A La Cornue surface burner that will not light usually has a clogged burner port, a worn spark electrode, or a valve issue. Spills and heat take a toll on these parts over years of use.
The fix is to clean the ports, replace the electrode, and service the valve so the burner lights cleanly. As with the oven, the diagnosis is by symptom rather than a code.
Symptom and Error Guide
| Code / Symptom | What It Means | What We Do |
|---|---|---|
Won't light | Clogged port or worn electrode | Clean the ports, replace the electrode |
No spark | Failed electrode or ignition wire | Replace the electrode or wire |
Weak flame | Partial blockage or valve issue | Clean the burner, service the valve |
What We Check
- Oven burner that lights then goes out
- Surface burner that will not ignite
- Oven that heats unevenly or runs cool
- Weak or low flame on a burner
Keeping the burner caps and ports clean and dry prevents most ignition trouble. We handle the range's brass and steel with care during every service.
Want This Handled by a Technician?
Book online or call during confirmed business hours. Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.
When to Call a Technician
If the fix involves the sealed system, the gas system, or a control board, or if a fault returns after you clear it, it is time to have it diagnosed properly. We serve Wellesley and nearby neighborhoods with genuine OEM parts and written service terms.