How to Clean a Ducted Air Conditioner: A Comprehensive Guide for QLD Homeowners

The ducts can accumulate dust, pollen, pet dander, and, most concerningly in Queensland's humidity, mould. This contaminated air is then circulated throughout your home, which can trigger allergies and other respiratory issues.

Clogged air conditioner filters and grimy internal components force your air conditioning system to work much harder to push air through. This strain means it uses more energy, leading to higher energy costs.

When your system is overworked, it puts immense stress on critical components like the fan motor and compressor. This can lead to premature failure and expensive repairs that could have been avoided with regular cleaning.

The build up of mould and bacteria in the damp, dark ducts and drain pan is the primary cause of that persistent musty smell whenever your air con is running.

Go to your home's circuit breaker box and switch off the power to both the indoor and outdoor units of your ducted air conditioning. This is non-negotiable to prevent electric shock and protect the unit from damage.

Your air conditioning unit's manual will have specific instructions for accessing and cleaning components like the filter.

Wear a dust mask, safety glasses, and gloves, especially when dealing with visible dust and potential mould.

Open the hinged grille. The ducted air conditioner filter is typically a mesh or fabric screen that you can easily slide or unclip out.

Take the filter outside to avoid spreading dust inside. Gently tap it to dislodge loose debris. Use a soft brush or a vacuum cleaner with a brush attachment to remove as much visible dust as possible.

Use lukewarm water to wash the filter. You can use a mild detergent if it's particularly greasy. Gently scrub with a soft brush, being careful not to tear the mesh.

Rinse the filter completely to remove all soap residue. Allow it to air dry completely before reinstalling it. A damp filter can quickly become a breeding ground for mould. Never use heat to dry it, as this can damage the material.

Once completely dry, slide the clean filter back into the grille and close it securely.

Some vents can be easily removed by unscrewing them from the ceiling. If you can remove them, it makes for a more thorough clean.

Use a vacuum cleaner with a brush attachment to remove all loose dust and cobwebs from the vent slats.

Use a microfibre cloth dampened with warm water and a mild cleaning solution to wipe down the slats and frame of the vent, removing any remaining grime.

Ensure the vents are completely dry before screwing them back into place.

This is the heart of your ducted air conditioning unit, located in the roof space. We deep clean the fan coil, motor, and drain pan, removing the built-up grime that hinders cooling efficiency and causes water leaks.

We use powerful, specialised equipment to dislodge and remove debris from deep within your air ducts. We then apply an antimicrobial treatment that kills mould and bacteria, ensuring the air is hygienic.

The outdoor unit needs to be free of obstructions to release heat effectively. We clean the coils and fins to ensure your air conditioner is running efficiently.

A professional will check refrigerant levels, electrical connections, and the overall operation of the system to ensure it's at optimal performance.

Enjoy clean air free from harmful mould spores and allergens.

An efficient system uses significantly less electricity to achieve the same level of cooling.

Regular maintenance prevents wear and tear, extending the life of your expensive air conditioning investment.

A clean system delivers stronger, more consistent airflow for ultimate comfort.

Cleaning deep inside air ducts is not a recommended DIY job due to the risk of damaging the duct lining and the need for specialised equipment to effectively remove contaminants. Homeowners can clean the exterior of the vents, but for the ducts themselves, a professional service is required for a safe and thorough clean.

Yes, they absolutely do. Over years of use, ducts accumulate a significant build up of dust, allergens, and moisture, creating an ideal environment for mould. This contamination directly affects your air quality and can make your system less efficient. Professional cleaning every 2-5 years is recommended.

You should clean your ducted air conditioner filter at least once every three months. In dusty environments or homes with pets, cleaning it monthly is best to keep the system running efficiently and protect the internal components from more dust.

Cleaning the inside of a ducted air conditioner, specifically the fan coil unit in the roof space, should be left to a professional. This task involves handling delicate fins, electrical components, and the drainage system. Attempting this without training can lead to costly damage. A professional full service will ensure all internal parts are cleaned correctly and safely.