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WARNING: If repairs are to be made to a product system, remove quick disconnects from
the applicable product tank, then relieve the system pressure before proceeding. If repairs
are to be made to the CO
2
system, stop dispensing, shut off the CO
2
supply, then relieve the
system pressure before proceeding. If repairs are to be made to the refrigeration system, make sure
electrical power is disconnected from the unit.
TROUBLESHOOTING
IMPORTANT: Only qualified personnel should service internal components or electrical wiring.
IMPORTANT: The following CO
2
and liquid disconnects disconnecting and connecting procedure for
soft drink tank replacement or filling soft drink tank in place must be performed in order as follows:
1. To disconnect soft drink tank from Unit syrup system.
A. Disconnect liquid disconnect from soft drink tank. NOTE – Disconnecting liquid quick
disconnect from soft drink tank first prevents syrup from backflowing through Unit syrup flow
regulator which may alter regulator adjustment.
B. Second, disconnect CO
2
quick disconnect from soft drink tank.
2. To connect soft drink tank into Unit syrup system.
A. First, connect CO
2
quick disconnect to soft drink tank to pressurize tank.
B. Second, connect liquid quick disconnect to soft drink tank.
TROUBLESHOOTING CONTROL PANEL SWITCHES AND FAULT MESSAGES
Trouble Probable Cause Remedy
ONE OR MORE CONTROL
PANEL SWITCHES NOT
OPERATING.
A. Flat cable not properly
connected to control switch
module or master circuit
board.
A. Properly connect flat cable to
control switch module or master
circuit board.
B. Flat cable connected between
control switch module and
master circuit board pinched
and shorted out or broken wire
in cable.
B. Check cable for pinched or
broken wire condition and repair
or replace as necessary.
C. Inoperable switch(s) on control
panel switch module.
C. Replace control panel switch
module.
D. Master circuit board not
operating properly.
D. Replace master circuit board.
ALL CONTROL PANEL
SWITCHES NOT OPERATING.
A. Electric power disconnected
from Unit.
A. Restore electric power to Unit.
B. ‘‘SECURITY SWITCH’’ has
not been pressed to activate
control panel switches.
B. Press and hold ‘‘SECURITY
SWITCH’’ for 3-seconds to
restore control panel switches to
operation.
C. ‘‘SECURITY SWITCH’’
inoperable (control switches
deactivated).
C. Replace control panel switch
module.
D. Flat cable not properly
connected to control switch
module or master circuit
board.
D. Properly connect flat cable to
control switch module or master
circuit board.