La Cornue Range

La Cornue Grand Castel 90 (Gas / Dual-Fuel)

Model # Grand Castel 90 (US hob codes 90 US C0, C1, C2, C3, C5)

The Grand Castel 90 carries a single large vaulted oven in a mid-size body, with a hob that keeps two gas burners as its fixed element on every gas code; the French top, power burner, lava-rock grill or an added induction pair (on code C5) fill the remaining position. As with the larger Château sizes, each hob element is fed and switched on its own.

There is no display on these hob codes, so a burner complaint is confirmed with a manometer and a look at flame color rather than a code, and the oven is checked against measured temperature.

Key Features

  • One large vaulted oven, gas or electric
  • 90 cm hob with two gas burners and, by code, a French top, a power burner, a lava-rock grill or a pair of induction zones alongside the gas burners
  • Same 17,000/7,500 BTU natural-gas burner pair used across the Château line

Most Common Issues on This Model

01

Vaulted oven not reaching or holding set temperature

02

Gas burner, French top or power burner not heating

03

Grill will not stay lit or lights with a yellow, uneven flame

Error Codes Common to This Model

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FAQ

La Cornue Grand Castel 90 (Gas / Dual-Fuel) FAQ

Not inherently — it is the same vault design and thermostat class, just in one larger cavity rather than two.

No, hob code C5 pairs two gas burners with two induction zones on the same top — check which fuel type is affected before diagnosing.

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