If your cooker hood is louder than usual or making unfamiliar sounds, it could be a sign that something needs attention. Here are the most common causes and what you can do to fix them:

High Fan Speed Usage

Using your cooker hood at its maximum setting will naturally increase noise levels. This is normal, especially during intense cooking sessions. For everyday use, we recommend selecting a lower speed setting. Reserve the highest fan speeds for when you’re dealing with heavy smoke or strong odours.

Dirty Filters

Grease and carbon filters can become clogged over time, making the fan work harder and sound louder. To keep things running smoothly, clean your grease filters every 2–4 weeks. If your model uses carbon filters, replace them according to the recommended schedule.

Installation Issues

Unusual vibrations or rattling sounds may come from loose fittings or misaligned ducting. Make sure your hood is securely installed. If you suspect alignment or fitting problems, it’s best to consult a professional installer.

Duct Obstructions

Blocked or poorly designed ducting can restrict airflow and create turbulence, which leads to excess noise. Inspect your ductwork for obstructions and try to use smooth, short ducts with minimal bends to help reduce sound levels.

Worn Components

Over time, certain parts may wear out and begin to produce irregular noises. If your cooker hood has been in use for several years, it may be time to have it inspected. Our NEFF Customer Support team can help assess the issue and advise on replacing any worn components.

Additional Tips

  • Regular cleaning. Keep filters and ducts clean to maintain smooth airflow.
  • Check installation. Ensure the cooker hood is properly installed and secured.
  • Use genuine NEFF accessories. Specially designed parts help maintain quieter, more efficient performance over time.

If noise persists despite following the guidance above, contact NEFF Customer Service for further support or book a repair online.