Component Testing; Troubleshooting Guide - Viking VGBQ300-2RE2 Service Manual

Service Diagnostics and Procedures
To avoid risk of electrical shock, personal injury, or death, disconnect gas supply and electrical power to unit
before servicing. After servicing, reconnect electrical power and gas supply.

Component Testing

Component
Igniter
Ignition Switch (pressed)
Ignition Switch (open)
Rotisserie Switch (On)
Rotisserie Switch (Off)
Transformer
Transformer

Troubleshooting Guide

Below are some general guides should a problem be detected. Please refer to the test procedures in this
manual to determine the defective component.
Problem
E-Series grill won't light
when ignition switch is
pressed
Burner flame is yellow
or orange with gas odor
present
Low heat with knob on
"High"
Burner will not light
Burner light, but will not
hold flame once button is
released
Grill rotisserie fails to
operate
© 2011 Viking Preferred Service
Volts Ohms
120V 0
N/A 0
N/A Open
N/A 0
N/A Open
120 400
2.5 4.4
Probable Cause
Gas Supply
Control Knob
Igniter
Grill Valve
Burner inlet
Air shutter
Gas supply line
Gas supply
Gas pressure
Burner Orifice
Air Shutter
Igniter
Clogged Ports
Thermocouple
Thermocouple
Safety valve button
Infrared screen
Electrical cord
Circuit breaker
Power supply
WARNING
Amps Test Location
N/A Base to tip
N/A Switch leads
N/A Switch leads
N/A Switch leads
N/A Switch leads
N/A Input leads
N/A Output leads
Correction
Verify gas is on and available.
Verify control knob is off.
Verify spark when ignition switch is pressed.
Verify gas is flowing from valve
Verify no obstructions are present.
Verify proper adjustment.
Verify the line is not restricted.
Verify adequate sufficient supply.
Verify proper gas pressure.
Verify no debris or obstructions.
Verify opening is not too far open or too far closed
Verify continuity and no cracks.
Verify no debris in ports.
Verify spark at thermocouple.
Verify thermocouple is not kinked.
Hold button until burner remains lit.
Verify no black spots on screen.
Verify secure connection.
Verify breaker is not tripped or fuse is blown.
Verify power is available.
36