AEG Poor Puck Formation

Coffee grounds are very wet and sludgy in the grounds container.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Insufficient coffee dose, Incorrect grind size, Worn brew unit seals, Low pump pressure

How to Fix / Troubleshooting

Safety: Unplug before brew unit maintenance.

  • Adjust settings: Increase coffee strength and adjust grinder to a slightly finer setting.
  • Clean brew unit: Remove and clean the brew group, paying attention to the filter screen and piston.
  • Lubricate seals: Apply food-grade silicone grease to brew unit piston seals to ensure proper compression.
  • Check pump: If pucks remain very wet, test pump pressure and replace the pump if weak.
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Repair Difficulty

Medium 3/5

Required Part

Brew Unit Seals / ULKA Pump
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