to lift
the oven. Remove door before installation to
ensure that it is not used to lift the unit.
NEVER use this applian ce as a space heater
to heat or warm the room. Doing so may
result in carbon monoxide poisoning and
overheating of the oven.
CAUTION!
CAUTION!
Before placing the oven into operation,
always check for gas leaks with a soapy
water solution or other acceptable method.
DO NOT USE AN OPEN FLAME TO CHECK
FOR LEAKS.
DO NOT use the handle or oven door to lift
the oven. DO NOT lift or carry the door by the
handle. Removing the door must be done by
your dealer, a qualified licensed plumber, or
certified gas installer.

General Information
6©2012 Viking Preferred Service
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.
Model Numbers V G S O 1 0 0 S S
Viking Professional Series
Gas
Single
Oven
30" Wide
Stainless
Serial Numbers
02 15 12 C0000264
Month
Day
Year of Manufacture
Serial Number
The model and serial number tag is located on
the inner frame to the lower left behind the door
on older model units.

Operation
©2012 Viking Preferred Service 7
OVEN
OFF OFF
OVEN
LIGHT
BROIL BAKE 200
BROIL
CONV .
BROIL
CONV.
BAKE
CLOCK MIN/SEC
TIMER
SET
BAKE
TIME
ST AR T
TIME
300 500
400
OVEN FUNCTION TEMPERA
TURE
Oven Main Panel
Interior
Oven Light Control The
oven has interior oven
lights that are controlled
by one switch on the
control panel. Push the
switch to turn the interior
oven lights on and off. Oven Function
Selector
Electronic Timing Center The
Electronic Timing Center is used
to program and control all timing
functions.
IMPORTANT–The time-of-day
must be set before any
other program can be used.
Off/On Indicator light
Temperature Control
Each oven has a separate
temperature control dial. The
controls can be set at any
temperature from 200˚ F (93° C)
to 550˚ F (288° C). ALWAYS be
sure the controls are in the “OFF”
position when the ovens
are not in use.
BAKE (Natural Airflow Bake)
Use this setting for baking, roasting, and
preparing casserole dishes.
Convection Bake
Use this setting to bake and roast foods at
the same time with minimal taste transfer.
BROIL (Infrared Broil)
Use this setting for broiling dark meats at
1” thickness or less where rare or medium
doneness is desired.
CONVECTION BROIL (Infrared Convection
Broil)
Use this setting to broil thick cuts of meat.
Convection Dehydrate (CONVECTION
BAKE) Use this function to dehydrate fruits
and vegetables.
Convection Defrost (CONVECTION BAKE)
Use this function to defrost foods.

Operation
8©2012 Viking Preferred Service
The 30” Single Wall Oven models offer the following cooking cycles:
Bake
(Natural Airflow Bake)
Full power heat is radiated from the U-shaped
bake burners in the bottom of the oven cavity and
is circulated with natural airflow. This function is
recommended for single rack baking. Many
cookbooks contain recipes to be cooked
in the conventional manner. Conventional
baking is suitable for dishes that require a high
temperature. Use this setting for baking and
preparing casserole dishes.
natural airflow bake
Convection Bake
convection bake
Heat is radiated from the U-shaped bake burners
in the bottom of the oven cavity. The heated air
is circulated by one motorized fan in the rear of
the oven providing a more even heat distribution.
Multiple rack use is possible for the largest baking
job. When roasting, cool air is quickly replaced—
searing meats on the outside and retaining more
juices and natural flavor on the inside with less
shrinkage. This even circulation of air equalizes
the temperature throughout the oven cavity
and eliminates the hot and cold spots found in
conventional ovens.
Broil (Infrared Broil)
The broil burner at the top of the oven heats the
metal screen until it glows. Heat radiates from the
GourmetGlo™ infrared broiler located at the
top of the oven cavity. The distance between the
foods and the broil elements determines broiling
speed. For “fast” broiling, food may be as close as
2 inches (5 cm) to the broil element or on the top
rack. “Fast” broiling is best for meats where rare
to medium doneness is desired. Use this setting
for broiling small and average cuts of meat.
Convection Broil
(Infrared Convection Broil)
The top element operates at full power. This
function is exactly the same as regular broiling
with the additional benet of air circulation by
the motorized fan in the rear of the oven. Smoke
is reduced since the airflow also reduces peak
temperatures on the food. Use this setting for
broiling thick cuts of meats.
infrared broil
infrared convection broil

Operation
©2012 Viking Preferred Service 9
Service Situation Chart
The chart below is a basic overview of the serviceability and accessibility of components in the oven.

Service Procedures
10 ©2012 Viking Preferred Service
Parts Location – Control Panel