Viking VGR30 Service Manual page 32

TROUBLE SHOOTING GUIDE
PROBLEM
5. Gas flows to bake/broil
burner but does not light
6. Fan motor does not operate.
7. Oven light does not operate.
8. Oven light stays on.
9. Oven indicator light does
not come on.
10. No spark at top burners.
11. Delayed ignition on top
burner.
PROBABLE CAUSE
5A. Ignitor position too far
from burner.
5B. Dirt or grease in orifice.
5C. Insufficient gas pressure.
5D. Gas supply.
6A. No power to the fan motor.
6B. Defective fan motor winding
or frozen motor shaft.
7A. Burned out bulb.
7B. Defective light switch.
7C. Defective light socket.
8A. Defective light switch.
9A. No power to the indicator
Light.
9B. Defective indicator light.
10A. No power.
10B. Broken innitor.
10C. Wire connection.
Pinched wire.
10D. Valve switch
10E. Defective spark module.
11A. Electrode position.
11B. Clogged ports on burner.
32
CORRECTION
5A. Reposition ignitor closer to the bake/broil
burner.
5B. Clean the orifice.
5C. Check for correct gas pressure . Pressure
should be 5" WCP for natural gas or 10"
WCP for LP gas.
5D. Check oven shut off valve located on the
manifold.
6A. Check for 120VAC supplied to the fan
motor. If no voltage is present, check the
selector switch for continuity and, check
for broken wiring between the selector
switch and fan motor. If voltage is
present at the fan motor proceed to 6B.
6B. Check the motor winding for continuity.
Check for a frozen motor shaft and check
check for broken wiring between the
motor and neutral terminal block.
7A. Replace bulb.
7B. Check light switch contacts for continuity.
7C. Check for 120VAC the light socket
terminals. If voltage is present, replace
the light socket. If no voltage is present,
check for broken wiring between the light
switch and light socket.
8A. Check light switch contacts for continuity
Replace light switch.
9A. Check for broken wiring between the
Thermostat and indicator and from the
indicator to the neutral terminal block.
9B. Check for 120VAC at the indicator
terminal. If voltage is present, replace
the indicator light.
10A. Check power source.
10B. Replace spark electrode.
10C. Check connection between spark
electrode and spark module.
10D. Check continuity on valve switch. It no
continuity replace switch. If continuity
checks ok, check all wire connections.
10E. Replace spark module.
11A. Align electrode with burner port.
11B. Clean or replace burner.