American Metal Ware Liquid Coffee Dispenser
Page 10
Troubleshooting Guide
The following procedures must be performed by a qualified service technician.
Machine does not power up
•
Machine is unplugged
•
Circuit breaker behind door has tripped
•
Ensure machine is plugged into power supply
•
Reset breaker
Hot Chocolate will not pump
•
Vacuum leaking in tube or BIB fitting
•
Ensure product viscosity is not too high
•
Ensure product tubing is not too long
•
BIB empty. Change box
•
Ensure there is no leak in the pump tubing
•
Ensure the pump fuse is not blown
•
Ensure that the concentrate switch is turned on
No hot water from dispense head
•
Door is open (An interlock switch disables
the dispense and fill circuits when the door
is open)
•
Faulty thermistor
•
Faulty water tank heater
•
Fill circuit watchdog timer has tripped
•
Water switch is in “OFF” position
•
Water supply to machine is turned off
•
Check for flashing diagnostic lights on
control board
•
Ensure door is latched closed. Reset power to
machine to ensure fill circuit watchdog timer is
reset
•
Consult factory for assistance
•
Check for open heater and replace if necessary
•
Ensure water supply to machine is on and reset
power to machine. Green Ready light off indicates
heater is activated and tank is heating
•
Ensure switch is in “ON” position
•
Ensure water supply is on then reset power to the
machine to reset the fill circuit watchdog timer
•
See Control Diagnostic Diagram for explanation
of lights
No concentrate is dispensed
•
Concentrate switch is in “OFF” position
•
Bag-in-box is empty
•
Bag-in-box connector is pointing up (This
position can create a partial vacuum in the
concentrate tube which may prevent prod-
uct from being pumped to the dispense
spout)
•
Concentrate pickup tube is kinked
•
Concentrate pump tubing is clogged
•
Ensure switch is in “ON” position
•
Ensure bag-in-box is not empty; replace with new
bag-in-box if empty
•
Position bag-in-box with connector pointing down
to provide a positive pressure in the concentrate
tube
•
Inspect tubing routing and ensure concentrate
tubing is not kinked
•
Periodically clean and sanitize tubing per the
Cleaning and Sanitizing procedure section in
this instruction manual
Machine does not dispense or fill
•
Transformer is blown
•
Blown fuse on controller
•
(Refer to Control Diagnostic diagram) Check if
green LED on control board is illuminated when
machine is powered on. Green LED indicates that
control is receiving proper supply voltage from
transformer. Replace transformer if LED does not
illuminate.
•
Check fuse and replace if necessary
Water tank slowly overflows through tank
vent at bottom of machine
•
Weeping fill valve seat
•
Replace fill valve
Problem/Cause
Remedy
Summary of Contents for American Metal Ware LCD2-1
Page 12: ...Exploded Views LCD2 1 and LCD2 3 American Metal Ware Liquid Coffee Dispenser Page 12 ...
Page 13: ...American Metal Ware Liquid Coffee Dispenser Page 13 Exploded Views LCD2 1 and LCD2 3 ...
Page 14: ...American Metal Ware Liquid Coffee Dispenser Page 14 Exploded Views LCD2 1 and LCD2 3 ...
Page 15: ...American Metal Ware Liquid Coffee Dispenser Page 15 Exploded Views LCD2 1 and LCD2 3 ...
Page 18: ...American Metal Ware Liquid Coffee Dispenser Page 18 Wiring Diagram 120 240V ...
Page 19: ...American Metal Ware Liquid Coffee Dispenser Page 19 Wiring Diagram 120 240V ...
Page 20: ...American Metal Ware Liquid Coffee Dispenser Page 20 Wiring Diagram Rev Release ...
Page 21: ...American Metal Ware Liquid Coffee Dispenser Page 21 Wiring Diagram ...
