Slush Machine Troubleshooting
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Slush Machine Troubleshooting
1. Machine Not Cooling / Slush Not Forming
Possible Causes & Solutions
1. Improper Liquid Concentration (Too High or Too Low)
Too thin: The mixture is too diluted, preventing it from freezing in a low-temperature environment, resulting in failure to form slush.
Too thick: The mixture is overly concentrated and may stick to the agitator shaft during mixing, causing shaft jamming and affecting cooling performance.
▶ Solution: Adjust the sugar level to 12–18 Brix to ensure proper concentration. Follow the manufacturer’s recommended mixing ratio to prepare the beverage with the correct consistency.
2. High Ambient Temperature (>35°C) or Poor Ventilation
▶ Solution: Move the machine to a well-ventilated area. Ensure good airflow around the unit, especially keeping at least 20 cm of clearance between the back of the machine and the wall for proper heat dissipation.
3. Condenser Blocked with Dust
▶ Solution: Clean the condenser fins carefully with a soft brush or compressed air to remove dust and debris, ensuring efficient heat dissipation.
4. Product Tank Not Properly Installed or Silicone Seal Ring Leaking Air
▶ Solution: Reinstall the tank properly and inspect the sealing ring for damage or aging. Replace the sealing ring if necessary.
5. Refrigeration System Malfunction (Low Refrigerant, Capillary Tube Blockage, Compressor Issues)
▶ Solution: Have a qualified technician inspect system pressure, check for leaks, and perform necessary repairs or refrigerant refilling based on the diagnosis.
2. Excessive Noise or Abnormal Vibration
Causes & Solutions
1. Agitator Shaft or Mixing Blades Worn Out
▶ Solution: Replace the worn mixing blades and shaft sleeves to ensure smooth agitation and reduce noise or vibration.
2. Fan Blades Damaged or Rubbing Against Foreign Objects
▶ Solution: Clean the air duct to remove debris. Inspect the fan blades for damage and repair or replace them if needed.
3. Machine Not Placed on a Level Surface
▶ Solution: Adjust the leveling feet at the bottom of the machine to ensure the unit is placed evenly, preventing vibration caused by imbalance.
3. Machine Leaking Liquid
Causes & Solutions
1. Outlet Valve Seal Ring Aged
▶ Solution: Replace the aged O-ring on the dispensing valve to restore proper sealing and prevent leakage.
2. Seal Ring at the Bottom of the Tank Worn Out
▶ Solution: Replace the worn seal ring and apply a small amount of food-grade silicone grease to the new ring to improve sealing performance.
4. Machine Shuts Down Intermittently or Enters Automatic Protection Mode
Causes & Solutions
1. Long-Term High Load on the Refrigeration System → Overheat Protection
▶ Solution: Improve ventilation around the machine to enhance heat dissipation. Check whether the fan is operating correctly.
2. Unstable Voltage Supply
▶ Solution: Use a voltage stabilizer to keep the power supply steady at 110V or 220V, preventing shutdowns caused by voltage fluctuation.
3. Overload Protector Tripped
▶ Solution: Allow the machine to cool down for 10–15 minutes before restarting. Avoid frequent power cycling to prevent repeated tripping of the overload protector.