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How to Clean Sub-Zero Refrigerator Coils in 3 Easy Steps

One of the most useful refrigerator maintenance tips you can receive is to keep your refrigerator coils clean. It’s a quick, easy task but the payoff is big. Knowing how to clean Sub-Zero refrigerator coils will save you money by keeping your refrigerator in good repair.

If you have a Sub-Zero refrigerator not cooling, then cleaning the condenser coils is probably already overdue.

Clean Sub-Zero Refrigerator Coils

The condenser coils allow the refrigerator to dissipate heat in order to maintain cold internal temperatures. When the condenser coils become clogged with dirt and debris, it causes your refrigerator to work overtime trying to cool the air inside.

When clogged coils remain ignored, it can lead to further problems. Broken compressor, fan motor, or other costly repairs can occur as a result of neglected condenser coils.

We recommend coil cleaning twice per year, and perhaps more frequently if you own indoor pets. Learn how to clean refrigerator coils by following these steps:

Prepare to Clean

Prepare to clean Sub-Zero refrigerator coils by doing this:

  • Remove the water filter to gain better access to the condenser coils, if necessary.
  • Wear gloves to protect hands from sharp edges.
  • Grab a soft brush vacuum attachment and a can of compressed air.

Step 1 – Remove Sub-Zero Refrigerator Grille

Before you can clean Sub-Zero refrigerator coils you need to locate the grille. Remove the grille or kick guard to access the condenser coils.

Top Grille: Grasp the grille assembly at the bottom and tilt upward.

how to clean Sub-Zero condenser coils
Image from Sub-Zero

Bottom Grille: Pull the kick guard out away from the refrigerator.

clean Sub-Zero refrigerator coils
Image from Sub-Zero

Step 2 – Clean the Condenser Coils

Once you’re ready, press the power button on the unit to turn off the electricity before performing maintenance.

clean refrigerator coils
Image from Sub-Zero

The best tip on how to clean Sub-Zero condenser coils is to use a soft-bristle brush vacuum attachment. Vacuum the condenser fins gently – be sure to move the vacuum in a vertical motion to align with the condenser fins.

After vacuuming, use a can of compressed air on a low setting to further clean behind the condenser coils. This may be especially helpful if your Sub-Zero model has a screen in front of the condenser. The screen is not removable.

Note: Sub-Zero recommends not using any commercial degreasers or condenser cleaning chemicals.

how to clean refrigerator coils
Image from Sub-Zero

Step 3 – Replace Sub-Zero Refrigerator Grille

Replace the refrigerator grille and press the power button to restore electricity to the appliance.

Watch this complete video on how to clean the Sub-Zero condenser.

Now that you have clean Sub-Zero refrigerator coils, schedule this task into your regular cleaning routine every 6 months, or more frequently if you have pets (pet hair is a bear!). This simple task will save you from costly Sub-Zero refrigerator repair down the line.

Appliance Service Station provides award-winning Sub-Zero service and repair to Seattle, WA, and surrounding areas.

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