When you own a Sub-Zero refrigerator, the last thing you need is for it to suddenly stop cooling. Lack of proper maintenance is the most common culprit, which is why Sub-Zero refrigerator coil cleaning is so important. Prevent a major repair by following our guide to keeping your model clean and running strong.

Guide to Sub-Zero Refrigerator Coil Cleaning

Keeping your condenser coils clean is fast, easy, and is sure to save you money down the road. Just follow these simple steps to maximize efficiency and reduce the likelihood of a breakdown.

Why Are Clean Refrigerator Coils So Important?

Refrigerators rely on a condenser to remove heat and provide cool air throughout the unit. Unfortunately, it’s inevitable that dust and debris will build up on the condenser coils over time. The more dirt that collects on the coils, the harder your refrigerator has to work to keep cold.

If left unchecked, this can lead to a broken fan motor, compressor, or other critical components that require pricey repairs. We recommend that you perform a coil cleaning at least 1-2 times per year, or whenever you see the Sub-Zero Vacuum Condenser message. And if you’re a pet owner, consider doubling the frequency of your cleanings.

cleaning sub-zero refrigerator coils

Image from Appliances Connection

How to Clean Sub-Zero Coils

Before you begin, make sure that you’re prepared for the task at hand. You’ll need an appliance brush, gloves, and a vacuum cleaner with a hose attachment. Also, be careful not bend any of the condenser fins while cleaning as this can damage the part.

Turn off the power to the unit before starting your cleaning. Once the refrigerator is safe to work on, follow these steps:

Step 1 – Remove Refrigerator Grille

The first step in your Sub-Zero refrigerator coil cleaning should be to access the condenser. For most models, this will be found behind the large grille near the top of the unit.

Some models have grilles that can be lifted straight up and removed, while others need to be unscrewed. For these units, open the refrigerator doors and unscrew the grille from the bottom. Now you can tilt the top of the grille toward you, unhook the springs from the back, and lift it off to remove.

how to clean sub-zero coils

Image from Sub-Zero

Step 2 – Clean Off Dust & Debris

Cleaning Sub-Zero refrigerator coils is relatively straightforward. Use your appliance brush to remove any dust, lint, or other debris clinging to the condenser. Be as gentle as you can with your brush, but also be sure to remove as much dirt as possible. Be careful not to damage or disconnect any other parts.

Once all of the dust has been cleaned off, use your vacuum hose attachment to clear out the compartment. Once the entire condenser section looks like new again, you can move on to the final step.

sub-zero vacuum condenser message

Image from Sub-Zero

Step 3 – Reinstall the Grille

Now you can start to finish up by putting the refrigerator grille back into place. Slot the grille back into position, and make sure to reconnect the springs to the back if necessary. Replace the screws that were removed during Step 1 and you’re good to go for a test run.

Power your refrigerator back up and let it run for at least a day before checking the temperature. If it reaches the proper level, then congratulations – you’re now a Sub-Zero refrigerator coil cleaning expert!

Don’t forget to repeat the process following our recommended cleaning schedule. If you’re still experiencing cooling problems after cleaning though, call the Sub-Zero refrigerator repair Jefferson Parish experts at Solar Appliance right away.