Certain Château range configurations, such as the Châtelet 120, pair a vaulted oven with a dedicated electric warming drawer beneath it. It is a genuinely separate appliance sharing the same cabinet — its own heating element, its own thermostat control, and its own two shelves — rather than an extension of the oven above it, and it fails independently of whatever is happening in the oven.
What It Is Actually Built to Do
The warming drawer is designed for warming plates so they match the temperature of the food being served, gently warming certain foods such as bread dough, foie gras, pasta, or meringues, and keeping already-cooked dishes warm before serving. Its range runs from about 30°C (85°F) at the low end to about 110°C (230°F) at the top, which is intentionally modest — this is a holding and warming appliance, not a second oven meant to cook food from raw.
Diagnosing a Drawer That Has Gone Cold
The thermostat doubles as both the switch and the temperature control, so the first and simplest check is confirming it is not sitting in the “0” position, which turns the heating elements off entirely regardless of where anything else is set. If the drawer still does not warm with the thermostat turned to a working position, the heating element itself is the more likely cause, since the drawer’s electrical circuit is separate from the oven’s and a failure in one does not affect the other.
Uneven Warming Between the Two Shelves
Because the drawer has two shelves — the lower one better suited to keeping dishes warm and the upper one to warming plates — a difference in temperature between them is expected by design, not a sign that anything has failed. A drawer that runs uniformly cold on both shelves, rather than simply warmer on one than the other, is the pattern that actually points at the heating element or thermostat.
Why This Is Electrical Work
Because the warming drawer’s heating element and thermostat sit inside a sealed electrical enclosure, diagnosing and replacing either one is technician work rather than something to open up on your own.
Not the Same as a Weak Vaulted Oven
Because the drawer sits in the same cabinet as the vaulted oven above it, a cold drawer is sometimes reported alongside an unrelated oven complaint as if the two must share a cause. They do not: separate wiring and separate controls mean a drawer failing has no bearing on how the oven above it is heating, and the two are always diagnosed independently.
What to Report When You Call
Whether both shelves are affected or only one, whether the drawer feels cool immediately or only after some time, and whether the thermostat knob turns freely all help narrow down whether the problem sits at the switch, the thermostat sensor, or the heating element itself.
If your range’s warming drawer has stopped heating, a La Cornue oven repair visit tests the thermostat and heating element directly rather than assuming which one has failed.