- Appliance
- Viking professional range oven
- Reported symptom
- Ignition fault
- Parts replaced
- Spark plug
- Location
- Montlake, Seattle
What the customer reported
The oven was not lighting reliably — the sort of intermittent fault that is easy to misdiagnose without meter readings.
What we found
With the oven open and a meter on the circuit, the spark plug was the component that failed under test. Testing first is what kept this to a single part rather than a guess-and-replace.
What we did
Replaced the spark plug and confirmed ignition from cold across repeated cycles.
Why this happens
Intermittent ignition faults are where parts get replaced unnecessarily. A meter on the circuit answers in minutes what guesswork answers in two visits and three parts.
Where this job was
The same repair is part of our regular routes across the rest of Seattle and the Eastside: