4
2 OPERATING FAULTS
DEFECT
CAUSE
REMEDY
SECTION
Tamper disk does
not move, unit is ON
and display is
working
Fault in drive unit
Replace drive unit
3.1
Fault in induction
sensor
Replace induction
sensor.
3.2
Tamped surface is
not even
Tamper base is dirty
Clean tamper base
3.3
Cavity upper clamp
is dirty
Remove tamper base
and clean cavity
3.4
Tamping is not level
Lower clamp not
correctly set and
portafilter can rotate
Adjust lower clamp
3.5
Tamping force is too
low
Force setting too low
Adjust tamping force on
display
3.6
Fault in drive unit
Clean drive unit
3.1
Fault in drive unit
Replace drive unit
3.1
Tamper diameter
not correct
Change to other
tamper base
diameter
Change tamper base
4.1
Change from 58mm
base to 53mm or
53mm to 58mm
Change tamper base
AND upper clamp type
4.2
Components are
missing
Various
Find missing
component in exploded
view or part list and
order spare parts
5 / 6.3