Servend STH14, Technician'S Handbook

Page: 126 / 204

126 Part Number STH14 5/09
Syrup and
plain water
only
dispensing
No pressure Out of CO
2
Install fresh tank.
HP regulator
out of
adjustment
Adjust HP regulator to
the proper setting.
Defective HP
regulator
Check/repair/replace
HP regulator.
CO
2
line
pinched, kinked
or obstructed
Check/repair/replace
CO
2
line.
One valve
will not
dispense
anything
Is there power to
the valve?
Broken wire or
loose
connection
Replace/repair wire or
connector.
Bad
microswitch
Replace microswitch.
Beverage
dispensed is
too sweet
Is the ratio (brix)
of the drink
correct?
Flow control out
of adjustment
Adjust the flow control.
Insufficient
soda flow due
to low
carbonator
pressure
Adjust CO
2
pressure
or change the tank.
Low CO
2
pressure due to
leaks
Repair CO
2
leaks.
Obstruction in
the water or
soda line
Clean out the lines.
Beverage is
not sweet
enough
Is the ratio (brix)
of the drink
correct?
Flow control out
of adjustment
Adjust the flow control.
Soda flow too
high
Reset CO
2
pressure or
replace regulator if
necessary.
Obstruction in
syrup line
Clean out the syrup
line.
Drinks are
foaming
Are system
pressures
correct?
Over
carbonation
Check CO
2
supply.
Reset pressure or
replace regulator if
necessary.
Dirty lines/
valves
Clean/sanitize entire
system.
Condition Investigation Check Correction
STH14.book Page 126 Monday, May 4, 2009 1:48 PM