Mahlkonig E65S - Grinder Humming But Not Grinding

Problem Cause Remedy
The grinder is
humming but
not grinding.
• The grinding
mechanism is
blocked.
• Ground coff ee
has built up
in the grinder
due to over-
fi lling of the
portafi lter.
• The grinding
degree is too
fi ne.
• A foreign
object is
in the grinding
mechanism.
 Release the lock on the grinding degree
adjuster and set the grinding degree to
“8”.
Start the grinding process.
The grinder will clear itself.
Then adjust the grinding degree se ng
to the grinding degree required during
operation.
 Clean the outlet system
(see Mahlkonig E65S Service & Repair
YouTube playlist: "Maintenance
cleaning").
Release the lock on the grinding degree
adjuster and set the grinding degree to
“8”.
Start the grinding process.
The grinder will clear itself.
Then adjust the grinding degree se ng
to the grinding degree required during
operation.
 Release the lock on the grinding degree
adjuster and set the grinding degree to
“8”.
Start the grinding process.
The grinder will clear itself.
Then adjust the grinding degree se ng
to the grinding degree required during
operation.
 Clean the grinding mechanism (see
Mahlkonig E65S Service & Repair
YouTube playlist: "Maintenance
cleaning") and remove the foreign
object. If the foreign object cannot be
removed, contact a service technician
for assistance.