Grand Castel 90 (US hob codes 90 US C0, C1, C2, C3, C5)
La Cornue Grand Castel 90 Gas Range Repair
Most common issues on this model
- Oven temperature against its thermostat setting
- Light-up and flame at each burner, the French top and the power burner
- Lava-rock grill burning evenly and staying lit
- Gas pressure at the range
The Grand Castel 90 puts one big vaulted oven, gas or electric, under a 90 cm hob. Two gas burners come standard, and the hob code can add a French top, a power burner, a grill on lava rock or two induction zones. The standard burners are rated 17,000 and 7,500 BTU on natural gas, as on the larger Château ranges.
This one runs from knobs with no display, so there is no error code to chase. We light every burner and judge the flame, read gas pressure, and study the ignition and flame-safety device wherever a burner lights and then goes out. A lava-rock grill that burns yellow or ragged gets a closer look at its burner and air supply.
The oven goes under a thermometer against its dial, to see whether it reaches temperature and holds it. We read the label for model and serial before ordering parts, and you get a written price before work begins.
Key features
- Single large vaulted oven, specified for gas or electric heat
- Gas hob of 90 cm (about 35 in) with two burners as standard
- Options by code include a French top, power burner, grill on lava rock, or two induction zones beside the gas
- Standard burners rated 17,000 and 7,500 BTU on natural gas
Error codes this model can show
My lava-rock grill burns yellow. Is that a gas supply problem?
More often it is the air mixture or blocked ports at the burner. We inspect the burner first, then confirm gas pressure at the range.
The oven will not hold temperature. What do we test?
We measure the cavity against the dial, then check the heat source, the ignition and flame-safety device on gas or the element on electric, and the thermostat.
Does the Grand Castel 90 display error codes?
No. It is mechanical, so we diagnose by testing flame, gas pressure, ignition and oven temperature. Only an induction hob shows symbols at the zones.
Book repair for your Grand Castel 90 (US hob codes 90 US C0, C1, C2, C3, C5)
Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.