Perth is already well into another long, hot summer, and air conditioners across the city are working hard every day. By this point in the season, systems that were already under strain often start showing problems.
This guide shares practical Perth aircon tips for summer 2026. It focuses on keeping your system cooling properly through the rest of summer, reducing electrical issues, and avoiding breakdowns during ongoing heatwaves.
Tip #1: Check your aircon now, not after it stops working
By January, we see a surge in call-outs for air conditioners that have finally given up under constant use.
If you have not already checked your system this summer, it is still worth doing now.
What to check:
- Make sure the system is cooling properly on hot days
- Check airflow from indoor units
- Listen for new or unusual noises
- Watch for power trips or sudden shutdowns
Catching issues early in the season reduces the risk of total failure during the hottest days.
Tip #2: Know whether your split system is coping with the heat
Split system air conditioners often reveal sizing or installation issues during prolonged heat, not mild weather.
Common problems we see mid-summer include:
- Systems that cannot keep rooms cool during heatwaves
- Units running constantly without reaching temperature
- Outdoor units overheating due to poor airflow
- Electrical circuits struggling under continuous load
Why this matters
An undersized or poorly installed split system works harder in extreme heat, which shortens its lifespan and increases the chance of breakdown.
If your system has struggled so far this summer, it may be a sign that an upgrade or correction is needed.
Tip #3: Use reverse cycle aircons efficiently in peak summer
Reverse cycle air conditioners run year-round, so by January they have often had months of continuous use.
Simple adjustments that help during peak summer:
- Set temperatures between 23 and 25 degrees
- Avoid dropping the temperature too low
- Allow the system time to cool gradually
- Use zoning or isolate rooms where possible
Why this matters
Lower settings do not cool your home faster. They increase electrical load and place extra stress on components that are already working hard in summer conditions.
Tip #4: Servicing still matters, even mid-summer
Many homeowners assume servicing is only useful before summer starts. In reality, servicing during summer can prevent a failing system from completely stopping.
What servicing helps address:
- Filters blocked by dust and debris
- Electrical connections loosening from heat and vibration
- Components overheating under constant load
- Reduced cooling performance
What you can do yourself:
- Clean or replace filters every 1 to 2 months
- Keep outdoor units clear of leaves and debris
- Pay attention to changes in performance
Why professional servicing helps
Most aircon failures start small. Servicing during summer can catch these issues before they turn into a full shutdown during a heatwave.
Tip #5: Reduce electrical strain during ongoing heatwaves
By January, many homes are already pushing their electrical systems hard.
Simple ways to reduce strain:
- Avoid running multiple high-load appliances at once
- Use blinds and curtains to limit heat gain
- Reduce oven and dryer use during the hottest hours
- Make sure your switchboard is coping with aircon demand
Why this matters
Electrical overload is a common cause of aircon shutdowns, tripped circuits, and overheated cabling during prolonged heat.
Signs your aircon needs professional attention
You should contact a licensed electrician if:
- The aircon trips power or shuts down unexpectedly
- Cooling feels weak or inconsistent
- The system struggles during hot afternoons
- The unit is more than 8 to 10 years old
- You are considering an upgrade or additional system
Ignoring these signs often leads to failure at the worst possible time.
Keep your aircon reliable for the rest of summer 2026
Summer is far from over, and your air conditioner still has months of hard work ahead.
We help Perth homeowners with:
- Split system aircon supply and installation
- Split system servicing and repairs
- Electrical checks to support aircon load
Every service includes upfront pricing and a free electrical safety inspection.
Contact us today to keep your aircon running reliably through the rest of summer.
