A well-maintained ducted system in Sydney should last 15–20 years. A neglected one might fail in 7–10 years. Here’s what determines lifespan and how to get the most from yours.
Average Lifespan by System Type
- Quality ducted systems (Daikin, Mitsubishi, ActronAir): 15–20 years with annual servicing
- Budget ducted systems: 10–12 years
- Split systems: 12–15 years well-maintained
What Kills a System Early
- Never servicing the filters — blocks airflow, strains the compressor
- Running with low refrigerant — causes compressor overheating
- Ignoring small faults — they become expensive failures
- Poor original installation — incorrect sizing or shoddy refrigerant work
Signs Your System Is Near End of Life
- Frequent breakdowns in the same season
- Repair costs approaching 50% of a new system
- Compressor has been replaced once already
- R22 refrigerant (now banned — means the system is 15+ years old)
If your system is over 12 years old and struggling, it may be more cost-effective to replace rather than repair. Call Jim on 0416 931 871 for an honest assessment.