Top Signs Your AC Needs a Check-Up Before Melbourne’s Summer Hits

As the mercury begins its upward climb, your air conditioning system becomes a vital tool to ensure your home remains a sanctuary of cool and calm. 

This makes it the perfect time to ensure your AC is in peak condition, ready to offer respite when the temperatures soar. 

In this blog post, we’ll walk you through the warning signs of a failing AC system and why regular maintenance is crucial.

Understanding Your AC System

Before delving into the signs of a failing AC, it’s imperative to grasp a basic understanding of how the system operates. An air conditioner works by moving a refrigerant between two coils, absorbing heat from indoors and releasing it outside through the outdoor unit.

This cycle, complemented by fans and controls, ensures a cool, comfortable indoor environment. Regular maintenance ensures that all components function efficiently, offering optimum performance.

The Importance of Regular Maintenance

How Often Should it be Done?

Maintenance Task

Recommended Frequency

Filter Replacement

Every 1-3 months

Coil Cleaning


Overall System Check-Up

At least once a year

Refrigerant Level Check


Regular maintenance is pivotal in upholding the efficiency and longevity of your AC system. At the core of this process is the frequency of check-ups, primarily guided by the manufacturer’s recommendations and the system’s age and usage levels. 

Generally, a comprehensive check-up at least once a year is ideal. This preventative approach serves to identify and rectify potential issues before they escalate into costly repairs or replacements.

Benefits of Regular Maintenance

  • Enhanced Efficiency: Regular servicing ensures that all parts of the AC system are functioning correctly, helping to maintain optimal efficiency levels. For instance, clean filters allow better airflow, reducing the energy required to cool your space.
  • Prolonged Lifespan: Like any machine, an AC’s life span can be substantially extended through regular maintenance. It helps prevent wear and tear, ensuring the system serves you for many summers to come.
  • Avoiding Major Repairs: Regular check-ups can identify small issues before they become significant problems. Early repairs are often less complex and cheaper, saving you from hefty bills in the long run.

Recognizing the Early Signs of a Failing AC

Understanding the early warning signs can save you from a sudden breakdown during the scorching summer days. Here are some common signs that your AC might be due for a service:

  • Unusual Noises
    • Grinding: Indicates a problem with the motor bearings.
    • Hissing: Could suggest a refrigerant leak.
    • Banging: Often a sign of a loose or broken part.
  • Inconsistent Cooling
    • Uneven Temperatures: May indicate blocked vents or a failing compressor.
    • Long Time to Cool: Can be a sign of a low refrigerant level or a problem with the coils.
  • Increased Energy Bills
    • Reduced Efficiency: Over time, neglect can lead to a slow but steady increase in your energy bills.
    • How Servicing Can Help: A service check can identify areas where the system is losing efficiency and suggest remedial actions, possibly helping to lower your energy costs.
  • Frequent Cycling
    • What it Means: Your AC should cycle more frequently on hotter days, but if it’s happening even when the weather is mild, it could be a sign of an issue.
    • Potential Underlying Issues: This might indicate a problem with the thermostat or a refrigerant leak.
  • Unpleasant Smells
    • Causes: Mould, mildew, or bacterial growth can cause unpleasant odours.
    • Health Implications: Prolonged exposure to these smells can potentially lead to respiratory issues or other health problems.

The Consequences of Ignoring Early Signs

Ignoring the early signs of a failing AC can have a domino effect, leading to more significant issues, higher costs, and potential health risks. 

Early intervention can prevent the inconvenience of dealing with a malfunctioning AC in the peak of summer, ensuring uninterrupted comfort and peace of mind.


As summer approaches, being proactive about your AC maintenance can be a game-changer. Recognising the early signs of a failing system and understanding the importance of regular check-ups can save you time, money, and the discomfort of a hot, sticky home. 

Don’t get caught in the summer rush. Trust Gaschill’s expertise to help you prepare for the warmer months ahead. Learn about our split system installation services and take the first step to ensuring that your AC is good to go for summer.