A clean air conditioner runs more efficiently, costs less to run, lasts longer and puts out healthier air. A neglected one loses cooling, drives up your power bill, and on the Sunshine Coast, quietly grows mould in the humidity. Regular servicing & cleaning keeps your home comfortable, your running costs low, your system’s lifespan long, and your air quality in check.
This article covers why cleaning and servicing matters, how to safely clean the filters and units, how often to do it, what to avoid, and when it’s time to call a professional. Follow your own unit’s manual, because models differ and if you’re uncertain, give Artic Aircon a call.
Why Regular Aircon Maintenance Matters
Dust is the enemy of an air conditioner. As filters and coils clog up, airflow drops, the system works harder for less cooling, and your running costs climb. A clean system does its job with less effort, which is better for both your comfort and your power bill.
There is a health side too. The air your unit pushes around is the air you breathe, so dust, allergens and mould inside the unit end up in the room. This matters more here than in a lot of the country because the Sunshine Coast’s humidity is ideal for mould, and research by the CSIRO has found that most air conditioners that are not looked after end up harbouring mould. Regular cleaning and maintenance is what keeps that in check.
Cleaning and professional servicing are two different things, and you need both to have a fully functioning system. The filter and surface cleaning you do yourself, but a professional service goes deeper. Your technician checks the refrigerant, electrical components and drain, deep-cleans the internal parts you cannot safely reach, and catches small faults before they become breakdowns.
As a general guide, it’s important to have your air conditioner professionally serviced at least once a year, ideally before summer when you use it the most. Systems that work hard in dusty locations, coastal conditions, or cool commercial spaces often benefit from a service every six months. Staying on that schedule keeps the system efficient and safe, and also helps protect your manufacturer’s warranty, which can require proof of regular servicing.
How to Clean your Air Conditioner between Services
Simple filters and fascia cleaning on an indoor wall unit is something most owners can safely handle themselves. Take it step by step:
- Safety first: switch off the power. Before you touch anything, turn the unit off at the wall or the isolator switch. Cleaning around live electronics is not worth the risk, and this is the one step you never skip.
- Remove and wash the filters. Open the front cover and slide out the mesh filters. Vacuum off the loose dust, then wash them in cool water with a mild detergent. Let them dry completely before they go back in; a damp filter is exactly where mould likes to grow.
- Wipe the fascia and vents. Wipe the outer casing and the vents with a soft, damp cloth. Keep water and any cleaners away from the electronics, and do not spray liquid into the unit.
That is the safe indoor routine, and it makes a real difference to airflow and air quality. But it’s important to remember that while filters and surfaces are safe to do yourself, anything deeper should always be left to a professional. Deep cleaning, servicing and maintenance get more complicated and dangerous, so they should always be carried out by a qualified technician.
How Often Should You Schedule a Clean, and What to Avoid
As a rough guide, give the filters and units a clean every one to three months. Often more regularly in summer or if the system runs hard. A quick tip that helps between cleans is to run the unit in fan-only mode for a little while after cooling, which dries out moisture inside and helps discourage mould.
Outside of this, it’s important not to open up the unit to clean the internal coils, the barrel (the fan behind the filters) or the drain. The manufacturers and consumer authorities like CHOICE are clear on this. Cleaning the internal components yourself risks damaging the unit, voiding your warranty, and potentially disturbing the refrigerant, which, by law, must be handled by a licensed technician. Harsh chemical coil cleaners can also strip the coating off the coils. The filters and surfaces are safe and easy to do, however, the internals should be left to the professionals.
When to Call the Professionals
Regular home cleaning has its limits, and there is a point at which a system needs professional attention. A clean filter cannot reach the internal components where the heaviest grime and mould accumulate, so certain signs indicate it is time to book a professional clean or service:
- A musty or mouldy smell when the unit runs. That smell is usually mould growing on the coils or in the drain, past where you can safely reach.
- Weaker cooling or higher bills even after you have cleaned the filters. If clean filters have not fixed it, the problem is deeper in the system.
- Water leaking from the indoor unit often points to a blocked condensate drain that needs to be cleared properly.
- It has been a year or more since a proper service, or you have never had one. An annual professional service is the sensible baseline, especially in this climate.
A professional clean, sometimes referred to as a wet wash, is where a qualified technician safely accesses and deep-cleans the coils, barrel and drain, confirms the system is operating correctly, and carries out the work without compromising the refrigerant circuit or your manufacturer’s warranty. It’s a level of cleanliness a filter rinse cannot match, and it is the difference between a unit that appears clean and one that genuinely is.
Professional Air Conditioning Cleaning With Arctic
For deep cleans, servicing and maintenance, Arctic can help. We are a local, Caloundra-based team, and we service, deep-clean and repair residential and commercial air conditioning right across the Sunshine Coast. Our technicians reach the internal components that an at-home clean cannot, and a regular service also helps protect your manufacturer’s warranty and keep your running costs down.
We look after split system, ducted and custom air conditioning, so we’re able to set up a preventative maintenance schedule, so it is one less thing to remember.
Noticed a musty smell or weaker cooling? Book a professional air conditioner clean or service with Arctic. Call 07 5439 7778 or request a free quote, and we will take care of the parts you cannot.
Frequently Asked Questions
Switch off the power, then open the front cover and remove the mesh filters. Vacuum off the loose dust, wash the filters in cool water with a mild detergent, and let them dry fully before refitting. Wipe the fascia and vents with a soft, damp cloth, keeping water away from the electronics. Outside, gently clear leaves and cobwebs from the condenser. Leave the internal coils and drain to a professional.
As a general guide, you should book a professional deep clean and service once a year, ideally before summer or when you’re about to use it most. Systems that run regularly in dusty or coastal conditions, or cool a larger commercial space, are better served every six months. Regular servicing keeps the unit running efficiently and safely, and it also helps protect your manufacturer’s warranty.
Yes, the filters, fascia, vents and the outside of the condenser are all safe to clean yourself (as long as you switch the power off first and keep water away from the electronics). However, you shouldn’t open the unit to clean the internal coils, barrel or drain as this runs the risk of damaging the unit, voiding your warranty and disturbing the refrigerant, which legally must be handled by a licensed technician. If your air conditioner needs a deep clean and service, you can call Arctic Aircon on (07) 5439 7778.
A musty smell is usually mould growing inside the unit, on the coils or in the condensate drain, where moisture collects. It is common in humid coastal areas like the Sunshine Coast. Cleaning the filters can sometimes help, but if the smell persists, it means the mould is deeper in the system, so it’s time to book a professional deep clean.
It depends on the type and number of systems, their condition, and whether it is a clean or a full service, so there is no flat rate. A single split system is a smaller job than a multi-head or ducted setup. The best way to get an accurate figure is to ask for a quote, and we will give you a clear price before any work goes ahead.
Cleaning your air conditioner’s filters is a great habit, and knowing when to bring in a professional is just as important. When the smells, weak cooling or leaks show up, or a year has passed, book a clean or service with Arctic. Call 07 5439 7778 or request a free quote.
This is general guidance only, so always follow your unit’s manual, and leave the internal components to a licensed technician.
