De'Longhi Grinder Mechanical Noise / Possible Jam

Grinder is very loud or makes grinding/knocking noises

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.

Possible Causes

Foreign object in grinder, Worn grinder bearings, Misaligned burrs, Loose grinder mounting screws

Safety first: Turn OFF and unplug the machine before inspecting the grinder area.

Empty hopper: Remove beans and vacuum out loose fragments.
Check for foreign objects: Look for stones or metal pieces in the hopper and visible grinder inlet.
Test with few beans: Add a small amount of beans and run a coffee cycle. If noise persists, stop using the grinder to avoid further damage.
Service required: Internal grinder disassembly and burr alignment should be done by a professional.

Hard 4/5

Coffee Grinder Assembly

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