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5. Fault Diagnosis
Kind of malfunction Reason Solution
Cooler switched off or not
connected to mains
electricity
Switch cooler on or insert
plug
Control damaged Change Control
Compressor defective
Change compressor (only
skilled persons)
Refrigerant leakage
Find and repair leakage and
refill circuit (only skilled
persons)
Waterbath empty
Refill the waterbath with
clean water until water level
reaches overflow
Dispense rate too high
Either reduce dispense rate
or install stronger machine
Beverages too warm
Condenser dirty or blocked
Clean condensor or take care
for a free air flow
Dispense rate too high Reduce dispense rate
Syrup too old or saturated Change syrup
Beverage is foaming
Beverages too warm
Look at section „Beverages
too warm”
CO
2
-cylinder empty Change CO
2
-cylinder
Pressure regulator is shut off
Open valve
Pressure regulator frozen
due to dispense rate too high
Either split CO
2
-feed to
several cylinders or install a
pressure regulator heating
Beverage plain (
enough with CO2)
Mains water pressure higher
than CO
2
-pressure Modify pressure adjustments
Carbonator pump defect Exchange pump
Water valve shut off or
carbonator not connected to
mains water
Open valve or connect unit to
mains water
Level control defect Exchange level control
Valve dispenses only gas
Time-out of level control has
cut he carbonator pump off
Ensure that there are no
leakages and reset the Level
control by disconnecting the
mains plug and plug it back
Icebank or temperature
control defect change controls
Beverages are frozen
Agitator defect Change agitator
Beverage is too sweet Wrong brix adjustment at
dispense valve Modify brix adjustment