Troubleshooting Procedures
© Viking Range Corporation
SMC-0002
11
Problem
Possible Cause
Correction
No spark when any knob is engaged
120 VAC not supplied to unit ............
Loose wiring harness connection .....
Bad connection to ground.................
Burner base not grounded
................
Damaged spark leads sparking onto
nearby metal
.....................................
Grease or dirt build up around
igniter
................................................
Weak or failed spark module ............
Verify 120 VAC at wall outlet
•
Check all connections for loose
•
connection, corrosion, and
contamination
Check all ground connections for
•
continuity
Check continuity to ground
•
through burner base
Visually check in low-light for
•
sparking and voltage leaks due to
corona effect
Clean and dry
•
Replace spark module
•
No spark when one knob is engaged
Open micro switch/harness
connection ........................................
120 VAC not supplied to micro
switch................................................
Switch is not properly seated on
valve stem ........................................
Damaged spark lead/igniter..............
Check for continuity through
•
switch and to module - replace
harness if faulty
Verify 120 VAC at switch
•
according to wiring diagram
Carefully reposition switch on
•
valve and verify the switch is
functional (see Component
Testing Procedures)
Inspect spark lead/igniter -
•
replace if faulty
Random sparking after ignition
Bad connection to ground.................
Polarity reversed at line voltage .......
Current to ground through flame too
low ....................................................
Verify a clear path to ground.
•
Clean and dry all metal contact
points along ground path to
ensure continuity
Verify proper polarity at power
•
receptacle.
The unit will spark if the current
•
sensed by the module drops
below 0.2μA. If sparking is most
prominent in low flame settings,
adjust low flame setting on valve
stem.
To avoid risk of electrical shock, personal injury, or death; disconnect power and shut off gas to unit before
servicing, unless testing requires power.
