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  • 6 Causes of a Sub-Zero Fridge Freezing Food in the Fresh Food Section

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6 Causes of a Sub-Zero Fridge Freezing Food in the Fresh Food Section

Sub-Zero fridge freezing food

There’s nothing more perplexing than opening your esteemed Sub-Zero refrigerator to find lettuce turned to ice or milk transformed into a frozen block. If you’ve been exclaiming, “Why is my Sub-Zero fridge freezing food?”, you’re certainly not alone. Let’s unravel the chilly mystery with a comprehensive dive into possible causes and their remedies.

Unearthing the Mysteries Behind a Sub-Zero Fridge Freezing Food

Each refrigerator hiccup has its root. By understanding these, we can not only remedy the present problem but prevent future icy situations.

Internal Temperature Not Set Correctly

One of the primary reasons for a fridge freezing its contents is an improperly set internal temperature. The ideal zone for the fresh food compartment of a refrigerator, specifically a Sub-Zero, ranges between 34°F and 37°F. If you’ve ever wondered, “What temperature should a Sub-Zero refrigerator be set at?”, this is your answer. A setting lower than this sweet spot can cause contents, especially those in the crisper, to freeze.

To Adjust the Temperature:

  • Locate your refrigerator’s thermostat, typically found inside, either on a side wall or ceiling.
  • Refer to your user manual for specific temperature adjustment instructions.
  • After making adjustments, give it 24 hours and check if the temperature is optimal.

Tip: Invest in an external refrigerator thermometer. It can provide a more accurate reading and help you ensure your fridge’s temperature remains consistent.

what temperature should a Sub-Zero refrigerator be set at

Storing Too Much Food

While it’s tempting to stock up, especially during a sale, an overloaded fridge can lead to inconsistent cooling. An overpacked refrigerator struggles with airflow, which means certain sections, particularly the back or areas close to the cooling vents, can become excessively cold.

Balancing Your Storage:

  • Rotate your food items. Consumables you bought first should be at the front, ensuring they get used first.
  • Ensure there’s enough space between items for air to flow.
  • Use clear storage containers so you can easily see and access contents.

Air Vents Are Blocked

Think of your Sub-Zero refrigerator as a breathing entity. The air vents are its lungs. When blocked, it struggles to maintain a balanced temperature.

Detecting and Rectifying the Issue:

  • Regularly check the interior for any items that might be blocking the vents.
  • Avoid shoving large items or containers directly in front of these vents.
  • Ensure that the freezer section, if it shares vents with the fridge, is not overfilled. Overstuffing the freezer can push cold air into the refrigerator section.

Door Gasket Not Sealing

A fridge door that doesn’t seal properly is like leaving a window open during winter. The appliance works overtime, resulting in areas where the food might freeze. Over time, the gasket can accumulate food particles, become deformed, or simply wear out.

Maintenance and Inspection:

  • Clean the gasket periodically with mild soap and warm water.
  • Check for cracks or deformities. If detected, it’s time for a replacement.
  • A simple test involves closing a dollar bill or piece of paper in the door. If you can pull it out easily, the seal isn’t tight.
Sub-Zero refrigerator is too cold

Defective Damper

The damper is the gateway controlling how much cold air comes into the fridge from the freezer. If it malfunctions, you might find your Sub-Zero refrigerator is too cold.


  • If you notice irregular cold spots or consistent overcooling, it might be the damper.
  • While some dampers can be manually adjusted, a faulty one might need replacement. This is a task often best left to professionals.

Condenser Coils Need Cleaning

These coils are the unsung heroes of your refrigerator, dissipating heat from inside the fridge. When they’re coated in dust and grime, they can’t perform efficiently, making the fridge work harder and sometimes become colder.

Steps to Clean the Coils:

  1. Safely disconnect the fridge from power.
  2. Depending on your model, the coils might be at the back or beneath the fridge. Locate them.
  3. Use a coil brush or a vacuum with an attachment to gently remove dust and debris.
  4. Reconnect the fridge and observe its performance over the next day.

End these icy escapades once and for all. And if you still have a Sub-Zero fridge freezing food or creating frost, don’t hesitate to contact Same Day Service Company for expert refrigerator repair services.

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