Your air conditioner works hard through a South West summer, and it’s one of the biggest investments in your home. A little care goes a long way. Regular air conditioner maintenance is essential for extending your system’s lifespan, keeping it cooling efficiently, and keeping running costs down.
Here’s what our Busselton Air technicians recommend to keep your air conditioning unit running at maximum efficiency for years to come.
Air Conditioner Lifespan: How Long Do Air Conditioners Last?
Many residential split and ducted reverse-cycle air conditioners last around 10 to 15 years, with some lasting longer. That average lifespan isn’t guaranteed, though. An older air conditioning unit that has missed regular maintenance will often wear out years earlier.
So how long does a split system last in the South West? It depends on a few things:
- Maintenance: Clean air filters and annual professional inspections keep AC components in good shape.
- Sizing: An undersized system might struggle during peak conditions, while an oversized system might cycle frequently when demand falls below its minimum output. Correct sizing supports efficient, reliable operation.
- Usage: A system used for both heating and cooling year-round clocks up more running hours.
- Environment: Coastal salt air, sand and leaf litter are tough on the outdoor unit.
Most of these factors lie within your control, which is where the tips below come in.
Air Conditioner Maintenance Starts With Clean Air Filters
Dirty filters are one of the most common things that make your air conditioner work harder than it should. When dust and pet hair clog the air filters, airflow drops, the fan strains and your AC unit takes longer to reach the desired temperature. That extra effort wears out the whole system and pushes up your energy bills.
To clean your filters:
- Turn the air conditioner off with the remote, then switch it off at the isolator.
- Lift the front panel of the indoor unit and slide out the filters.
- Vacuum them, or rinse them in lukewarm water.
- Let them dry completely in the shade before refitting.
During summer, check the filters every two to four weeks. If you have pets, live near a gravel road or run your system every day, check them more often. It’s a five-minute job that protects your indoor air and the life of your system.
Look After the Outdoor Unit of Your Air Conditioning System
Your outdoor unit houses the compressor and the condenser coils, which release the heat taken from your home during cooling. If those coils are blocked or corroded, the system can’t shed heat properly, and you’ll notice warm air or weak cooling on the hottest days.
If you live near the coast in Busselton or Dunsborough, salt air speeds up corrosion. Further inland, dust, sand and leaf litter are the usual culprits. A few simple habits help:
- Keep the area around the unit clear. Trim back shrubs, grass and vines, and check your manual for the recommended clearance.
- Remove leaves, cobwebs and debris from the fins and base, especially after storms.
- Don’t store bikes, bins or garden gear against the unit.
- Shade helps, but never box the unit in. It needs good airflow to work.
Caring for your indoor and outdoor units together means fewer frequent repairs and a longer air conditioner lifespan.
Smart Settings That Stop Your AC Unit Working Harder
How you use your air conditioner matters as much as how you maintain it. Setting the temperature too low makes the AC unit run longer, which adds wear and drives up electricity bills.
- Set a sensible temperature. For cooling, 24 to 25°C suits most homes. For heating, 18 to 20°C does the job. Lower cooling settings and higher heating settings increase energy use.
- Close up the house. Shut windows, doors and blinds so cool air stays in.
- Let it hold a steady temperature. Modern air conditioners with inverter technology are most efficient when they hold your desired temperature, rather than being blasted at 16°C and switched off.
- Use dry mode on humid days. It removes excess moisture without overcooling the room.
- Use timers and zoning. Pre-cool the house before you get home and only condition the rooms you’re using. An iZone controller makes this easy on ducted systems.
These small habits help you save money, soften rising energy costs and reduce the strain on every part of your cooling system.
Book an Annual Air Conditioner Service
Even with clean filters, some jobs need a qualified technician. Like any HVAC system (heating, ventilation and air conditioning), your AC system has moving parts, electrics and refrigerant that need checking. An annual air conditioner service catches small faults before they turn into a major repair.
Spring is the ideal time to book, before the first heatwave arrives. You don’t want to face a South West summer without a working air conditioner. Our fully qualified in-house technicians service all major brands, and as a Daikin Super Dealer, we know these systems inside and out.
Warning Signs Your Air Conditioner Needs Attention
Acting early on warning signs is one of the best ways to avoid expensive repairs. Call a technician if you notice:
- Warm air instead of cold air coming from the indoor unit
- Weak airflow, even with clean filters
- Strange noises, such as grinding, rattling, squealing or banging
- Inconsistent cooling, or inconsistent temperatures from room to room
- Water dripping or pooling around the indoor unit
- Ice on the pipes or coils
- Musty smells, which can point to mould growth
- A sudden jump in energy bills with no change in how you use the system
Unusual noises and poor cooling are often early signs of a failing fan motor, a refrigerant leak or a blocked coil. Fixing them quickly protects the rest of your air conditioner.
Air Conditioning Repairs or Air Conditioner Replacement?
Sometimes a repair is the smart choice. Other times, putting more money into an old AC unit only delays the inevitable. It may be time to replace your air conditioner if:
- It’s more than 10 to 15 years old and frequently breaks down
- Total repair costs are approaching half the price of a new unit
- Replacement parts are hard to find or expensive
- It runs on an older, phased-out refrigerant
- Your electricity bills keep climbing, even after a service
Keep Your Air Conditioner Running for Years
A longer air conditioner lifespan comes down to a few simple habits: clean filters, a clear outdoor unit, sensible settings and a professional service every year. Put them together, and you’ll enjoy cool air in summer, reliable warmth in winter and lower energy bills all year round.
After the sale, it’s the service that counts. To book an air conditioner service anywhere in Busselton, Bunbury, Dunsborough, Margaret River, Capel or the wider South West, call our friendly team on (08) 9752 4246 or book your service online today!