Coffee maker makes loud gurgling or rattling noises during brewing.

Safety: Unplug before inspecting internal tubing.

• 1. Check water level:
  • Ensure the reservoir is filled above the minimum line.
  • Reseat the reservoir firmly to prevent air leaks at the connection.
• 2. Bleed air from system:
  • Run a water-only brew cycle and pause halfway, then restart to help purge air.
• 3. Inspect tubing:
  • Remove the top cover and examine the silicone suction line from the reservoir to the pump.
  • Look for cracks, loose clamps, or hardened tubing that could allow air in. Replace any suspect tubing.
• 4. Check pump mounts:
  • Ensure the pump is securely mounted with its rubber isolators intact to reduce rattling.
  • If the pump is excessively noisy or vibrates strongly, replace the pump.