How to clean the coils on your mini split system

Cleaning the coils on a mini split system is an essential maintenance task that ensures optimal performance and efficiency. Over time, dirt, dust, and debris can accumulate on the coils, hindering their ability to transfer heat effectively. To maintain the longevity and functionality of your mini split system, regular coil cleaning is necessary. Here are some authoritative and informative steps to guide you through the process.

How to clean the coils on your mini split system
Step 1: Before starting any cleaning procedure, it is crucial to turn off the mini split system and disconnect the power supply. This will prevent any accidents or damage during the cleaning process.

Step 2: Locate the indoor unit of your mini split system. This is usually installed high on the wall or suspended from the ceiling. Open the front panel to access the coils. In some models, the front panel may be secured with screws that need to be removed first.

Step 3: Gently brush off any loose dirt, dust, or debris from the coils using a soft brush or a vacuum cleaner with a brush attachment. Take care not to damage the fins or bend them.

Step 4: Prepare a mixture of warm water and mild detergent. Dip a soft cloth or sponge into the solution and carefully wipe the coils, paying special attention to areas with stubborn dirt or stains. Avoid using abrasive cleaners or harsh chemicals as they can damage the coils.

Step 5: After cleaning, rinse the coils thoroughly with clean water to remove any residue from the detergent. Ensure that no water enters the electrical components or other sensitive parts of the unit.

Step 6: Allow the coils to dry completely before reassembling the unit and restoring power. It is essential to ensure that the coils are completely dry to prevent mold or mildew growth.

Regularly cleaning the coils of your mini split system will not only enhance its performance but also prolong its lifespan. It is recommended to clean the coils at least once or twice a year, or more frequently if you live in a dusty or high-pollution area. By following these authoritative steps, you can maintain a clean and efficient mini split system that provides optimal comfort in your space.

How to clean the coils on your mini split system

Content index
  1. Cleaning the coils on a mini split
  2. Cleaning split coils: an expert's guide
  3. Ductless mini split cleaning

Cleaning the coils on a mini split

Cleaning the coils on a mini split is an essential maintenance task that ensures optimal performance and efficiency of the system. To keep your mini split running smoothly, it is important to clean the coils regularly. Here is a step-by-step guide on how to clean the coils on a mini split.

1. Turn off the power: Before starting any maintenance work, it is crucial to turn off the power supply to the mini split. This can be done by either unplugging the unit or turning off the circuit breaker.

2. Remove any debris: Use a soft brush or a vacuum cleaner with a brush attachment to gently remove any dirt, dust, or debris from the coils. Pay close attention to the fins and ensure they are not bent or damaged during the cleaning process.

3. Spray coil cleaner: Using a coil cleaner specifically designed for mini splits, spray the solution onto the coils. Be sure to follow the instructions provided by the manufacturer for the best results. Allow the cleaner to sit for a few minutes to loosen any built-up grime.

4. Rinse with water: After the cleaner has had time to work, rinse the coils thoroughly with water. A gentle stream of water from a hose or a spray bottle can be used for this purpose. Ensure that the water pressure is not too high, as it may damage the delicate fins.

5. Dry and reassemble: Once the coils are clean and rinsed, allow them to air dry completely. It is important to ensure that the coils are completely dry before turning the power back on. Once dry, reassemble any parts that were removed during the cleaning process.

Regularly cleaning the coils on a mini split is important to maintain the efficiency and longevity of the system. By following these steps, you can effectively clean the coils and ensure optimal performance of your mini split. Remember to consult the manufacturer's guidelines and seek professional assistance if you are unsure or uncomfortable performing the cleaning yourself.

Cleaning split coils: an expert's guide

How do you clean split coils?

Cleaning split coils is an essential maintenance task to ensure the optimal functioning and longevity of your air conditioning system. As an expert in the field, it is important to understand the proper technique to clean split coils effectively. Here is a friendly and professional guide to help you through the process.

To start, it is important to gather the necessary tools for the task. These typically include a soft brush or vacuum cleaner, a coil cleaning solution, a spray bottle, a fin comb, and a clean cloth. Before beginning the cleaning process, make sure to disconnect the power supply to avoid any accidents.

The first step is to remove any debris or dust from the surface of the coil. This can be done using a soft brush or a vacuum cleaner with a brush attachment. Gently brush or vacuum along the direction of the fins to prevent damage. It is important to be thorough in this step as any remaining debris can hinder the cleaning process.

Next, prepare a coil cleaning solution by diluting it according to the manufacturer's instructions. Transfer the solution into a spray bottle for easy application. Carefully spray the cleaning solution onto the coils, ensuring that it covers the entire surface. Allow the solution to sit for a few minutes to loosen any dirt or grime.

After the solution has had time to work, use a soft brush or cloth to gently scrub the coils. Be careful not to apply too much pressure, as this can damage the delicate fins. If there are any stubborn areas, a fin comb can be used to carefully straighten and clean the fins. Once the coils are clean, use a clean cloth to wipe away any excess moisture.

Cleaning split coils is an important maintenance task that should be performed regularly. By following this expert guide, you can ensure that your air conditioning system remains efficient and performs optimally for years to come. Remember to always prioritize safety by disconnecting the power supply before beginning any cleaning process.

Ductless mini split cleaning


Regular cleaning of the coils on your mini split system is crucial for maintaining its efficiency and extending its lifespan. By following the simple steps outlined in this article, you can ensure that your system continues to provide you with optimal performance, clean air, and energy savings. Remember to turn off the power before cleaning, use a soft brush or vacuum to remove dirt and debris, and consider using a coil cleaner for more stubborn grime.

Taking the time to clean your mini split system's coils not only improves its overall performance but also helps you save on energy costs. By removing the dirt and debris that accumulates over time, you allow the system to work more efficiently, leading to better cooling or heating in your home or office space. Additionally, a well-maintained system is less likely to develop issues or breakdowns, saving you the hassle and expense of repairs.

We hope this article has provided you with valuable insights and guidance on how to clean the coils on your mini split system. Remember, regular maintenance is the key to keeping your system running smoothly and efficiently. If you found this article helpful, be sure to explore our other articles for more tips and tricks on maintaining your HVAC system and optimizing your indoor comfort.

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    Thomas Farrell

    My name is Thomas Farrell, and I'm 53 years old. I'm a very active person, and I've been working for over 20 years in a cleaning company. I've always loved my work, and I've always wanted to help people, that's the reason I started my website, Cleansensei.com to share my knowledge and experience with others.

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