OUT OF BEANS
Error/NO
GROUNDS
Is the
bean hopper
empty?
Fill the bean hopper with
espresso beans, and then run
1-3 double espresso drinks to
clear the error.
NOTE: For vending units with
CTS, the service switch must
be in the SERVICE position.
Is the
hopper stopper
installed?
Yes
No
Yes
Carefully remove
the hopper
stopper. Run 1-3
double espressos
to clear the error.
Clean all debris from the group sweep
plate, funnel, and chamber. Remove
the sweep funnel by lifting the metal
tab to the right of the funnel, to
facilitate cleaning. Dry funnel
completely before reinserting. Clear
the group chamber of debris. (To move
the lower piston, navigate to TEST
ROUTINES > LEFT DRIVE.)
Chamber
blocked by
debris?
Yes
Foreign
debris in hopper/
grinder?
No
Power unit down. Install
the hopper stopper and
remove the hopper from
unit. Inspect the beans
and top of grinder for
foreign debris, plastic,
rocks, metal, etc.
Dispose of beans,
and then use a
vacuum to clear all
beans/debris from
grinder input and
spout.
Yes
Power unit on. Navigate to
TEST ROUTINES > FRONT
or REAR GRINDER and
activate grinder and note the
spin direction, if any, of the
blades inside.
No
Grinder
spout flap
OK?
Carefully clear spout of
excess espresso grounds.
Inspect metal fingers of
grinder spout for damage
and sticking open problems.
No
Repair or replace
flap.
No
Yes
Replace the AC
drawer.
Disconnect the effected grinder
from the main harness. Attach a
Meter set on AC voltage to the
harness side connection. Navigate
to TEST ROUTINES > FRONT or
REAR GRINDER and activate the
affected grinder. Verify line voltage
to grinder at harness connection
Motor
voltage
present?
Yes
Fuse on
AC drawer
OK?
Possible shorted
grinder motor.
Replace grinder.
Replace fuse and
retest grinder. If
fuse blows again
replace grinder
and retest.
No
Does
the blade spin
clockwise?
No
Yes
Check the
connection to the
grinder cap under
the grinder platform.
Repair or replace as
needed.
Did
the blades
spin?
Yes
No
Is the
grind very
fine?
Yes
Using a slotted screwdriver or
tool, rotate the grinder adjust
knob several turns in the
coarser direction. Run grinder
again and inspect the grind
size. Adjust until the grind is
similar to sugar or salt size.
Run a double
espresso and measure
the extraction time.
Repeatedly adjust the
grind until an 18-23
second pour time is
obtained.
Extraction
time
obtained?
END PROCESS
Yes
No
Verify the water
pressure is 135-140psi
and brew valve
operation. If correct,
replace grinder blades
or grinder assembly.
No
Verify line
voltage to rear
grinder plate.
Yes
Voltage
present?
Replace the
AC drawer.
No
Inspect harness,
Connectors for
opens and shorts
and pinched wires.
look for pin
damage in
enclosure.
Yes
Short/open
found?
END PROCESS
Yes
No
Using a Phillips screwdriver,
rotate the grind adjust
several turns coarser.
Retest.
Did
the blades
spin?
No
Yes
Repair/replace
damaged
component.
No
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