General Home Maintenance · Safety
Clean a Split-System Air Con Filter
Repair summary
Open the front panel of the indoor unit, slide the mesh filters out, vacuum then rinse under warm water, dry fully and refit. Do this every 3 months — clean filters save up to 15% on running costs.
Likely issue
Dust-clogged intake filter
DIY difficulty
1/5
Estimated DIY cost
$0
Estimated tradie cost
$180–$320 (service)
Tools required
- Vacuum with brush attachment
- Sink
Materials required
No additional materials needed.
Step-by-step instructions
- Switch off at the wall and gently lift the front cover.
- Open the front panel of the indoor unit, slide the mesh filters out, vacuum then rinse under warm water, dry fully and refit. Do this every 3 months — clean filters save up to 15% on running costs.
Safety warnings
Switch the unit off at the wall before opening. Anything deeper than the filters (coils, gas, electrics) is licensed refrigeration/HVAC work.
When to call a tradie
Call a licensed tradie if the work is outside the scope of this guide, involves regulated trades (electrical, gas, structural, waterproofing), or if you discover hidden damage. A professional will typically charge $180–$320 (service).
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