Last Updated on 4th January 2017

Regular maintenance of an air conditioner enables the unit to function efficiently and effectively and adds years to its life. Here are some easy, simple steps can keep your air conditioner in good working order, increase energy efficiency, and improve the quality of air inside your home.


Cleaning the filters of your air conditioner routinely is perhaps the most essential maintenance task you can perform. Dirty, clogged filters block the normal airflow reducing the air conditioner’s efficiency. When airflow is obstructed, the air that flows through the air conditioner may carry the dirt onto the evaporator coil and restrict the coil’s heat absorbing capacity. Cleaning or replacing the filter would lower energy consumption by 5-15%. If you have furry pets or live in dusty conditions and your air conditioner is in constant use, then you may need to clean the filter quite frequently.


The coils of the air conditioner gather dirt over time and its ability to absorb heat is reduced. To avoid this, check the evaporator coil every year and clean as required. Out condenser coils become dusty and you can see dirt on the fins. Keep the surrounding of the unit free of debris and dirt, and trim foliage back at least 2 ft for adequate air flow.

Do not try to fix any problems yourself and hire professionals like Snowdonia Air Conditioning Brisbane, to carry out repairs and more intensive maintenance.

Coil fins

The aluminum fins can be easily bent and block airflow through the coil. A “fin comb” can comb these fins into almost their original shape.

Drain channels

Passing a stiff wire through the unit’s drain channels will clean clogged drain channels. Clogged drains prevent an AC unit from reducing humidity and the excess moisture may discolour your carpet or walls.

Sealing windows

At the start of the season, check that there are no gaps between the air conditioner and the window frame letting cool air escape out of the room. Seal any gaps to keep cool air trapped inside the room.

Preparing for the winter

In winter, the air conditioner should be kept covered or removed and put in storage to protect it from winter debris and weather.

With these tips, basic maintenance of your air conditioner is quite easy and will keep your air conditioner in great working order, allowing for less energy consumption and better cooling.

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