Vacuum makes loud whistling or hissing noise during use

Safety first: Remove the battery before inspecting seals.

• 1. Check bin seating: Remove and refit the dust bin, ensuring it clicks firmly into place.
• 2. Inspect gaskets: Examine the rubber seals around the bin, cyclone, and main body inlet. Replace any that are torn, flattened, or missing.
• 3. Check for cracks: Look for hairline cracks in the bin or cyclone housing. Replace the damaged component.
• 4. Tighten connections: Ensure the wand and nozzle are fully inserted and locked. A loose connection can cause whistling and reduced suction.