How To Clean Your Air Conditioner


Regular cleaning of your air conditioning unit can increase efficiency and help to maintain good air quality.

Air filters in air conditioners play an important role in catching dust and pollutants in the air, which can be harmful to air quality in the home. Residue can build up in filters creating a damp, moist place for bacteria to build up in the unit. This can impact the air quality of your home.


Check the instructions

First thing to do is check the instruction manual for the particular model and unit.

If you do not currently have the operation manual for your split system, you may still be able to download a copy of the manual from the manufacturers website. You will need the manufacturer and model, which will generally be visible on the outside of the unit. Here is a list of the manufacturer brands we supply:

Daikin – https://www.daikin.com.au/operation-manuals




Cleaning Your Indoor Unit

Air conditioning units that are in high use can quickly pick up particles from the air, which become trapped in the filters leading to inefficiencies and poor air quality. This build up can also lead to higher running costs due to the air conditioner working harder to push the air through the filter.

Generally, split system models have covers that can be easily ‘popped’ open. Remove the filters from the unit (units often have multiple filters so be sure to remove all of them).

Manufacturers recommend that units be cleaned every few weeks, but this can often depend on the time of year and the actual usage of the unit. If the unit is constantly being used then the unit should be cleaned more frequently. Here is a step-by-step guide to cleaning your split system air conditioner:

  1. Ensure your unit is powered off completely
  2. Take the dust filters outside and clean them with a brush or shake to remove the dust and particles
  3. Filters can also be vacuumed to ensure a thorough clean
  4. Depending on the condition of the filters, if they have a build up of dust and grime then you should gently wash the filters in warm water with mild detergent
  5. Clean the units louvers (blades that direct air flow) by wiping them with cloth or using a vacuum. Check that the power on the unit is off. These can only be removed on some units, so check with your manufacturers manual before attempting to remove them
  6. Return the filters to unit once they are completely dry
  7. Close the unit
  8. Switch the power on the check correct operation

Cleaning Your Outdoor Unit

Clear away grass and leaves from the unit to ensure nothing is impeding its operation. Do not open the unit. These units have sensitive and dangerous internal components that should only be clean and serviced by a licensed professional.

You can use a vacuum cleaner to remove excess build up on the air intake.

When Should I Get My Unit Professionally Serviced & Cleaned?

We recommend getting your unit professional serviced and cleaned once a year. Our qualified professionals will complete routine cleaning, along with checking refrigerant gas levels, thermostat tests and ensuring all internal components are working efficiently.

Regular servicing is essential to maintaining your unit and ensuring it continues to work efficiently.

Cleaning Schedule

Every Use

  • Run ‘dry out program’ to remove excess moisture. Refer to manual for instructions


  • Clean dust filters
  • Wipe down unit
  • Clean outside of outdoor unit (do not remove cover to expose internal components


  • Scheduled service by a licensed professional

Schedule A Service

Contact us today to schedule a service: https://www.twinlakesair.com.au/air-conditioner-repairs-central-coast/

Or call us on (02) 4396 9020