How to clean the evaporator coils in ice cream display cases?
May 22, 2025
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As a supplier of ice cream display cases, I understand the importance of maintaining these units to ensure they operate efficiently and keep your ice cream at the perfect temperature. One crucial aspect of this maintenance is cleaning the evaporator coils. In this blog post, I'll guide you through the process of cleaning the evaporator coils in ice cream display cases, sharing tips and best practices based on my experience in the industry.
Why Clean the Evaporator Coils?
The evaporator coils in ice cream display cases play a vital role in the refrigeration process. They absorb heat from the inside of the case, allowing the refrigerant to evaporate and cool the air. Over time, these coils can accumulate dust, dirt, and debris, which can reduce their efficiency. When the coils are dirty, they have to work harder to absorb heat, leading to increased energy consumption, higher operating costs, and potentially shorter lifespan of the refrigeration system. Additionally, dirty coils can also affect the temperature inside the case, which can compromise the quality and safety of your ice cream.
Tools and Materials You'll Need
Before you start cleaning the evaporator coils, gather the following tools and materials:
- Screwdriver: To remove the access panels to the evaporator coils.
- Soft brush: A soft-bristled brush, such as a paintbrush or a coil cleaning brush, to gently remove loose dust and debris from the coils.
- Coil cleaner: There are various coil cleaners available on the market. Choose a cleaner specifically designed for evaporator coils. Make sure it is safe for use with the materials in your ice cream display case.
- Water source: You'll need a way to rinse the coils after applying the cleaner. This could be a garden hose with a spray nozzle or a bucket of water and a sponge.
- Safety equipment: Wear gloves and safety glasses to protect your hands and eyes from the cleaner and any debris.
Step-by-Step Cleaning Process
Step 1: Turn Off the Power
Before you begin any maintenance work on the ice cream display case, it's essential to turn off the power. This will prevent any electrical accidents and ensure your safety while working on the unit. Locate the power switch or unplug the unit from the electrical outlet.
Step 2: Remove the Access Panels
Use a screwdriver to remove the access panels that cover the evaporator coils. These panels are usually located at the back or bottom of the ice cream display case. Keep the screws in a safe place so you can easily reinstall the panels later.
Step 3: Inspect the Coils
Once you have access to the evaporator coils, take a close look at them. Check for any signs of damage, such as bent fins or leaks. If you notice any significant damage, it's best to contact a professional technician for repair. Also, note the level of dirt and debris on the coils. This will help you determine how much cleaning is required.
Step 4: Brush the Coils
Use a soft brush to gently remove any loose dust and debris from the coils. Start from the top and work your way down, being careful not to bend the delicate fins. Brushing the coils first will make it easier to remove the remaining dirt when you apply the cleaner.

Step 5: Apply the Coil Cleaner
Follow the instructions on the coil cleaner product. Usually, you'll need to spray the cleaner onto the coils, making sure to cover all surfaces. Allow the cleaner to sit on the coils for the recommended amount of time, typically 10 - 15 minutes. This will give the cleaner time to break down the dirt and grime.
Step 6: Rinse the Coils
After the cleaner has had time to work, use a water source to rinse the coils thoroughly. Start from the top and work your way down, making sure to remove all the cleaner and loosened dirt. If you're using a garden hose, use a gentle spray to avoid bending the fins. If you're using a bucket of water and a sponge, gently wipe the coils to remove the cleaner.
Step 7: Dry the Coils
Once you've rinsed the coils, allow them to dry completely before reassembling the access panels. You can use a clean, dry cloth to gently pat the coils dry or let them air dry. Make sure there is no moisture left on the coils, as this can lead to rust and other problems.
Step 8: Reinstall the Access Panels
After the coils are dry, reinstall the access panels using the screws you removed earlier. Make sure the panels are securely in place.
Step 9: Turn On the Power
Once the access panels are reinstalled, turn on the power to the ice cream display case. Check to make sure the unit is operating normally and that the temperature inside the case is stable.
Maintenance Tips
- Regular Cleaning: It's recommended to clean the evaporator coils at least once every three to six months, depending on the usage and environment of the ice cream display case. If the case is located in a dusty or dirty area, you may need to clean the coils more frequently.
- Keep the Area Around the Case Clean: Make sure the area around the ice cream display case is clean and free of dust and debris. This will help prevent dirt from accumulating on the coils.
- Inspect the Coils Regularly: Periodically check the evaporator coils for any signs of dirt or damage. Catching problems early can help prevent more significant issues down the line.
Related Products
If you're interested in other display cases for your business, we also offer Acrylic Bakery Display Case and Refrigerated Display Unit. These products are designed to meet the specific needs of bakeries and other food businesses, providing excellent visibility and temperature control. And of course, our Ice Cream Display Cases are built to keep your ice cream fresh and appealing.
Contact for Purchase
If you're in the market for high-quality ice cream display cases or have any questions about our products, we'd love to hear from you. Whether you're looking to upgrade your existing display or start a new business, our team of experts can help you find the perfect solution. Contact us to start a discussion about your specific requirements and get a quote.
References
- "Commercial Refrigeration Handbook" by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI)
- Manufacturer's manuals for ice cream display cases
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