The Complete AC Tune-Up Checklist for Homeowners 

As the temperature climbs across the country, having a reliable air conditioning system is not just a comfort, it’s a necessity. Whether you’re for another hot summer or simply want to extend the lifespan of your cooling unit, a proper AC tune-up can make all the difference. Here’s a complete AC tune-up checklist for homeowners. We’ll cover everything from filter changes to professional inspections, helping you keep your system efficient, clean and ready for the season ahead.

Why Regular AC Maintenance Matters

Air conditioners are hardworking machines, especially during Melbourne’s scorching summers. Like any major appliance, they need regular care to run at their best.

Here’s what regular AC tune-ups can help you achieve:

• Reduce energy bills by improving efficiency
  
• Avoid breakdowns during the peak of summer
  
• Improve indoor air quality by eliminating dust and mould
  
• Extend the lifespan of your air conditioning system
  
• Detect minor issues early before they become expensive problems
  

Skipping maintenance often leads to underperformance, sudden breakdowns and higher electricity costs. That’s why this checklist is not just handy, it’s essential.

The Complete AC Tune-Up Checklist for Homeowners

1. Clean or Replace Air Filters

Your AC’s air filters trap dust, pollen, and other airborne particles. Over time, they get clogged, restricting airflow and forcing your system to work harder.

Frequency: Check monthly during heavy use and replace every 2–3 months, or as recommended by the manufacturer.

Pro Tip: Homes with pets or allergy sufferers should replace filters more frequently.

2. Clear Debris Around Outdoor Unit

Leaves, sticks, dirt and other garden debris can block your outdoor unit’s airflow. This makes your system inefficient and can even cause overheating.

What to Do:

• Keep a 60cm clearance around the unit
  
• Gently wash off dust and build-up using a hose (with the power off)

3. Inspect and Clean Air Vents

Blocked or dusty vents reduce airflow and comfort. It also means your system works harder than it needs to.

What to Check:

• Ensure vents are open and not blocked by furniture
  
• Wipe down vents to remove dust build-up
  
• Vacuum inside where accessible

4. Check Thermostat Functionality

Your thermostat is the control centre of your AC. If it’s not working properly, neither will your system.

Actions:

• Replace batteries if needed
  
• Test the temperature accuracy
  
• Consider upgrading to a smart thermostat for energy savings

5. Inspect the Condensate Drain

Air conditioners remove moisture from the air, and that moisture needs somewhere to go. If the drain is clogged, it can cause leaks, water damage or even mould.

Look For:

• Water pooling around the indoor unit
  
• Musty smells indicating mould
  
• Algae or mildew in the drain line
  

6. Check Refrigerant Levels

Low refrigerant means your system won’t cool properly, and may damage the compressor. This isn’t a DIY job, so if you suspect an issue, call a licensed technician.

Signs of Low Refrigerant:

• Warm air blowing from vents
  
• Ice forming on the refrigerant lines
  
• Unusually high energy bills
  

7. Listen for Unusual Noises

Rattling, buzzing, or squealing noises often signal loose parts, worn-out belts or motor issues. Don’t ignore these warning signs. They can lead to system failure.

8. Test Airflow and Performance

Turn on your system and check each room for consistent airflow. Poor airflow could mean duct leaks, dirty filters or a failing blower motor.

9. Schedule a Professional AC Service

Some components, like refrigerant levels, electrical connections and internal coil cleaning, should be handled by certified HVAC technicians.

At Tailored Heating and Cooling, our professional tune-ups include:

• Full system inspection
  
• Filter check and replacement
  
• Outdoor and indoor coil cleaning
  
• Airflow testing
  
• Thermostat calibration
  
• Drainage and refrigerant check
  

Our licensed team ensures your AC is safe, efficient and ready for the months ahead.

When to Tune-Up Your AC 

The best time for an AC tune-up is early spring, before the full force of summer hits. That way, your system is clean, tested and ready to keep you cool when you need it most.

But if it’s already summer, don’t stress. It’s never too late to tune up and optimise your system.

Should I DIY or Call a Pro?

While you can tackle some tasks like changing filters or cleaning vents, a professional technician will go deeper. Annual servicing ensures all parts are tested, cleaned and running at full capacity, which can save you hundreds over time.

If your system is older or hasn’t been serviced in over a year, it’s best to schedule a full inspection.

The Tailored Difference

At Tailored Heating and Cooling, we don’t just install air conditioners. We make sure they keep working at their best. Our certified technicians are experts in split systems, ducted AC, multi-head setups and evaporative cooling, providing prompt and professional service across Melbourne.

We tailor every solution to your space and budget, because comfort shouldn’t be one-size-fits-all.

Ready to Book Your AC Tune-Up?

Don’t wait until your AC breaks down in the middle of a heatwave. Let us help you stay cool, save on energy, and extend the life of your system.

Book your professional AC tune-up with Tailored Heating and Cooling today. Contact us or call our team at +1800 800 731.

Your AC works hard. Give it the care it deserves. This checklist helps you cover the basics, but partnering with a trusted HVAC professional ensures long-term performance, safety and peace of mind.

At Tailored Heating and Cooling, we’re not just about air, we’re about advice, efficiency and solutions that fit.