Concordia XPRESS - Milk System: Short Milk Pour

3033-015B Section 15: Troubleshooting
Concordia Xpress Technical Support Manual 15-21
2900-300B
Milk System: Short Milk Pour
No Milk Pouring
Has
the machine
been
cleaned?
Yes
No
Did
solution
pull from
cups?
Yes
Yes
Is there
milk in the
refrigeration
unit?
Insert milk
container in the
refrigeration unit.
No
Yes
Is the
tubing inserted
correctly?
Verify the milk pick-up tube
sinks to bottom of the milk
container and that it is not
pinched or curled or in the
handle of the milk container.
No
Is the
problem in the
refrigeration
unit?
Yes
No
Run a test drink
with milk.
Milk pouring
correctly?
END PROCESSYes
No
No
Run a test drink
with milk.
Milk
pouring
correctly?
END PROCESSYes
No
Inspect air gate
elbow fittings for
air leaks.
Elbow
fittings are tight
and sealed?
Enter user menus
and verify the
refrigeration unit
configuration is
correct.
Re-seal and
tighten fitting with
Loctite.
No
Yes
Navigate to TEST
ROUTINES > MILK
PUMP/AIR GATE to
activate and verify
voltages are present.
Is the
input and output
pump tubing
blocked?
Repair or replace.
Is the input
TEE clear of
debris?
Repair or replace.
No
Yes
Yes
No
Run a milk
clean cycle.
24Vdc
present at
air vent
control?
12Vdc
present for latte
gate?
2.50Vdc
at milk pump
control?
Yes
Yes
Yes
Cover the top of
the air vent stem
with fingers and
activate pump.
Yes
Inspect pins of
cable and verify
cable attached to
mini backplane.
Cables
and pins
correct?
Replace
CPU.
No
Yes
Repair or replace
cables.
No
Verify voltage
present at adjust
pot for 2.50Vdc.
No
Does
milk
pour?
Replace milk
pump.
PN 2340-112
Replace the air
gate assembly.
PN 2712-009
No
Yes
24Vdc
at milk pump
power?
No
No