Every Symbol on a La Cornue Oven Dial, and What It Actually Does

La Cornue oven symbols meaning: why this page exists

Of every question people type about this make, the largest single group is about the dial. Not about problems — about what the marks mean. Oven symbols, symbols meaning, knob symbols, icons, settings explained, broil symbol, modes, dials. It is the biggest cluster in the whole harvest and the manufacturer's own answer is a PDF most owners never find.

There is a reason it happens on this make more than on others. A La Cornue is bought for how it looks and cooks, the controls are drawn rather than labeled, and a great many of these ranges change hands with the house. Somebody moves in, finds a French range in the kitchen, and has no document and no dealer.

First, work out which oven you are looking at

This is the step that saves the rest of the page, because there are three different ovens wearing one badge and only one of them has a symbol set at all.

A vaulted gas oven — the Château's own oven — has no mode dial. It is a single gas burner under a sealed dome with an electric broiler above it, and it has a thermostat and a broil control. That is the whole interface. If your dials are unlabelled apart from numbers, nothing is missing.

A vaulted electric oven sits on the other side of a dual-fuel Château. Elements top and bottom, a thermostat, sometimes a broil position.

A multifunction electric oven — the CornuFé ovens and the Château Tourelle wall oven — is where the icons live. The CornuFé 90's oven carries seven cooking modes, two convection fans and eight heating elements, and the mode dial is how you choose between them.

So on a dual-fuel Château you have a plain dial on one side and an icon dial on the other, doing quite different things.

The symbols, and what each one switches on

Every one of these is a statement about *which heat sources run*, and once you read them that way they stop being decorative.

A fan on its own. Air moves, nothing heats. This is defrosting, and it is the symbol most often chosen by mistake by somebody looking for convection. If your oven is running and staying cold with a fan noise, look here first.

A fan inside a circle. The ring element around the fan plus the fan itself: even heat, all shelves usable, faster than conventional. This is the everyday setting on a multifunction oven and it is what most people mean by convection.

Two bars, one at the top and one at the bottom. Conventional baking — both elements, no fan. Slower, more graded, better for a single tray and for anything that wants a bottom crust.

A bar at the top only. Broil. Radiant heat from above, door usually shut on these ovens rather than ajar.

A bar at the top with a fan. Fan-assisted browning: the broil element with air moving, which browns a larger area more evenly than the broiler alone.

A bar at the bottom only. Base heat. Pastry, pizza, anything where the underside needs to set before the top colors.

A lamp. The oven light on its own, without heat.

The temperature dial is a separate decision

On a multifunction oven, the mode dial and the temperature dial are two independent controls and both have to be set. Turning the temperature up while the mode dial sits at off produces an oven that sits there doing nothing at all.

That is not a problem and it is not obvious. La Cornue's own troubleshooting section lists it explicitly under *oven not coming on*, alongside "is the power on" and "is the range supply on at the circuit breaker" — which tells you how often it happens.

The marks that are not oven functions

Two groups of symbols get filed under "oven symbols" in a search box and are neither symbols nor oven.

The hob display letters. On an induction cooktop or rangetop the display shows H for residual heat above 140 °F, a pan symbol when a zone has no pan on it or a pan below its minimum base diameter, A for automatic heat-up, L for child lock, L1 and L2 for the low and simmer settings, and P for power boost. None of those is a cooking mode and none of them means anything has failed. If a zone is completely unresponsive, check for L before anything else.

The three actual error codes. E2, U400 and Er followed by a number. That is the entire published set for this make, all three belong to the induction electronics, and they have their own pages on this site.

The gas side has no symbols because it has nothing to select

Worth stating plainly, because the absence reads as a missing feature.

A Château vaulted gas oven has one burner, one electric broiler and one thermostat. There is no fan to switch on, no ring element, no base-heat mode and no multifunction control — the oven cooks by radiant heat from the mass of the cavity, which is the entire point of a voûte. The graded heat that a fan oven works hard to eliminate is the thing you bought.

So there is no icon set to learn, and there is no code to read either: the Château installation and user guide contains no troubleshooting section at all. Diagnosis on that oven is measurement, not reading.

Two mistakes worth naming

Choosing the bare fan for convection. Air with no heat. The oven runs, sounds busy, and cooks nothing.

Assuming the broil symbol implies a fan. On a vaulted gas oven the broiler is a separate electric element over a gas burner. It means the oven can lose browning and keep baking perfectly, or the reverse — two circuits, and which one still works tells a technician which part to bring.

If the dial and the oven disagree

There is one situation where the symbols are fine and the oven is not, and it is common enough to mention here: an oven that has drifted hot over the years. La Cornue's own guide says that if turning the temperature down has not worked, or has only worked for a short time, you may need a new thermostat.

That is a measurement rather than a judgement. Put a thermometer on the middle shelf, set 350 °F, and read it every ten minutes for forty. An oven that spikes and settles at 350 is behaving normally. One that settles at 390 has drifted, and no amount of reading the dial correctly will fix it.