Coffee maker vibrates excessively or rattles on the countertop during brewing.

Safety first: Unplug the coffee maker before turning it over or opening the base.

• Level the unit: Place the coffee maker on a flat, stable surface. Replace any missing or worn rubber feet.
• Tighten screws: Remove the bottom cover and tighten all mounting screws for the heater, pump (if present), and internal brackets.
• Secure wiring: Ensure wiring harnesses are clipped or tied away from moving or hot parts to prevent rattling.
• Test operation: After reassembly, run a water-only brew cycle and observe vibration. If the base is warped, replacement of the housing may be necessary.