Fan Coil Unit Coil Cleaning Chemicals London

In order to maintain the efficiency and longevity of your fan coil unit, it is essential to regularly clean the coils. However, simply using water and detergent may not always yield desired results. T...

In order to maintain the efficiency and longevity of your fan coil unit, it is essential to regularly clean the coils. However, simply using water and detergent may not always yield desired results. That’s where fan coil unit coil cleaning chemicals come in. These specialized solutions, specifically formulated for fan coil units, are designed to effectively remove dirt, dust, and debris that can accumulate on the coils over time. By incorporating these chemicals into your cleaning routine, you can ensure that your fan coil unit continues to operate optimally, providing you with clean and healthy air. At London Fan Coil Cleaning, we offer a range of high-quality cleaning chemicals specifically tailored to meet the unique needs of fan coil units in the London area. With our expertise and industry-leading products, you can maintain a clean and efficient fan coil unit.

Importance of Regular Fan Coil Unit Coil Cleaning

Regular fan coil unit coil cleaning is crucial to ensure efficient performance, reduce energy consumption, and improve indoor air quality. Neglecting the cleaning of these coils can lead to various issues, such as reduced airflow, decreased cooling and heating capacity, and even the growth of harmful bacteria and molds. By implementing a regular coil cleaning routine, you can maintain optimal performance and extend the lifespan of your fan coil unit.

Ensures Efficient Performance

Over time, dust, dirt, and other contaminants accumulate on the coil surfaces of a fan coil unit. This buildup acts as insulation, hindering the transfer of heat between the coils and the surrounding air. As a result, the unit has to work harder to achieve the desired cooling or heating effect, leading to increased energy consumption and reduced efficiency. Regular coil cleaning removes these obstructions, allowing the fan coil unit to operate at its optimal level and maintain consistent performance.

Reduces Energy Consumption

A clean fan coil unit operates more efficiently, requiring less energy to achieve the desired temperature. When the coils are covered in dust and dirt, the unit has to work harder and for longer periods to provide the same level of cooling or heating. This increased workload leads to higher energy consumption, which not only impacts your utility bills but also contributes to unnecessary environmental strain. By regularly cleaning the coils, you can minimize energy consumption and lower your carbon footprint.

Improves Indoor Air Quality

Dirty coils in a fan coil unit can negatively impact indoor air quality. When dust and debris accumulate on the coils, they create a breeding ground for bacteria, molds, and other allergens. As air is drawn into the unit for cooling or heating, these contaminants can be circulated throughout the space, potentially causing respiratory issues or exacerbating existing allergies. Regular coil cleaning removes these pollutants, ensuring cleaner and healthier indoor air for occupants.

Types of Fan Coil Unit Coil Cleaning Chemicals

There are different types of cleaning chemicals available for fan coil unit coil cleaning. The choice of chemical depends on various factors, such as the type of coil material, the level of dirt and debris, and any specific cleaning requirements. Here are three common types of coil cleaning chemicals:

Alkaline Coil Cleaners

Alkaline coil cleaners are highly effective in removing grease, oil, and stubborn dirt from the coil surfaces. These cleaners are generally safe to use on most coil materials, including aluminum and copper. Alkaline coil cleaners work by breaking down and emulsifying the contaminants, making them easier to remove during the cleaning process. However, it is important to follow the manufacturer’s instructions and use appropriate personal protective equipment when using alkaline coil cleaners.

Acid Coil Cleaners

Acid coil cleaners are specifically designed to remove mineral deposits and scale buildup from the coil surfaces. These cleaners are typically used when a fan coil unit has been exposed to hard water or when scale formation is evident. It is important to note that acid coil cleaners should only be used on coils made of materials that are resistant to acid, such as stainless steel. Copper and aluminum coils should not be cleaned with acid-based cleaners as they can corrode and damage the coils.

Neutral Coil Cleaners

Neutral coil cleaners are a versatile option that can effectively clean various types of coil materials. These cleaners are formulated to be neither acidic nor alkaline, making them safe to use on a wide range of materials. Neutral coil cleaners are ideal for routine maintenance cleaning, as they help remove general dirt and debris without causing any damage to the coils themselves. However, in cases where heavy grease or scale is present, more specialized cleaners may be necessary.

Choosing the Right Coil Cleaning Chemicals

When choosing coil cleaning chemicals, several factors need to be considered to ensure the best results and minimize any potential risks. Here are some key factors to keep in mind:

Consider the Coil Material

Different types of coil materials may have different cleaning requirements. It is essential to choose a cleaning chemical that is compatible with the specific material of your fan coil unit. For example, if you have aluminum coils, it is important to select a cleaner that is suitable for use on aluminum surfaces. Using the wrong chemical can cause corrosion or damage to the coils, leading to costly repairs or replacement.

