air conditioning installers brisbane

Effects of a Dirty Fan Wheel on Your Air Conditioner: Insights from the Best Air Conditioning Installers in Brisbane

The cooling comfort provided by air conditioners is often taken for granted until something goes wrong. One crucial component that can significantly impact the performance of your air conditioner is the fan wheel. As the premier air conditioning installers in Brisbane, we’ve witnessed firsthand the consequences of neglecting this vital part of your AC system. In this blog, we’ll delve into the effects of a dirty fan wheel on your air conditioner and provide valuable insights on maintenance and cleaning techniques by the Best Air Conditioning Installers in Brisbane.

Understanding the Role of an Air Conditioner Fan Wheel:

Before delving into the effects of a dirty fan wheel, let’s first understand its role in the operation of an air conditioner. The fan wheel, also known as the blower wheel, plays a pivotal role in moving air within the indoor unit of your AC system. It facilitates the exchange of heat by circulating air over the evaporator coil, where the refrigerant absorbs heat from the indoor air, thus cooling it before dispersing it back into the room.

How a Fan Wheel Gets Dirty:

In high wall split systems, such as those commonly found in residential settings, the fan wheel accumulates dirt through a process that begins when the air conditioner is in operation. As the fan wheel becomes moist during operation, any airborne particles present in the air adhere to its surface. Over time, this accumulation of dirt creates an ideal environment for the growth of mould, further exacerbating the problem.

Impacts of a Dirty Fan Wheel:

Reduced Airflow:

The most immediate consequence of a dirty fan wheel is a reduction in airflow. As dirt and mould accumulate on the fan wheel, they obstruct the passage of air, diminishing the effectiveness of the cooling process. This can result in uneven cooling and discomfort for occupants.

Increased Power Consumption:

A dirty fan wheel forces the air conditioning system to work harder to achieve the desired level of cooling, leading to increased power consumption. This not only drives up energy costs but also places unnecessary strain on the system’s components.

Water Leaks:

Reduced heat transfer caused by a dirty fan wheel can lead to the formation of ice on the evaporator coil. When this ice melts, it can overwhelm the drainage system, resulting in water leaks that may damage your walls and furnishings.

Increased Wear and Tear:

The added burden placed on the fan motor due to reduced airflow and the additional weight of dirt and mould can accelerate wear and tear, potentially shortening the lifespan of your air conditioning unit.

System Faults:

In severe cases, a dirty fan wheel can disrupt the heat exchange process to the extent that the air conditioner detects a pressure issue and goes into fault mode, rendering it inoperable until the problem is addressed.

Determining When Cleaning is Needed:

You can typically assess the cleanliness of your fan wheel by gently inspecting it behind the front louvres of your air conditioner. Any visible accumulation of dirt or mould indicates the need for cleaning. Factors such as frequency of AC usage and the level of airborne contaminants in your environment also influence the cleaning frequency.

Cleaning Techniques:

There are two primary methods for cleaning a dirty fan wheel:

Strip Clean:

This involves removing the fan wheel from the indoor unit for thorough cleaning. While effective, this method carries the risk of damaging delicate components and is not recommended for routine maintenance.

Hydro Clean:

A preferred method employed by professionals involves partially disassembling the indoor unit to access the fan wheel. A cleaning agent is applied to dissolve dirt and mould, followed by a gentle rinse with low-pressure water to remove debris. This method minimises the risk of damage to the unit while ensuring thorough cleaning.

Experience Cool Comfort with Brisbane's Premier Air Conditioning Installers

air conditioning installers brisbane

Air-Con Brisbane stands out as the premier choice among Brisbane air conditioning installers. With unparalleled expertise and dedication to customer satisfaction, we pride ourselves on delivering top-notch installation services tailored to meet the unique needs of each client. Our team of skilled technicians possesses extensive knowledge of all major air conditioning brands and utilises state-of-the-art techniques to ensure flawless installations every time. 


Whether it’s residential or commercial projects, we strive to exceed expectations by providing efficient, reliable, and cost-effective solutions. When you choose Air-Con Brisbane, you’re choosing excellence in Brisbane air conditioning installation services.


The fan wheel is a critical component of your air conditioning system, and neglecting its maintenance can have significant repercussions on performance and longevity. By understanding the effects of a dirty fan wheel and adopting proactive cleaning measures by the Best Air Conditioning Installers in Brisbane, you can ensure optimal efficiency and comfort from your air conditioner. As the leading air conditioning installers in Brisbane, we’re committed to helping you keep your system in top condition for years to come.