Grindmaster Frozen Drink Machine Troubleshooting
The Grindmaster frozen drink machine makes serving tasty beverages and cocktails a breeze for your business. Simply dispense and serve. But when you start noticing certain issues and signs of a problem arise with the unit, it’s time to get it checked out. If you’re experiencing any abnormalities, sounds or operational issues with your Grindmaster frozen beverage machine, take a look at this easy-to-follow troubleshooting guide so you know exactly what to tell a certified service technician when you make that call.
This troubleshooting guide focuses on the Grindmaster 3311 frozen drink machine.
Machine Won’t Run or Freeze Down
Causes | Solutions |
Machine isn’t plugged in | Check that machine is plugged in |
Circuit breaker has tripped or a fuse has blown | Reset the breaker or replace fuse |
Machine is in the CLEAN or OFF position | Turn on the machine |
Air flow to condenser is obstructed (air-cooled units only) | Have condenser cleaned. Ensure the machine has 6-inch clearance on both sides |
Compressor isn’t operating | Have the machine inspected and repaired by an authorized technician |
Dasher isn’t installed | Have dasher (ayger) installed by an authorized technician |
Low refrigerant charge | Have authorized technician check unit for leaks, repair and recharge refrigerant |
Product is Too Soft
Causes | Solutions |
Consistency setting is too loose | Consistency control needs to be readjusted |
Consistency setting is at the maximum (red spring) | Have consistency spring changed to a proper one |
BRIX product level is too high | Lower the liquid BRIX level |
Too much alcohol in the mix | Lower the alcohol content |
Product Won’t Dispense
Causes | Solutions |
Power switch is in OFF position | Turn the switch to ON position |
Inadequate mix in hopper. Red MIX LOW light is on | Refill the hopper |
Consistency adjuster is set too firm | Readjust consistency setting |
Carburetor inlet hole is clogged | Have the carburetor serviced |
Drive belt is broken or off the pulley | Have drive belt repaired or replaced by an authorized technician |
Drive shaft is worn | Have drive shaft replaced by an authorized technician |
Drive motor failure | Have motor replaced by an authorized technician |
Leaking from Drain Tube, Above the Drip Tray or Dispensing Valve
Leak Source | Causes | Solutions |
Drain tube and/or front of the freezer above the drip tray | Worn or defective shaft seal | Have seal replaced and regularly lubricated |
Drain tube and/or front of the freezer above the drip tray | Seal was installed incorrectly | Have seal reinstalled |
Dispensing valve | Defective or worn o-ring(s) | Have o-ring(s) replaced and well-lubricated |
Making Sounds
Sound | Causes | Solutions |
Clicking inside the machine | Low voltage | Call an authorized technician |
Clicking inside the machine | An extension cord is being used | Connect the machine directly to a power source or use a proper power cord |
Thumping inside the machine | Worn belt | Have the belt replaced by an authorized technician |
Scraping during freeze down | Frozen product is scraping off of cylinder walls | Sound should go away once product is frozen to the proper consistency |
Scraping during freeze down | No product in machine | Fill machine with product |
Premature Seal Wear
| Causes | Solutions |
Improper installation of dasher | Have dasher inspected and reinstalled by an authorized technician, if necessary |
Improper drive shaft clearance | Have drive shaft adjusted by an authorized technician |
Improper shaft alignment | Have shaft realigned by an authorized technician |
Merchandiser Light Flickers When Freezer Cycles
| Causes | Solutions |
Not fully plugged in | Make sure the power cord is plugged in all the way into the outlet |
Low voltage | Call an authorized service technician to connect the freezer needs to a dedicated circuit |
For more troubleshooting help, simple cleaning instructions and more for your unit, take a look at our library of Grindmaster manuals.