Pump is very loud or vibrates excessively during brewing or rinsing.

Safety first: Unplug the machine before moving or tilting it.

Step-by-step checks:

• Prime the pump: Fill the water tank fully and run a hot water cycle to purge air.
• Check machine placement: Ensure the machine is on a stable, level surface. Place a soft mat under it to reduce transmitted vibration.
• Inspect tank seating: Make sure the water tank is fully inserted to prevent cavitation.

When to call a technician: If the pump remains abnormally loud or the machine vibrates excessively, the pump mounts or pump itself may need replacement.