Viking VGSC305 User Manual

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SERVICE MANUAL

FREE STANDING GAS RANGE

Table of Contents

Questions and Answers:

D
Daniel NicholsonAug 8, 2025
Why does my Viking VGSC305 Ranges burner make a roaring noise like a blowtorch?
- C
  Cheryl WestAug 8, 2025
  The roaring noise, like a blowtorch, indicates a flashback, where the air/gas mixture ignites inside the burner. This could be due to several reasons. The burner might be underrated, in which case you should check the orifice size and increase it if necessary, or increase gas pressure. You may need to adjust the air shutter to reduce primary air. If the flashback occurs when the burner valve is in the off position, the valve is likely leaking and needs to be changed. If these corrections don't work, the burner may need to be replaced.
J
James ParsonsAug 18, 2025
What to do if my Viking Ranges burner makes a popping sound when I turn it off?
- S
  Sean JohnsonAug 18, 2025
  If your Viking Ranges burner makes a popping sound when you turn it off, it's likely an extinction pop, which is a small explosion of gas in the burner head. This is similar to a flashback. You can try to reduce the primary air supplied to the burner, but be careful not to allow yellow tipping during burner operation. Also, check the orifice size and gas pressure.
T
Traci JohnsonAug 28, 2025
How to fix Viking VGSC305 Ranges flashback?
- K
  Kathryn HudsonAug 28, 2025
  To fix a flashback in your Viking Ranges, where the air/gas mixture ignites inside the burner creating a roaring noise, start by checking the orifice size. Increase it if necessary, or increase the gas pressure. Adjust the air shutter to reduce primary air. If the flashback occurs even when the burner valve is off, the valve is probably leaking and needs replacement. As a last resort, replace the burner if the previous steps fail.

Viking VGSC305 Specifications

General

Width	30 inches
Burners	5
Oven Type	Conventional
Ignition System	Electronic
Burner Power	Up to 18, 000 BTU
Material	Stainless Steel
Type	Gas
Color Options	Stainless Steel, Black

Summary

New Viking Model Numbers

Ranges and Rangetops Model Codes

Details specific model codes for different types of ranges and rangetops.

Viking Serial Number Logic

Serial Number Logic for Ranges & 36" Ovens

Logic for serial numbers of ranges and 36" wide ovens.

Viking Product Warranty

Cooking Product Warranty Terms

Warranty terms for gas, dual fuel, and electric ranges.

Product Warranty Continued

Refrigeration Product Warranty Terms

Warranty terms for refrigerators, ice makers, and wine coolers.

Proximity to Side Cabinet Installation

Installation Clearance Requirements

Specifies minimum clearances from cabinets and walls for safe installation.

Gas Connections

Rangetop Cutout and Specifications

Range Leveling

Combustion of Gas

Combustion of Gas (Continued)

Carbon Monoxide and Aldehydes Hazards

Hazards of incomplete combustion products like CO and aldehydes.

Viking Range BTU Requirements

Natural Gas to LP/Propane Conversion

Regulator and Orifice Hood Adjustment

Instructions for adjusting the regulator and burner orifice hoods for conversion.

Infrared Broiler Orifice Spud Change

Procedure for changing the orifice spud for infrared broilers.

Infrared Broiler Orifice Spud Change

Surface Burner Adjustments

Oven Tubular Gas Burner Adjustments

Causes of Oven Odors

Identifies flame conditions that may cause unpleasant odors.

Grill / Griddle Burner Adjustment

Oven Temperature Calibration

Oven Thermostat

Silicon Carbide (Glo-Coil) Ignition

Door Removal

Oven Door Assembly

Control Panel and Landing Ledge Removal

Top Burner Removal

Indicator Light Removal

Bake/Broil Thermostat Removal

Procedure for removing the bake/broil thermostat assembly.

Oven Ignitor Removal Procedure

Steps to remove the oven ignitor from the burner.

Broil Gas Valve Removal

Procedure for removing the broil gas valve.

Top Burner Valves

Oven Burner Removal Procedure

Steps to remove the oven burner assembly.

Infrared Burner

Trouble Shooting Guide

No Bake/Broil Operation Troubleshooting

Troubleshooting for issues with bake or broil operation not working.

Yellow Tipping and Soot Troubleshooting

Addressing yellow tipping flames that produce soot.

Flashback and Extinction Pop Troubleshooting

Troubleshooting flashback and extinction pop issues on burners.

Ignitor Glow Troubleshooting

Diagnosing problems when the bake or broil ignitor does not glow.

Lifting and Fluctuating Flame Troubleshooting

Troubleshooting flames that lift or fluctuate.

No Gas Flow or Improper Flame

Troubleshooting no gas flow or improper flame on burners.

Top Burner Ignition Troubleshooting

Troubleshooting no spark or delayed ignition on top burners.

Floating Flames and Odor Troubleshooting

Diagnosing floating flames and associated odors.

Wiring Diagram Gas Rangetops

Wiring Diagram Gas Convection Ranges

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