TROUBLESHOOTING GUIDE - ESPRESSO MACHINE
PROBLEM
Possible Cause
What To Do
Group Handle is
tight to turn in the
Group Head
The Group Head Silicone Seal
is new and needs bedding in.
Keep using. This Seal will bed in
during the first few uses and become
easier to turn.
Too many coffee grinds used.
Dose less coffee grinds.
Group Handle is
loose or comes off
during espresso
extraction
Group Handle is not attached
correctly or has not been
tightened sufficiently.
Ensure all three tabs of the Group
Handle are fully inserted into the Group
Head and rotated to the centre position.
See Coffee Making Guide, page 10.
No Filter Basket inserted in the
Group Handle.
Ensure a Filter Basket is inserted into
the Group Handle before using in the
Group Head.
Group Head Silicone Seal is
damaged or worn.
See Care & Cleaning, page 24.
Contact Oster Customer Care.
Espresso squirts
or trickles down
the side of the
Group Head during
extraction
Coffee grind is too fine.
Change to a coarser Grind Setting.
Too many coffee grinds used.
Dose less coffee grinds.
Coffee grinds tamped too hard.
Apply less force during tamping.
Top edge of Filter Basket has
not been cleaned of loose
coffee grinds.
Wipe around top edge of the Filter
Basket before inserting into Group Head.
See Coffee Making Guide, page 10.
Group Head inside rim, Silicon
Seal or Shower Head is dirty.
Clean the parts with the Cleaning
Brush and damp cloth.
See Care & Cleaning, page 23.
Group Head Silicone Seal is
damaged or worn.
See Care & Cleaning, page 24.
Contact Oster Customer Care.
No espresso pours No water in the Water
Reservoir.
Fill reservoir with water. Prime water
through the Group Head, press the
ONE CUP BUTTON. Allow water to
run through.
Coffee grind is too fine.
Change to a coarser Grind Setting.
Too many coffee grinds used.
Dose less coffee grinds.
Coffee grinds tamped too hard.
Apply less force during tamping.
Custom shot volume being
used.
Reset to the default shot volumes.
See Customisable - Shot Volumes
Temperature, pages 20-21.
The Filter Basket is blocked.
See Care & Cleaning, page 25.
Group Head is dirty.
See Descaling Cycle, page 29-30.
Group Head is blocked.
A Descaling Cycle is required.
See Descaling Cycle, pages 29-30.
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