info@acsm.net.au
By The ACSM Team
Ever wondered what actually happens during an air conditioner service? While the process can vary on a case-to-case basis, it generally includes many of the same tests, checks, and balances.
From the refrigerant to the filters, controls, and electrical connections, we’ll go on to explain what’s included in a service, how often it’s needed, and why it’s a smart move.
As noted by the DCCEEW, heating and cooling systems typically account for between 20% to 50% of the energy used in Australian homes (Source: DCCEEW). When a system is inefficient, out-of-date, or hasn’t been serviced in a while, this can end up costing you quite a lot.
So, how often should you book a service? Once a year is generally a safe bet, however it will also depend on the following factors:
If in doubt, we recommend getting in touch with us and locking in a time to get your air conditioner checked.
When we talk about an air conditioning service, it’s important to note that this may cover a range of different cooling systems.
With that in mind, we’ve compiled a quick guide to what a service includes for the most common units used in Melbourne.
Recommended Timeline: Once a year, ideally in spring before regular summer use.
How it Works: The technician inspects and cleans the indoor and outdoor units, checks the coil, fan and condensate drain, and tests electrical connections, operating temperatures and refrigerant pressures where applicable. The system is then run to check cooling performance, airflow and controls, including Wi-Fi and smartphone functions where fitted.
Typical Service Checks:
Recommended Timeline: Once a year, ideally before the season when the system will be used most heavily.
How it Works: The technician checks the indoor and outdoor units, filters, accessible ductwork and zones before testing the system in heating and cooling modes. Electrical components, airflow, temperature, refrigerant pressures and controls are checked, including thermostats, touchscreens, Wi-Fi, smart-home connectivity and AI functions where fitted.
Typical Service Checks:
Recommended Timeline: Once a year, ideally in early spring before summer use. Portable units may require more regular cleaning between services.
How it Works: For ducted systems, the technician checks and cleans the cooling pads, water system, fan and motor before testing water distribution, drainage, airflow and ductwork. Portable units are checked through their tank, pump, pads, fan and electrical components. Digital, Wi-Fi and smart controls are also tested where fitted.
Typical Service Checks:
An air-conditioning service generally covers maintenance, testing, repair and commissioning. As noted by RACV, it is always best to leave this job to a qualified professional.
Look for HVAC technicians that are accredited with:
Victorian Building Authority (VBA): Check that the technician has the appropriate Victorian registration or licence for the type of air-conditioning work they perform.
Australian Refrigeration Council (ARC): An ARCtick Refrigerant Handling Licence is required for work involving refrigerants. Different licence types apply to different types of air-conditioning work.
Energy Safe Victoria: Electrical and gas work associated with heating and cooling systems may require the appropriate Victorian electrical or gas licensing.
AMCA Australia: Membership or accreditation with the Air Conditioning and Mechanical Contractors’ Association can provide another indication that a contractor operates within recognised industry standards.
The key point to note is that not every person who can clean an air conditioner’s filter is qualified to carry out every type of repair or service. If the work involves a refrigerant, electrical components or regulated air-conditioning systems, check that the technician holds the specific licence required for the job.
Yes. Electrical checks are part of a standard air conditioning service, rather than an optional extra. In Victoria, practitioners registered for refrigerated air conditioning work must hold the relevant restricted electrical licence alongside their trade qualification.
This allows them to locate and rectify faults in motors and controls, work on low-voltage components and disconnect and reconnect appliances where required.
During a service, this can include checking electrical terminals and connections, inspecting capacitors and contactors for signs of heat damage, and measuring running current against the manufacturer’s specifications.
These checks matter because loose or damaged electrical connections can create excess heat, cause arcing and eventually lead to component failure.
Other than general guidelines or manufacturer warranty, there are other signs that will let you know it’s time to call in the pros.
These might include:
Still unsure? Give our friendly team a call and we’ll arrange a time to come and check your air con system out.
To put it simply, there is no better choice for HVAC service, repair, or new construction contracting than the team at ACSM. Our highly skilled team can handle any aspect of air conditioning. Whether you’re a head contractor managing new construction, a homeowner requiring service or replacement of an existing unit, or you’re in need of commercial service and maintenance, we’ve got your back.
We work meticulously with clients just like you to provide the best service, the highest standards, and great value for money. At ACSM, our goal is not simply to install or repair an air conditioner, but to deliver and exceed your expectations.
Yes, it usually will. Because a ducted system has ductwork, thermostats, return-air filters, grilles, and zone motors, a service is naturally more complicated. If you need further information about the process, don’t hesitate to contact our team today.
Filters, and almost nothing else. Cleaning the dust filters every few weeks is ideal, and twice a year is the floor; take them outside, shake them out, and wash them in warm soapy water if they are grimy, then dry them completely before refitting.
Do you need a licence to service an air conditioner in Victoria?
Yes, for the sealed system. A Refrigerant Handling Licence is required to service or maintain air conditioning equipment, and handling regulated refrigerant without one is an offence. Victoria adds a second requirement: registration in refrigerated air-conditioning work also requires a restricted electrical workers licence.
Can skipping a service void the manufacturer’s warranty?
It can, but the specific terms and guidelines vary from manufacturer to manufacturer. To find this information, it’s usually best to check the warranty and the product manual, or search for your make and model online.
