Commercial Extractor Fan Repairs

Looking for commercial extractor fan repairs? This article covers everything you need to know, from types of fans to common issues and repair tips.

If your commercial extractor fan is in need of repair, you’ve come to the right place! This article will provide you with all the information you need to know about commercial extractor fan repairs. From the common issues that might arise to the importance of timely repairs, we’ve got you covered. So, sit back, relax, and let’s get your extractor fan back to its efficient self in no time!

Types of Commercial Extractor Fans


When it comes to maintaining a comfortable and safe environment in your business, having a reliable and efficient extractor fan is crucial. These fans are designed to remove airborne contaminants, odors, and excess moisture from commercial spaces. However, not all extractor fans are created equal. There are different types of commercial extractor fans, each with its own unique features and benefits. In this article, we will explore the three main types of commercial extractor fans and help you determine which one is best suited for your business.

Axial Fans

Axial fans are the most common type of commercial extractor fans, known for their simple yet efficient design. These fans consist of a motor and a set of rotating blades that draw air in and expel it in a straight line parallel to the axis of rotation. Axial fans are best suited for applications that require high airflow rates and low pressure, such as ventilation in small offices, shops, or restaurants. They are also relatively compact and affordable compared to other types of extractor fans.

Centrifugal Fans

Centrifugal fans, on the other hand, are designed to generate a higher pressure than axial fans. Instead of expelling air in a straight line, centrifugal fans draw air in through the center of the fan and redirect it at a 90-degree angle before expelling it through an outlet. This design allows for greater versatility in terms of airflow direction and pressure. Centrifugal fans are commonly used in larger commercial spaces that require more powerful ventilation, such as industrial warehouses, factories, or large-scale kitchens.

Mixed Flow Fans

As the name suggests, mixed flow fans combine the features of both axial and centrifugal fans. These fans utilize a combination of axial and centrifugal flow patterns to achieve a balance between airflow rate and pressure. Mixed flow fans are often used in commercial settings that require a moderate level of airflow and pressure, such as offices, retail stores, or hotels. They offer a good compromise between the affordability of axial fans and the versatility of centrifugal fans.

Choosing the Right Extractor Fan for Your Business

To choose the right extractor fan for your business, it’s important to consider several factors. First, determine the size of your commercial space and calculate the required airflow rate and pressure. This will help you determine whether an axial, centrifugal, or mixed flow fan is best suited for your needs. Additionally, consider the noise level, energy efficiency, and maintenance requirements of the fan. Consulting with a ventilation expert or an experienced contractor can also provide valuable insights and recommendations.

Common Issues with Commercial Extractor Fans

Motor Problems

Motor problems are one of the most common issues faced with commercial extractor fans. Over time, the motor may become worn out, leading to decreased performance or complete failure. This can result in reduced airflow or excessive noise. In some cases, the motor may need to be replaced to restore the fan’s functionality.

Fan Blade Issues

Fan blades can also experience problems due to wear and tear or improper maintenance. Accumulated dirt, dust, or debris can affect the balance and performance of the fan blades, causing vibrations, noise, or reduced airflow. Regular cleaning and realigning of the fan blades can help prevent these issues and ensure optimal performance.

Wiring and Electrical Problems

Electrical issues can pose serious risks and affect the proper functioning of a commercial extractor fan. Loose or damaged wiring, faulty switches, or inadequate power supply can lead to issues such as intermittent operation, complete failure, or even electrical hazards. It is important to regularly inspect the wiring and electrical components of the fan and address any issues promptly.

Reduced Airflow

One of the main purposes of a commercial extractor fan is to ensure adequate ventilation and airflow. However, over time, various factors can lead to reduced airflow. Accumulated dirt or debris in the ductwork or vents, clogged filters, or faulty components can restrict the airflow, resulting in ineffective ventilation. Regular cleaning and maintenance can help prevent and address issues related to reduced airflow.

Excessive Noise

Excessive noise from a commercial extractor fan can be disruptive and indicate underlying issues. This may be caused by loose or damaged fan blades, motor problems, or imbalanced components. It is important to properly diagnose the source of the noise and address it to ensure a quiet and comfortable environment in your business.

Faulty Controls

Faulty controls, such as malfunctioning switches or timers, can prevent the proper operation of a commercial extractor fan. This can lead to inadequate ventilation or unnecessary energy consumption. It is important to regularly test and maintain the controls of the fan to ensure they are functioning properly and address any issues promptly.

Troubleshooting and Repairs

Motor Replacement

If the motor of your commercial extractor fan is experiencing issues, such as reduced performance or complete failure, it may need to be replaced. This is a task that is best left to a professional technician, as it requires technical knowledge and expertise to ensure a proper installation.

