technician fixing common air conditioning problem

Common Summer Air Conditioning Problems and Their Solutions for Aussie Homeowners

Have you ever sat in front of your AC unit and wondered why it suddenly stopped cooling even though it worked fine last summer? Well, wonder no more! Seasonal AC maintenance is essential to ensuring that your system is up-to-date with its latest features and functionalities while helping to ensure that any potential problems or issues can be quickly identified and addressed. 

By taking the time to service your air conditioner regularly, you will get more reliable performance throughout the summer months and save yourself money in energy efficiency and repair costs. Keep reading to discover why seasonal ac maintenance matters for homeowners.

1. Frozen Evaporator Coils: The Icy Dilemma

In an Aussie summer, high humidity levels can exacerbate frozen coil issues due to increased moisture in the air. Ensure proper airflow and regular filter changes to combat frozen coils, ensuring a cooler and more efficient summer cooling experience.


  • Poor cooling and airflow from the AC vents.
  • Noticeable ice buildup on the evaporator coils.


  • Check and ensure proper airflow by inspecting vents, registers, and air filters. Replace or clean filters if dirty or clogged.
  • Insufficient airflow can lead to condensation on the coils, causing them to freeze. Adequate airflow is key to preventing frozen coils.
  • Schedule professional maintenance to clean the coils, check for refrigerant leaks, and ensure the system operates optimally.

2. Refrigerant Leaks: Losing Coolant, Losing Cool

Summer heat intensifies the workload on AC systems. Leaks can strain the system, causing inadequate cooling and increased energy consumption. Regular inspections and timely repairs maintain proper refrigerant levels, ensuring efficient cooling during the hotter months.


  • Inadequate cooling despite the AC running continuously.
  • Hissing sounds or bubbling noises coming from the AC unit.
  • Ice buildup on the refrigerant lines or coils.


  • Promptly engage a professional HVAC technician to inspect the system for refrigerant leaks.
  • Fix any identified leaks and replenish refrigerant levels to ensure proper cooling efficiency.
  • Qualified professionals should perform refrigerant recharge according to manufacturer specifications.

3. Faulty Capacitors: Powering Down

The added stress of continuous operation during summer can expedite capacitor wear. Ensuring the capacitors are in top condition prevents unexpected breakdowns and ensures uninterrupted cooling during the hotter days.


  • The AC unit is failing to start or experiencing intermittent cooling issues.
  • Audible clicking noises from the AC unit during startup attempts.


  • Capacitors store and supply electrical energy to start the compressor and fan motors. If faulty, a professional technician should replace the capacitors.
  • Professional inspection and replacement of capacitors are vital for proper functioning and avoiding potential damage to other AC components.

4. Clogged Drain Lines: Drip Dilemma

During summer, increased condensation occurs due to higher humidity levels, increasing the likelihood of drain line clogs. Regular cleaning and maintenance prevent water backups and maintain a dry, comfortable indoor environment.


  • Water pooling around the AC unit or beneath it.
  • Higher indoor humidity levels or musty odours indicate moisture issues.


  • Clear drain lines using vinegar and water or professional cleaning solutions.
  • Regularly inspect and clean drain lines to prevent blockages caused by algae, mould, or debris buildup.

5. Thermostat Problems: Setting Miseries Straight

Accurate thermostat function is vital for maintaining desired indoor temperatures in an Aussie summer Addressing thermostat issues ensures accurate settings, enabling efficient cooling and optimal comfort during the warmer months.


  • Inaccurate temperature readings are displayed on the thermostat.
  • The AC system is not responding to temperature adjustments.


  • Calibrate the thermostat or replace the batteries if necessary.
  • Upgrade to a programmable or smart thermostat for enhanced control and accuracy.

There you have it, folks – a guide to troubleshooting and resolving common air conditioning troubles during the hot summer months. By identifying these problems early and applying the suggested solutions, you can ensure that your AC, with the expert assistance of Accustom Air, keeps you comfortably cool throughout the season without hiccups! Trust Accustom Air to address any AC issue promptly and keep your cooling experience smooth and hassle-free.