Service manual
Note: Ice bank freezes from bottom of evaporator upward.  A refrigerant leak or insufficient charge 
might show ice at bottom and not at top of evaporator. 
Compressor will 
not stop after 
sufficient ice 
bank is 
produced 
1. 
2. 
Ice bank control capillary tube 
kinked or broken.
Ice bank control stuck in closed 
position.
1. 
2. 
Replace ice bank control. 
Replace ice bank control.
Note: During overload protector shut off condenser fan motor will continue to work. Otherwise, 
troubleshooting condenser fan motor problems is the same, as “Compressor does not 
operate”, 
paragraph in addition to the following. 
Condenser fan 
motor not 
operating
1. 
2. 
3. 
Electrical cord loose or 
disconnected from condenser fan 
motor or compressor terminals. 
Fan blade obstructed.
Inoperative condenser fan motor. 
1. 
2. 
3. 
Tighten connections or replace 
cord.
Remove obstruction.
Replace condenser fan motor. 
No water being 
dispensed
1. 
2. 
3. 
4. 
5. 
6. 
7. 
Plain water inlet supply shutoff 
closed.
Water filter fouled/clogged.
Pinched or crimped line.
Loose electrical connection, 24 
volt.
Water pump motor worn out or 
damaged.
Water pump worn out or 
damaged.
Frozen water bath. 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
Open plain water inlet supply line 
shut off valve.
Replace filter or cartridge.
Repair defective line.
Tighten connection
and or repair 
open circuit.
Replace motor.
Replace water pump.
See “Frozen water bath”. 
Volumes of 
CO2 to low in 
finished product 
1. 
2. 
3. 
4. 
High-pressure regulator out of 
adjustment.
CO2 cylinder empty.
Water, oil, or dirt in C02 supply. 
Temperature above quality limits. 
1. 
2. 
3. 
4. 
 Adjust high-pressure regulator as 
instructed.
Replace CO2 cylinder.
Clean contaminated CO2 system, 
(lines, regulator, etc.) and sanitize 
as instructed.
See refrigeration/machine 
specifications vs. volume 
requirements. 
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