The Expert Guide to Repairing True and Avantco Commercial Refrigerators

commercial refrigerator services are the backbone of the food service industry, ensuring that perishable goods are stored at the correct temperatures to maintain safety and quality. Among the most reliable brands in the market are True and Avantco. 

However, even the best equipment can encounter issues over time. This comprehensive guide will walk you through the process of diagnosing and repairing common problems in True and Avantco commercial refrigerator services, ensuring your unit is back up and running with minimal downtime.

Understanding Your True and Avantco Commercial Refrigerators

True and Avantco refrigerators are known for their durability and efficiency. True refrigeration units are often favored for their robust construction and advanced cooling technology, while Avantco units are celebrated for their affordability and reliable performance. 

Despite their differences, both brands share common components and potential issues that can be addressed with a solid understanding of their operation.

Key Components of Commercial Refrigerators

  1. Compressor: The heart of the refrigeration system, responsible for circulating refrigerant.
  2. Evaporator Coils: Absorb heat from the refrigerator’s interior.
  3. Condenser Coils: Release absorbed heat outside the refrigerator.
  4. Thermostat: Regulates the temperature within the unit.
  5. Fans: Ensure proper air circulation throughout the system.
  6. Refrigerant: The substance that absorbs and releases heat to cool the refrigerator.

Common Problems and How to Fix Them

1. Refrigerator Not Cooling Properly

Symptoms: The unit is running but not maintaining the set temperature.

Possible Causes:

  • Dirty Condenser Coils: Dust and debris can accumulate on the coils, reducing efficiency.
  • Faulty Thermostat: The thermostat may not be accurately reading or regulating the temperature.
  • Low Refrigerant Levels: Leaks can lead to insufficient refrigerant, impairing cooling.


  • Clean Condenser Coils: Unplug the unit and use a coil brush or vacuum to remove dust and debris.
  • Check and Replace Thermostat: Use a multimeter to test the thermostat for continuity. Replace if faulty.
  • Inspect for Refrigerant Leaks: Look for oil spots around the unit. If a leak is found, contact a professional technician to repair it and recharge the refrigerant.

2. Refrigerator Running Continuously

Symptoms: The refrigerator motor runs constantly without cycling off.

Possible Causes:

  • Door Seal Issues: A damaged or worn door gasket can cause cold air to escape.
  • Dirty Condenser Coils: As with cooling issues, dirty coils can cause the unit to run continuously.
  • Improper Temperature Settings: The thermostat might be set too low, causing the unit to work harder.


  • Replace Door Gasket: Inspect the gasket for cracks or tears. Replace if necessary.
  • Clean Condenser Coils: Follow the same steps as above to clean the coils.
  • Adjust Thermostat Settings: Ensure the thermostat is set to the recommended temperature (usually between 35-38°F for refrigerators).

3. Unusual Noises

Symptoms: The unit is making loud or unusual noises.

Possible Causes:

  • Fan Motor Issues: Worn or damaged fan motors can cause noise.
  • Compressor Problems: A failing compressor might produce loud sounds.
  • Loose Components: Parts that have come loose can vibrate and create noise.


  • Inspect and Replace Fan Motors: Check the evaporator and condenser fan motors. Replace if they are worn or damaged.
  • Examine Compressor: If the noise is coming from the compressor, it may need to be replaced by a professional.
  • Tighten Loose Parts: Identify and tighten any loose components within the unit.

4. Water Leakage

Symptoms: Water pooling inside or around the refrigerator.

Possible Causes:

  • Clogged Drain Line: The drain line can become clogged with debris or ice.
  • Ice Buildup: Excessive ice on the evaporator coils can lead to water leakage.
  • Door Seal Issues: Poor sealing can cause condensation and water pooling.


  • Clear the Drain Line: Locate the drain line and use warm water or a thin wire to clear any clogs.
  • Defrost Evaporator Coils: Manually defrost the coils if there is significant ice buildup.
  • Check Door Seals: Ensure the door gasket is sealing properly and replace if necessary.

Maintenance Tips for True and Avantco Refrigerators

Regular Cleaning

Regularly clean the interior and exterior surfaces, including shelves and gaskets, with mild soap and water. Avoid abrasive cleaners that could damage the finish.

Routine Inspection

Periodically inspect the condenser and evaporator coils, fans, and door gaskets for signs of wear or damage. Address any issues promptly to prevent further damage.

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Temperature Monitoring

Regularly monitor the temperature settings to ensure they remain within the recommended range. Use an external thermometer for accuracy.

Professional Servicing

Schedule annual professional maintenance to check refrigerant levels, inspect electrical components, and perform any necessary repairs or adjustments.


Maintaining and repairing True and Avantco commercial refrigerators can seem daunting, but with the right knowledge and tools, it is manageable. Regular maintenance and prompt attention to issues will extend the life of your refrigeration unit and ensure it operates efficiently. By following this expert guide, you can confidently address common problems and keep your commercial refrigeration running smoothly.

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