Vacuum makes a rattling noise inside the dust cup area when running.

Safety first: Remove the battery before opening the dust cup.

Steps to try:

• Empty dust cup: Remove and empty the dust cup completely. Shake gently to dislodge any stuck debris.
• Inspect cyclone: Look for loose parts or broken plastic inside the cyclone assembly. Remove any foreign objects.
• Check cyclone fit: Ensure the cyclone insert is locked firmly into place and does not move when shaken.
• Replace damaged parts: If you find broken plastic pieces or a cracked cyclone, replace the cyclone or dust cup assembly.