Manitowoc Ice MULTIPLEX 11M - Manual (Page 39)

Section 5 Before Calling for Service
Part Number 020001552 5/11 5-1
Section 5
Before Calling for Service
Checklist
If a problem arises during operation of your post mix
soda refrigeration unit, follow the checklist below before
calling service. Routine adjustments and maintenance
procedures are not covered by the warranty.
! Warning
Only trained and certified electrical and plumbing
technicians must service this unit. All wiring and
plumbing must conform to national and local codes.
Problem Possible Cause To Correct
Water only dispensing:
No pressure
Regulator(s) out of adjustment Check/adjust regulator(s).
Out of CO
2
Install fresh tank.
Defective regulator(s) Check/repair/replace regulator(s).
CO
2
line pinched, kinked, or obstructed Check/repair/replace CO
2
line.
Syrup and CO
2
only dispensing:
Carbonator
No power Check poser supply. Plug in carbonator
or reset breaker.
Water supply Make sure water is turned ON.
Replace water filter.
Check/clean/replace pump strainer.
Check/clean/repair water check valve.
Check for frozen water line.
Internal Carbonator unit only.
Defective carbonator Check/repair/replace carbonator pump,
motor, electrode or liquid level control.
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 is necessary.
Dirty lines/valves Clean sanitize entire system.