As the mercury soars and heatwaves become a more common occurrence across our sunburnt country, many of us seek refuge in the cool sanctuary provided by air conditioning. While the hum of a well-functioning AC unit can be music to our ears, it's crucial to remember that these systems require regular maintenance to keep them running smoothly and to ensure the air we breathe is clean and healthy.


Ducted air conditioning systems, in particular, can be out of sight and out of mind, leading to neglect in their upkeep. However, failing to clean and maintain these systems can not only lead to decreased efficiency and higher energy bills but also pose significant health risks.


Why Cleaning Your Ducted System is Essential

Shannon Lush, a Sydney-based household cleaning expert, warns that ducted units often don't receive the same attention as split systems. This oversight can be detrimental to your health. 'If your filter clogs up in a split system, it stops working, prompting immediate action. But with ducted systems, the larger filters can handle more before they fail, so people tend to ignore them,' Lush explains.


Thomas Russell, an air-conditioning and refrigeration teacher from Melbourne's Box Hill Institute, echoes this sentiment, stressing that a lack of maintenance can lead to inefficient operation and potential breakdowns. The consequences? Unnecessary wear on your system and a spike in your power bills.

How Often Should You Clean Your Ducted Aircon?

The frequency of cleaning your ducted air conditioning should be dictated by what you can see and smell. 'If there's a noticeable odor or you can see dust emanating from the ducts, it's a clear sign that your system isn't filtering properly,' says Lush. Chris Barnes from Choice, a consumer advocacy group, adds that environments with more dust will naturally lead to quicker build-up in filters, affecting your indoor air quality and cleanliness.


DIY Cleaning Tips for Your Ducted Air Conditioner

Fortunately, there are components of your ducted system that you can clean yourself. If you notice dust on your vents and ducts, Barnes recommends a thorough vacuuming followed by a wipe-down with a soft, dry cloth. Lush suggests focusing on visible areas and movable vents, using a homemade solution of lavender oil and water (one teaspoon per litre) for wiping surfaces. Surprisingly, she recommends pantyhose over micro-fibre cloths for their superior reach and cost-effectiveness.

The return air filter is another critical component that requires regular cleaning. 'The main filter pad in the machine is more important than the vents,' Lush advises. 'Simply wash them in warm, soapy water, let them dry in the sun, and then reinsert them.' Always consult your system's manual for specific instructions on locating and removing filters.


When to Call in the Professionals

While DIY cleaning is important, it's not a replacement for professional servicing. Russell recommends a yearly maintenance check, which should include cleaning filters or pads, ducts, and registers. The cost of servicing varies, so it's wise to shop around for quotes.

Regular professional maintenance ensures your system operates at peak efficiency and helps identify potential issues before they escalate into costly repairs. 'Treat your air conditioning like your car,' Lush advises. 'You wouldn't skip your car's annual service, and your air conditioning system should be no different.'
In conclusion, maintaining your ducted air conditioning is not just about comfort; it's about health and efficiency. By staying vigilant with both home cleaning and professional servicing, you can breathe easier knowing that your system is in top shape. So, take a moment to consider when you last attended to your AC unit – it might just be time for a clean sweep!