All air conditioners have filters that need to be cleaned at least every change of season and we recommend this to be done more often if the air conditioner is being used regularly such as during a hot summer.
If filters are not kept clean the air conditioner will not cool or heat effectively and will be less energy efficient as dirt and dust will be trapped in the filter and block the airflow. Cleaning a dirty and blocked filter can reduce your air conditioner’s energy consumption by anywhere from 5% to 15%.
A blocked filter on a split system in summer can also produce water dripping down the walls as dirt trapped on the filter freezes and then defrosts when the air conditioner is turned off.
The most effective way to clean the filter is to remove the filter from the indoor fan coil of the split system or from the return air grille of the ducted system and either wash the filter with a mild detergent in the laundry sink or take the filter outside and hose it. Leave the filter to dry in the sun and then return the filter back to the split system fan coil or ducted system return air grille.
For the Titanium Apatite Photocatalytic Air Purification Filter in your split systems, vacuum away any dust and then soak the filter in lukewarm water for up to 15 minutes before putting the filter outside to dry in a shaded area.