La Cornue ranges are not built to a single fuel formula — the Château series can be ordered with gas or electric vaulted ovens, dual-fuel configurations pairing one of each on larger models, and induction cooktop options on select configurations, while CornuFé offers a choice between a gas rangetop and a five-zone induction surface on both its sizes. That range of configurations means “my La Cornue isn’t working” can mean genuinely different things to diagnose depending on which one you own.
All-Gas Service
A fully gas range concentrates almost every problem around ignition, flame, and gas delivery — igniters, spark modules, orifices, valves, and thermocouples on the oven side. Nearly everything discussed for La Cornue burners and ovens elsewhere applies most directly here, and gas connection or conversion work on this configuration is always technician-only. If you ever smell gas on any configuration, stop, leave the controls alone, ventilate, and call from outside before anything else.
Dual-Fuel Service
A dual-fuel range adds an electric oven’s heating elements and control board to the gas side’s burners and valves, which means a single range can have a genuinely gas problem in one oven and a genuinely electrical one in the other at the same time. Diagnosing a dual-fuel range means being clear about which oven and which system is actually misbehaving before assuming the whole range shares one cause.
Induction Service
Induction cooktops replace open flame with electromagnetic zones that heat the pan directly, which removes gas-side problems from that part of the range entirely but introduces its own — a zone that will not detect cookware, a control board issue, or a zone that heats unevenly. None of the burner-cleaning or orifice knowledge that applies to gas cooking is relevant to an induction zone, and none of the electronics involved are safe to open outside a technician’s hands, since induction control boards sit inside sealed enclosures.
Why Knowing Your Configuration Matters Before Calling
Describing a range as simply “La Cornue” leaves out the detail that changes everything about how a visit is approached — whether the specific oven or cooktop in question is gas, electric, or induction. Checking your range’s configuration, or the paperwork from when it was ordered, before booking a visit means the right diagnostic approach and parts knowledge are ready from the start.
One Thing True Across All Three
Regardless of fuel type, any sealed electrical enclosure — a control board, an induction module, a spark module — is technician-only territory, and any gas connection or conversion work is as well, whatever else is being diagnosed at the same time.
Whichever fuel configuration your range uses, a La Cornue range repair visit starts by confirming exactly which systems are involved before diagnosing further.