Spring is the right time to check your air conditioner before Sydney’s warmer weather arrives. After working less during winter, your system may have accumulated dust, developed airflow issues or simply need a professional service before it is relied on heavily through summer.

A few simple checks now can help identify potential problems early and give you time to organise repairs or maintenance before the first run of hot days.

1. Clean and Check Your Air Conditioner Filters

Start with the filters. A blocked filter restricts airflow and makes the system work harder.

Remove the accessible filters and clean them according to the manufacturer’s instructions. Let washable filters dry completely before reinstalling them.

If the filters are heavily clogged, damaged or difficult to remove, have a technician inspect them rather than forcing anything.

 

Clean and Check Your Air Conditioner Filters

2. Inspect the Indoor Air Conditioning Unit

Turn the system on and pay attention to what it is doing.

Is the airflow strong? Is the air coming out cool? Do you notice a musty smell, rattling, buzzing or unusual vibration?

Also look around the indoor unit for signs of moisture or water.

A small amount of condensation can be normal during cooling, but water appearing where it shouldn’t is worth investigating. A blocked condensate drain, dirty coil or drainage problem can cause an indoor unit to leak.

3. Check the Outdoor Unit

Walk outside and have a look at the condenser.

Sydney homes can collect plenty of leaves, dust, grass clippings and vegetation around outdoor units, particularly after winter. Clear loose debris and make sure plants or stored items aren’t restricting airflow around the unit.

Don’t remove panels or attempt to work inside the outdoor unit. Electrical and refrigeration components should be left to a qualified technician.

4. Test Your Air Conditioner Before Summer

Don’t wait for a 35°C day to discover your air conditioner isn’t working properly.

Run the system for long enough to check:

  • Cooling performance
  • Airflow from the vents
  • Starting and stopping
  • Unusual noises
  • Unusual smells
  • Any error codes
  • Water leaks

If the system runs continuously but struggles to cool the home, don’t simply keep lowering the thermostat. There may be an underlying airflow, refrigerant, electrical or equipment problem that needs professional diagnosis.

5. Check for Water Leaks and Drainage Problems

Air conditioners produce condensation when operating in cooling mode. That water needs to drain correctly.

If you see water dripping from the indoor unit, staining around the wall or ceiling, or water pooling where it shouldn’t, switch the system off and arrange an inspection.

Don’t assume a leaking air conditioner will fix itself.

6. Check Your Thermostat and Controls

Check that your remote, wall controller or smart control is responding correctly.

For ducted systems, check your scheduled settings and zones as well. A forgotten schedule or incorrectly configured zone can sometimes look like an equipment fault.

7. Check Your Ducted & Split Air Conditioning System

If you have split & ducted air conditioning system, check every room rather than only the main living area.

Open the vents and compare the airflow. If one bedroom is noticeably weaker than another, or some rooms aren’t cooling properly, there may be an airflow, zoning or ductwork issue.

For larger ducted systems, professional servicing is worthwhile before summer. You can contact us and more about our ducted air conditioning services.

Inspect the Indoor Air Conditioning Unit

8. Watch for These Warning Signs

Before summer, take action if you notice:

  • Weak airflow
  • Warm air from the system
  • Strange noises
  • Musty or unusual smells
  • Water leaks
  • Frequent on-and-off cycling
  • Uneven cooling
  • Increasing power bills without a clear reason

These aren’t problems I’d recommend ignoring until summer.

9. Should You Repair or Replace Your Air Conditioner?

Age alone doesn’t mean an air conditioner needs replacing.

I normally look at the system’s age, condition, repair history, performance and operating costs. A relatively sound system with a minor fault may be worth repairing. An older system requiring repeated repairs may deserve a replacement assessment.

Book Your Air Conditioning Service Before Summer

Our professional service can go beyond what you can safely check yourself. Our technician can assess system operation, airflow, coils, drainage and other components and identify faults that aren’t obvious during a basic home inspection.

We recommends spring maintenance before increased Sydney cooling demand. 

When Should You Call an Air Conditioning Professional?

If your air conditioner isn’t cooling properly, is leaking, making unusual noises, repeatedly cycling or showing an error, call us at 1800212308 rather than continuing to run it.

Homeowners can handle basic cleaning and visual checks, but electrical work, refrigerant work and internal repairs should be left to appropriately licensed professionals.

If your Sydney air conditioner needs a professional inspection or service before summer, contact Radi Air to arrange an assessment.