La Cornue Gas Leak at Connection or Valve

Strong gas smell around the range, especially when burners or the oven are off.

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Loose gas connection at the rear of the range, damaged flexible gas hose, leaking manifold or burner valve, improperly converted orifice leaking.

How to Fix / Troubleshooting

Critical safety warning: If you smell strong gas, do not operate any electrical switches, do not use open flames, and evacuate the area. Contact your gas supplier or emergency services immediately.

Shut off gas: If safe to do so, close the manual gas shutoff valve to the range.
Ventilate: Open windows and doors to disperse gas.
Leak detection: Once the area is safe and with gas turned back on, a qualified technician should apply a soap solution to all accessible joints and watch for bubbles indicating leaks.
Repair/replace components: Tighten fittings to specified torque, replace damaged flex hoses, and replace any leaking valves or manifolds with La Cornue-approved parts.

Repair Difficulty

Professional Required 5/5

Required Part

Gas Manifold Assembly

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