Safety Considerations

Safety should always be a top priority when selecting coil cleaning chemicals. Look for products that are labeled as safe for use in occupied spaces and that comply with relevant safety standards. It is also important to consider the potential risks associated with the specific cleaning chemical, such as its toxicity, flammability, and potential for skin or eye irritation. Be sure to follow the manufacturer’s instructions and use appropriate personal protective equipment when handling and applying the chemicals.

Environmental Impact

Considering the environmental impact of coil cleaning chemicals is becoming increasingly important. Look for eco-friendly options that are biodegradable and have low volatile organic compound (VOC) content. Choosing environmentally-friendly chemicals not only reduces the impact on the environment but also promotes better indoor air quality for occupants.

Effectiveness and Efficiency

Evaluate the effectiveness and efficiency of the coil cleaning chemical before making a decision. Look for products that are specifically formulated to remove the types of dirt and contaminants commonly found on fan coil unit coils. Additionally, consider the overall cleaning process, including the required contact time, ease of application, and any additional steps needed. Choosing a chemical that is both effective and efficient will save you time and effort in the cleaning process.

Preparing for Coil Cleaning

Before diving into the coil cleaning process, it is essential to properly prepare the area and ensure the necessary equipment and safety measures are in place. Follow these steps for a smooth and successful coil cleaning:

Turn Off the Fan Coil Unit

Ensure that the fan coil unit is turned off and disconnected from the power supply before starting the cleaning process. This precaution is vital to prevent any accidents or electrical hazards during cleaning.

Protecting the Area

Take the necessary steps to protect the area around the fan coil unit from any potential damage during the cleaning process. Cover nearby furniture, floors, and other surfaces with protective materials, such as plastic sheets or drop cloths. Doing so will prevent any cleaning chemicals or debris from causing unintended harm.

Gathering the Necessary Equipment

Collect all the equipment and tools required for the coil cleaning process. This may include cleaning brushes, sprayers, protective gloves, goggles, and any other specialized equipment based on the type of cleaning chemical being used. Ensure that you have everything you need before getting started to avoid interruptions during the cleaning process.

Checking for Access Panels

Before beginning the cleaning process, check for any access panels or covers that need to be removed to gain access to the fan coil unit’s coils. These panels may vary in location and design depending on the specific unit. Refer to the manufacturer’s instructions or consult with a professional if you are unsure about the location of the access panels.

Step-by-Step Guide to Cleaning Fan Coil Unit Coils

Cleaning the coils of a fan coil unit requires a systematic approach to ensure thorough and effective cleaning. Follow these step-by-step instructions to clean the coils and restore optimal performance:

Removing the Coil Access Panels

Carefully remove the access panels or covers that provide access to the coils. Use the appropriate tools, such as a screwdriver or wrench, to loosen and remove any screws or fasteners securing the panels. Set aside the panels in a safe place for reassembly later.

Inspecting the Coils

Take a close look at the coils to assess their condition and the extent of dirt or debris buildup. Look for any signs of damage, such as bent fins or excessive corrosion, which may require additional attention or repair. If significant damage is present, it is advisable to consult with a professional technician.

Applying the Coil Cleaning Chemicals

Select the appropriate coil cleaning chemical based on the type of dirt or contaminants on the coils. Follow the manufacturer’s instructions regarding the dilution ratio and application method. Apply the cleaning chemical evenly onto the coil surfaces, ensuring thorough coverage. Pay special attention to areas with heavy dirt or grease buildup.

Agitating the Coils

After applying the cleaning chemical, use a soft-bristle brush or coil cleaning brush to gently agitate the coils. This helps break up stubborn dirt or debris, allowing the cleaning chemical to penetrate more effectively. Be cautious not to apply excessive force or use abrasive brushes that could damage the delicate coil fins.

Rinsing the Coils

Once the coils have been agitated, rinse them thoroughly with clean water. This can be done using a spray bottle, pressure washer, or hose with a gentle stream of water. Ensure that all traces of the cleaning chemical and loosened debris are completely rinsed away. Take care to avoid excessive water pressure that could bend or damage the coil fins.

Cleaning the Drain Pan and Drain Lines

While the coils are being rinsed, take the opportunity to clean the fan coil unit’s drain pan and drain lines. Remove any collected debris or blockages and ensure that the drain is free-flowing. A clogged drain can lead to water leakage or mold growth within the unit.

Reassembling the Unit

Once the coils are completely cleaned and rinsed, allow them to dry before reassembling the fan coil unit. Make sure all components, including access panels and covers, are securely and correctly reinstalled. Double-check that no tools or equipment have been left behind inside the unit.

Safety Measures and Precautions

Safety should always be a top priority when performing fan coil unit coil cleaning. Take the following safety measures and precautions to minimize the risk of accidents or injuries:

Wearing Protective Gear

Always wear appropriate personal protective equipment (PPE) when handling and applying coil cleaning chemicals. This may include gloves, goggles or safety glasses, and a mask or respirator, depending on the specific chemical being used. PPE helps protect your skin, eyes, and respiratory system from potential chemical exposure and inhalation.

