Melitta Brew Group Presence Detection Failure

Machine displays 'Insert brew unit' even though the brew group is installed.

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

Brew group not fully locked in place, Dirty or stuck brew group microswitch, Broken brew group locking tab, Misaligned brew group rails

Safety first: Unplug the machine before removing the brew group.

Steps:

Remove and inspect: Take out the brew unit and inspect for broken plastic tabs or rails. Clean off coffee residues.
Clean switch area: Locate the brew group presence switch inside the machine and gently clean around it.
Reinsert correctly: Slide the brew group back in along the rails until it clicks firmly. Do not force it; if it resists, check alignment.

If the message persists, the presence microswitch may be faulty and should be replaced.

Medium 3/5

Brew Group Presence Microswitch

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