Describe the fan, lights and controls separately

Tell us whether the fan fails at every speed or only at a particular setting. Note whether the lights work, the controls respond and the sound changes as the fan runs. A hood with a working fan but weak extraction presents a different problem from a unit with no power.

Weak extraction can involve the appliance, filters or the ventilation route. The assessment helps distinguish these possibilities. Work on concealed building ducts or an installation problem may require a separate service.

Gather the installation details

• Brand and model number, if accessible without dismantling anything.
• Whether the hood is under a cabinet, mounted to a wall or installed over an island.
• The speeds, lights or buttons affected, and any displayed error.
• When the problem began and whether it is constant or intermittent.
• Access details such as ceiling height and surrounding cabinetry.

Prepare the kitchen

Leave the cooking surface below the hood clear and cool before the appointment. Follow the instructions for your exact model for routine filter care. Avoid opening electrical compartments or removing a mounted hood to investigate a fault; describe access restrictions when booking.