Proper Ventilation

Ensure that the area where the fan coil unit is located has proper ventilation. Open windows or doors, if possible, to allow for the circulation of fresh air during the cleaning process. Adequate ventilation helps minimize the buildup of fumes or strong odors from the cleaning chemicals.

Avoiding Contact with Electrical Components

Exercise caution to avoid contact with electrical components of the fan coil unit, both during and after the cleaning process. This includes avoiding any contact with exposed wiring, electrical connections, or control panels. If you are unsure about the location of electrical components, consult with a professional technician to ensure your safety.

Professional Coil Cleaning Services

While regular maintenance and cleaning can be done by building owners or facility managers, there are compelling reasons to consider hiring professional coil cleaning services. Here are some benefits of entrusting the task to professionals:

Benefits of Hiring Professionals

Professional coil cleaning services bring specialized expertise and equipment to ensure optimal cleaning and performance of fan coil units. They have the experience and knowledge to identify potential problems and address them promptly. Professionals also have access to specialized tools and cleaning agents that may not be readily available to those without professional training.

Frequency of Professional Cleaning

The frequency of professional coil cleaning depends on various factors, such as the environment, usage patterns, and manufacturer recommendations. Typically, professional coil cleaning is recommended at least once a year for most fan coil units. However, in environments with high levels of dust, pollutants, or use of chemical processes, more frequent cleaning may be required.

Cost Considerations

The cost of professional coil cleaning services varies depending on factors such as the size of the fan coil unit, the extent of dirt or debris buildup, and any additional services required. While professional cleaning services may come at a higher upfront cost compared to DIY cleaning, it is important to consider the time, effort, and potential risks associated with self-cleaning. Consulting with professional service providers can help determine the most cost-effective and sustainable maintenance plan for your specific needs.

Proper Maintenance and Upkeep

Regular fan coil unit maintenance and upkeep go hand in hand with coil cleaning to ensure optimal performance and longevity. Here are some essential maintenance tasks to incorporate into your routine:

Regular Filter Replacement

Filters in fan coil units are designed to capture dust, debris, and other pollutants before they reach the coils. Regularly inspect and replace filters as recommended by the manufacturer or professional technician. Clogged or dirty filters impede airflow and reduce the unit’s efficiency, leading to increased energy consumption and potential damage to the coils.

Coil Inspection

Perform periodic inspections of the fan coil unit coils to detect any signs of damage, corrosion, or blockages. Bent or damaged fins should be straightened or repaired to ensure optimal heat transfer. Addressing any issues promptly can prevent more extensive damage and costly repairs down the line.

Airflow Control

Ensure that the fan speed and airflow settings are correctly adjusted to meet the cooling or heating requirements of the space. Proper airflow control helps maintain comfortable indoor temperatures while minimizing energy consumption. Consult the fan coil unit’s operating manual or seek professional guidance for optimal airflow settings.

Ductwork Inspection and Cleaning

Regularly inspect the ductwork connected to the fan coil unit to detect any signs of leaks, blockages, or excessive dust accumulation. Sealing any leaks and cleaning the ducts when necessary improves the overall air distribution and reduces the risk of contaminants being circulated throughout the space. Consider professional duct cleaning services for a thorough and efficient cleaning process.

Common Coil Cleaning Mistakes to Avoid

While regular coil cleaning is essential, it is equally important to avoid common mistakes that can hamper the effectiveness of the cleaning process or cause damage to the fan coil unit. Here are some mistakes to avoid:

Using the Wrong Chemicals

Using cleaning chemicals that are not suitable for the specific coil material can result in corrosion or damage. Always check the manufacturer’s recommendations and consult with professionals if you are unsure about the compatibility of a particular chemical with your fan coil unit’s coils.

Overlooking Several Access Points

Fan coil units may have multiple access points that provide access to different sections of the unit. Ensure that all access panels or covers are removed during the cleaning process to allow for thorough cleaning. Neglecting certain access points can lead to incomplete cleaning and compromised performance.

Improper Application of Chemicals

Follow the manufacturer’s instructions for the proper application and usage of cleaning chemicals. Applying too much or too little chemical solution can affect the effectiveness of the cleaning process. Additionally, always adhere to the recommended contact time for the chemicals to achieve optimal results.


Regular cleaning of fan coil unit coils is crucial for maintaining efficient performance, reducing energy consumption, and improving indoor air quality. By implementing a thorough coil cleaning routine, choosing the right cleaning chemicals, and following proper maintenance practices, you can ensure the longevity of your fan coil unit, enhance energy efficiency, and provide a healthier indoor environment for occupants. Whether you choose to perform the cleaning yourself or enlist the help of professional services, regular coil cleaning is a wise investment in the long-term performance of your fan coil unit.

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