Gas tops are mechanically simple and that is good news: an igniter, a burner cap and crown, a gas tap and the orifice sized for your gas type. The one that catches people out is the orifice. A range converted from natural gas to propane, or moved between properties, will burn badly until the correct orifices are fitted, and the signs — yellow flame, poor simmer, sooting — read exactly like a worn burner.
Induction zones and the French plaque fail differently, electrically rather than mechanically, and both are worth diagnosing before ordering anything, because the control board and the zone itself present almost the same sign from the cook’s side of the appliance.
Common Cooktop Problems
Burner sparks continuously but the flame will not catch
Flame yellow, uneven around the crown, or lifting off the burner
Induction zone does not detect the pan, or cuts out mid-cook
Simmer setting no longer holds a low flame
French plaque slow to reach heat or no longer hot at the center
Knob stiff, loose, or the gas tap turning past its stop
Cooktop Error Codes
Recognize a code on your display? Look it up before you unplug anything or attempt a repair.
E
La Cornue Induction Hob E Error Code
F
La Cornue Induction Hob F Error Code
U
La Cornue Induction Hob U Symbol (Not an Error)
H
La Cornue Induction Hob H Residual Heat Indicator (Not an Error)
Popular La Cornue Cooktop Models
La Cornue Château Range Cooktop 90 cm
Model # Château Range Cooktop (90 cm, same hob codes as Grand Castel 90)
La Cornue Château Range Cooktop 120 cm
Model # Château Range Cooktop (120 cm, same hob codes as Château 120)
La Cornue Château Range Cooktop 150 cm
Model # Château Range Cooktop (150 cm, same hob codes as Château 150)
La Cornue Château Range Cooktop 165 cm
Model # Château Range Cooktop (165 cm, same hob codes as Château 165)
La Cornue Château Range Cooktop 180 cm
Model # Château Range Cooktop (180 cm, same hob codes as Grand Palais 180)
La Cornue Flamberge Rôtisserie
Model # Flamberge Rôtisserie
Why Trust Us With Your La Cornue Cooktop
- Trained on La Cornue cooktop control systems and diagnostics.
- Genuine OEM parts stocked for the most common failures.
- Upfront flat-rate pricing, approved by you before we start.
- 30-day workmanship warranty on every repair. Parts may carry the manufacturer's warranty where applicable.