Cleaning refrigerator coils regularly not only helps your refrigerator stay cool but can prevent overworking essential components like the compressor and motor. Learn how to clean Sub-Zero Pro 48 refrigerator coils without damaging them. All you’ll need is a vacuum hose brush attachment.
Clean Sub-Zero Pro Refrigerator Coils with These Simple Steps
So, how do you clean the coils on a Sub-Zero refrigerator? Where are the coils located? How often is this maintenance required? The following steps address these questions so it’s easy to perform this important maintenance regularly.
When to Clean Coils on a Sub-Zero Refrigerator
It’s recommended that you clean Sub-Zero Pro 48 refrigerator coils every 3-6 months. If you have a pet in your home fur and dander may require you to perform more frequent cleanings.
Regular coil cleanings prevent the buildup of dirt and dust that can keep the coils from properly cooling refrigerant. It also avoids overtaxing important components like the compressor and motor that have to work harder if refrigerant isn’t properly cooled.
Step 1: Shut Off Power from the Control Panel
To avoid the risk of injury, our Sub-Zero refrigerator cleaning instructions begin by shutting off power to your refrigerator. You can shut the electricity off by pressing the power button on the control panel at the top of the refrigerator’s interior.
We also suggest wearing gloves for this Sub-Zero refrigerator maintenance task to avoid injury from the sharp condenser fins.
Step 2: Locate the Condenser Coils
Where is the condenser on a Sub-Zero refrigerator? On the Pro 48 model it’s located behind the refrigerator grille. The grille is opened by pulling out the bottom edge and tilting it forward. This allows for best access to the coils.

Step 3: Vacuum the Condenser
To clean Sub-Zero Pro 48 refrigerator coils as efficiently as possible we recommend using a vacuum cleaner brush attachment. Follow these steps for the best results and to avoid damaging the delicate condenser fins:
- Run the brush attachment vertically up and down in the direction of the fins
- Use gentle pressure to avoid damage
- Repeat as needed to vacuum up all visible dust and dirt
- Vacuum the area around the compressor and the floor to remove any fallen dust and dirt

Step 4: Replace Refrigerator Grille
The final step in how to clean Sub-Zero refrigerator coils involves replacing the grille to its closed position. Simply pull the grille outward and push down to secure it in place. If you were experiencing Sub-Zero cooling issues, it may take up to 24 hours for the refrigerator to reach the correct temperature.
Regular cleaning of condenser coils can help your refrigerator run more efficiently and prevent malfunctions. However, if the need for a Sub-Zero repair arises, Same Day Appliance Repair is here to help!