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Sub-Zero Refrigerator Major Issues

Does Your Sub-Zero Refrigerator Temperature Fluctuate? Here’s Why…

Why does your Sub-Zero Refrigerator temperature fluctuate? You’re probably wondering if this is normal or if there is a bigger problem with your refrigerator.

A Guide To Why Your Sub-Zero Refrigerator Temperature Fluctuates

Knowing the ins-and-outs of your refrigerator is essential to maintaining this type of high-end appliance. That’s why we made this easy-to-use guide to help you better understand what’s normal behavior, and when your Sub-Zero may need to be serviced.

What Temperature Should My Sub-Zero Refrigerator Be Set To?

Your Sub-Zero Refrigerator temperature setting should be set to 38°F. While you can set the temperature lower or higher depending on your preferences, a temperature above 45 degrees is not safe.

According to the FDA, food stored at temperatures above 45°F for more than two hours will spoil. Warm food means mold and bacteria growth that can cause foodborne illnesses and foul smells.

Is It Normal For My Refrigerator Temperature Fluctuate?

Yes, it’s perfectly normal for a Sub-Zero Refrigerator temperature fluctuate. Temperature changes between +/- 5°F are to be expected.

A new refrigerator’s temperature fluctuates as it reaches its desired temperature setting, and can take up to 24 hours to stabilize. Other influences include the level of humidity and external room temperature. Even everyday actions like opening and closing the door can cause fluctuations.

If you’re noticing major refrigerator temperature problems though, there may be a more significant issue. Any fluctuations over +/- 5°F may lead to unwanted freezing in your refrigerator or food spoilage.

Why Is My Refrigerator Temperature Fluctuating?

So what problems cause your refrigerator temperatures to fluctuate? Simple solutions include making sure your refrigerator door closes properly. Clear any food or objects that won’t let to door close and seal correctly. A lack of food or new food also raises the temperatures in your refrigerator. Add more food or water bottles and allow a few hours for the temperature to stabilize.

Does your Sub-Zero Refrigerator temperature fluctuate still? Dirty condenser coils may be the issue. The condenser is what removes heat from your refrigerator. If the coils are dirty, heat can’t escape properly.

You can easily clean the condenser coils on your Sub-Zero Refrigerator yourself:

  1. Unplug your refrigerator from the wall or turn off its circuit breaker.
  2. Remove the grille and use an appliance brush and vacuum to remove dirt and dust.
  3. Replace the grille and allow 24 hours for the temperatures to return to normal.

If neither of these tips solves the problem of extreme temperatures in your fridge, it’s time to get a professional in to service it. Sorting out minor problems as they happen saves you money before a minor inconvenience turns into a major repair job.


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