La Cornue Château Grand Palais 180 Cooktop Repair in San Francisco

The Château Grand Palais 180 cooktop is the top-only version of our widest Château, listed at 70 7/8 inches. Because it is a cooktop module and not a full range, there is no oven to consider here. All of the attention goes to the cooking surface, its burners, its ignition and the controls that govern them.

Why a long top needs a methodical look

On a surface this wide, a fault is often local. One burner may fail to light while its neighbours behave normally, which usually points toward that burner’s own igniter, cap, head or valve and away from the supply. We work along the top in order, noting which positions misbehave, because the pattern tells us more than any single symptom.

Things owners report

• A burner that sparks repeatedly but never catches.
• A flame that starts, then goes out when the knob is released.
• Uneven flame shape on one position.
• A knob that turns with little resistance, or is hard to move.
• Clicking that continues after a burner is already lit.

These are descriptions of what you see, not diagnoses. A flame that will not stay lit might be a wet cap after cleaning, or it might be a flame-safety part that needs a technician. Seating and drying the cap is the owner step; anything beyond it stays with us.

How the module is installed

A cooktop module is set into a counter above cabinetry, with the gas connection and any electrical supply below. Wine-country kitchens in Napa and Sonoma and renovated Sea Cliff homes often hide those connections behind custom drawers, so we ask you about the cabinet layout when you book. Ventilation above a top this wide also matters, because the hood has to be matched to the cooking surface for smoke and grease to clear properly.

Before you call

Check that the gas shut-off valve is open and the breaker is on. Lift each cap and head, make sure they are dry and sit flat, and try again. Write down which burner positions are affected. Do not unscrew the top, loosen any gas fitting or reach under the module.

If you also own the full range of this width, see the Château Grand Palais 180 range page. Bookings begin at La Cornue rangetop repair, and the broader lineup is on the La Cornue rangetops page. Diagnosis comes first, you receive a written estimate, and nothing is repaired without your approval.

Frequently asked questions