Cleaning and Realigning Fan Blades

Regular cleaning and realigning of the fan blades can help prevent issues such as vibrations, noise, and reduced airflow. This can be done by gently removing any accumulated dirt, dust, or debris from the blades and ensuring they are properly aligned. However, caution must be exercised during this process to avoid damaging the blades or other components.

Electrical Repairs

Electrical issues with a commercial extractor fan should always be addressed by a qualified electrician. They will have the necessary skills and knowledge to safely diagnose and repair any wiring or electrical problems. It is crucial to never attempt electrical repairs unless you are a trained professional.

Cleaning and Maintaining Ducts and Vents

Regular cleaning and maintenance of the ducts and vents connected to the commercial extractor fan is essential for optimal performance. This involves removing any debris or obstructions that may be blocking the airflow, as well as ensuring the vents are properly secured and sealed. It is recommended to schedule professional duct cleaning services periodically to thoroughly clean and maintain the ventilation system.

Replacing Faulty Controls

If the controls of your commercial extractor fan are malfunctioning, it may be necessary to replace them. This can include switches, timers, or other control devices. It is important to choose high-quality replacement controls and have them installed by a professional to ensure they are compatible with your fan and properly integrated into the system.

Professional Repair Services

For complex issues or if you are unsure about how to troubleshoot and repair your commercial extractor fan, it is advisable to seek the help of a professional repair service. They have the expertise, specialized tools, and knowledge to diagnose and address a wide range of issues. Professional repair services can also offer preventative maintenance plans to help prolong the lifespan of your extractor fan and ensure its optimal performance.

Preventive Maintenance

Regular Cleaning and Inspection

Regular cleaning and inspection of your commercial extractor fan is crucial to keep it in optimal condition. This includes wiping down the exterior surfaces, removing any accumulated dirt or debris, and inspecting for any visible signs of wear or damage. Cleaning should also extend to the ducts, vents, and filters connected to the fan to prevent clogging and ensure proper airflow.


Proper lubrication of the motor and moving parts of your commercial extractor fan can help reduce friction and extend its lifespan. Consult the manufacturer’s instructions or a professional technician to determine the appropriate lubricant and schedule for lubrication.

Checking and Replacing Filters

Filters play a critical role in capturing airborne contaminants and maintaining a healthy indoor environment. Regularly inspect the filters of your commercial extractor fan and replace them as needed. This will help ensure proper ventilation and prevent the buildup of pollutants in your business space.

Proper Ventilation System Design

Proper ventilation system design is essential to maximize the efficiency and effectiveness of your commercial extractor fan. It is important to consider factors such as the size and layout of your business space, the type of activities conducted, and the number of occupants. Consulting with a ventilation expert can help you design a system that meets your specific needs and complies with relevant regulations and standards.

DIY vs Professional Repairs

Identifying DIY Repairs

Some minor issues with your commercial extractor fan can be addressed through DIY repairs. These may include tasks such as cleaning the fan blades, replacing filters, or tightening loose screws. However, it is important to have a clear understanding of your own skills and limitations. If you are unsure or uncomfortable with any repair tasks, it is best to seek professional help to avoid potential damage or personal injury.

When to Seek Professional Help

There are certain situations where it is recommended to seek professional help for repairs. These may include complex issues such as motor replacement, electrical repairs, or major structural repairs. Additionally, if you are uncertain about the cause of the problem or the appropriate solution, it is best to consult with a professional technician who can provide expert advice and assistance.

Benefits of Professional Repairs

Opting for professional repairs for your commercial extractor fan offers several benefits. First and foremost, professional technicians have the necessary knowledge, experience, and tools to accurately diagnose and address issues. They can ensure that repairs are performed safely and efficiently, reducing the risk of further damage or personal injury. Additionally, professional repairs often come with warranties or guarantees, providing you with peace of mind and protection against future issues.

Cost of Commercial Extractor Fan Repairs

Factors Affecting the Cost

The cost of repairing a commercial extractor fan can vary depending on several factors. The extent and complexity of the issue, the type and age of the fan, as well as the cost of replacement parts are all considerations that can affect the overall cost. Additionally, the location and availability of repair services in your area can also impact the cost.

Average Repair Costs

On average, the cost of repairing a commercial extractor fan can range from $100 to $500 or more. Simple repairs, such as cleaning or replacing minor components, may be on the lower end of the spectrum, while more complex repairs, such as motor replacement or major structural repairs, can be more expensive. It is recommended to obtain multiple quotes from reputable repair services to compare prices and services offered.

