La Cornue Range Hood Grease Leak
La Cornue Range Hood Grease Leak is a fault our factory-trained technicians diagnose and repair with genuine parts. Below is what it means, the most likely causes, and the steps to try before booking service.
What Grease Leaking means on your La Cornue Range Hood
Grease dripping from a La Cornue hood is an indicator of saturated baffle filters and a full grease channel. The baffle filters are designed to capture grease and direct it to a channel; once overloaded, grease drips back toward the cooktop.
Symptoms to look for
The signs below help confirm you are dealing with this condition rather than a different fault. You may notice just one of them or several together, and they can appear gradually over time or suddenly after a spill, a power event, or recent service.
- Grease drips from the hood underside
- Filters visibly saturated
- Grease channel or tray full
- Worse after heavy frying
Common causes
Several different faults can produce these symptoms. Working through the most likely causes in order helps you separate a quick, inexpensive fix from a problem that needs trained service and the correct La Cornue parts.
- Saturated baffle filters — can no longer hold grease
- Full grease channel/tray — overflowing
- Infrequent cleaning — buildup over time
- Heavy high-grease cooking — overwhelms the filters
Troubleshooting steps you can try
Work through these checks in order, with the appliance cool and powered down before you touch any internal part. Stop at any point where you are unsure, or where gas, high heat, or live electrical parts are involved, and hand the remaining diagnosis to a qualified technician.
- Remove and degrease the baffle filters (often dishwasher-safe).
- Empty and clean the grease channel and any drip tray.
- Establish a regular filter-cleaning schedule based on cooking habits.
- Reinstall clean, dry filters.
When to call a technician
Grease leaking is routine owner maintenance. If filters and the channel are clean but grease still escapes, a technician can check the hood’s capture and drainage design. You can reach the La Cornue National Service Center on 1-877-522-6768, or find an authorized technician through the manufacturer at lacornueusa.com. La Cornue appliances are hand-built and use proprietary parts, so factory-trained service protects both your warranty and the appliance.
Parts a technician may replace
Depending on what the diagnosis shows, a technician may inspect, test, or replace the baffle filters, grease channel, and drip tray. The correct part for your configuration is identified from the model and serial number; on La Cornue appliances these are proprietary components fitted by trained service rather than generic substitutes, which protects both performance and the appliance’s long-term value.
Safety and prevention
To reduce the chance of this returning on your La Cornue Range Hood, keep up with routine care — clean spills before they bake on, follow the manufacturer’s maintenance schedule, and avoid abrasive pads or harsh chemicals on enamel, brass, and finished surfaces. Periodic professional servicing catches wear items early, and addressing small performance changes promptly usually means a simpler repair. When you book service, having the model and serial plate details and a note of exactly what you observed will help the visit go quickly. A clear description of when the problem started and what you were cooking at the time often points the technician straight to the cause. Because every La Cornue range is built to order, repairs are matched to your specific configuration, finish, and fuel type rather than a one-size-fits-all part.
Need help now? Book a certified technician on our schedule page, explore more La Cornue range hood error codes, or see full La Cornue range hood repair options.
