Coffee maker makes loud rattling or buzzing noises during brewing.

Safety first: Unplug the unit before moving or inspecting it.

• Reposition the unit: Place the coffee maker on a solid, level surface. Avoid hollow countertops or trays that can amplify vibration.
• Check for loose parts: Gently shake the unit (unplugged) and listen for loose screws or components. Tighten any accessible external screws.
• Bleed air from pump: Fill the reservoir completely and run a brew cycle with water only. Noise often decreases once air is purged.
• If noise persists and is internal: The pump mounts or internal brackets may be loose or degraded and should be inspected and replaced if necessary.