Choosing a Repair Service

When choosing a repair service for your commercial extractor fan, it is important to consider factors beyond just the cost. Look for a service provider with a good reputation, positive customer reviews, and relevant certifications or credentials. Clear communication and transparency regarding the repair process, warranty or guarantee policies, and pricing are also important considerations to ensure a satisfactory repair experience.

When to Consider Replacement

Age of the Fan

The age of your commercial extractor fan is an important factor to consider when deciding between repairs and replacement. As fans age, they may become less efficient, more prone to issues, and harder to find replacement parts for. If your fan is more than 10 years old and has experienced multiple repairs or significant performance issues, it may be more cost-effective in the long run to replace it with a newer, more efficient model.

Frequency of Repairs

If your commercial extractor fan requires frequent repairs or is experiencing recurring issues, it may be a sign that it is reaching the end of its lifespan. Constant repairs can become costly and inconvenient, and there may come a point where it is more practical to invest in a new fan rather than continuing to repair an old one.

Energy Efficiency

Energy efficiency is an important consideration in commercial spaces, as it can impact both the environment and your business’s operating costs. Older extractor fans may be less energy-efficient compared to newer models that incorporate advancements in motor technology and design. Upgrading to a more energy-efficient fan can help reduce your business’s carbon footprint and potentially save on energy expenses.

Upgrading for Better Performance

If you find that your current commercial extractor fan is no longer meeting your business’s ventilation needs, it may be time to consider a replacement. Upgrading to a more powerful or versatile fan can provide better airflow, improved air quality, and a more comfortable environment for your employees and customers. Consulting with a ventilation expert can help you determine the most suitable replacement option for your specific requirements.

Importance of Timely Repairs

Health and Safety Compliance

Timely repairs of your commercial extractor fan are essential for maintaining a healthy and safe environment in your business. Proper ventilation plays a crucial role in removing airborne contaminants, odors, and excess moisture that can lead to health issues or damage to your property. By addressing fan issues promptly, you can ensure that your business remains compliant with health and safety regulations and provide a comfortable environment for everyone.

Energy Efficiency and Cost Savings

A malfunctioning or inefficient commercial extractor fan can result in unnecessary energy consumption and increased operating costs. By addressing fan issues in a timely manner, you can ensure that the fan is operating at optimal efficiency, reducing energy waste and potentially saving on utility expenses. Additionally, repairs are often more cost-effective than replacing a fan completely, especially if addressed before extensive damage occurs.

Maintaining a Comfortable Environment

A properly functioning commercial extractor fan is essential for maintaining a comfortable environment for both employees and customers. Adequate ventilation helps control temperature, humidity, and odors, creating a pleasant and inviting atmosphere. Timely repairs can prevent discomfort, complaints, and potential negative impacts on your business’s reputation.

Finding a Reliable Repair Service

Understanding Credentials and Certifications

When looking for a reliable repair service for your commercial extractor fan, it is important to understand the credentials and certifications they possess. Look for repair services that have trained and certified technicians with expertise in commercial ventilation systems. Certifications from recognized industry organizations can provide assurance of their knowledge and competence.

Reading Reviews and Testimonials

Reading reviews and testimonials from previous customers can provide valuable insights into the quality and reliability of a repair service. Look for repair services with positive reviews and testimonials that highlight their professionalism, expertise, and customer service. Online platforms and websites dedicated to reviewing local businesses can be helpful resources for finding trustworthy repair services.

Getting Recommendations

Seeking recommendations from trusted sources, such as fellow business owners, colleagues, or professional networks, can help you find repair services that have been proven reliable. Personal recommendations provide firsthand information about the quality of service, responsiveness, and overall satisfaction with the repair service.

Clear Communication and Transparent Pricing

When contacting repair services, pay attention to their communication style and responsiveness. A reliable repair service will be prompt, clear, and transparent in their communication. They should provide detailed explanations of the repair process, pricing, and any warranties or guarantees offered. Avoid repair services that are vague or unwilling to provide clear information.


Regular maintenance and timely repairs are key to ensuring the longevity and optimal performance of your commercial extractor fan. By choosing the right type of fan for your business, identifying common issues, and understanding troubleshooting and repair techniques, you can keep your fan operating at its best. Whether it’s DIY repairs or seeking the help of professional technicians, addressing issues promptly will safeguard the health and efficiency of your business. Remember to consider factors such as cost, frequency of repairs, and energy efficiency when deciding between repairs and replacement. By finding a reliable repair service and prioritizing a comprehensive preventive maintenance plan, you can rest assured knowing that your commercial extractor fan is in good hands. Safeguard health, efficiency, and comfort in your business by giving your extractor fan the attention it deserves.

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