Split System Airconditioner cleaning
Fault Finding & Electrical Troubleshooting Perth
Keep Your Home Safe
Split system air conditioners should be professionally cleaned every 12 months to maintain efficiency, prevent breakdowns, and protect your indoor air quality. Over time, dust, moisture and organic particles settle deep inside the indoor unit. These conditions cause the evaporator coil’s thin aluminium fins (blades) to become clogged, reducing airflow and forcing the system to work harder.
This buildup also creates the perfect environment for bacteria, mould spores, and biofilm growth. According to multiple HVAC industry health reports, contaminated split systems can circulate airborne pollutants linked to respiratory irritation, allergies, asthma flare-ups and poor indoor air quality. When mould grows inside the unit, every time the system runs, those particles are pushed directly into the room.
A professional clean removes this hidden contamination and restores your system to safe, efficient operation.
At Circuitree Electrical, we provide thorough, hygienic split-system air conditioner cleaning for homes and businesses across Perth — ensuring your system performs at its best while helping keep the air you breathe healthy.
What We Do
Our air conditioning cleaning service includes a full internal clean of your split-system unit, focusing on the most important components for air quality and efficiency:
- Internal coil and fin (blade) cleaning: We remove built-up dirt, dust, mould and residue from between the coil fins to restore airflow.
- Fan barrel cleaning: This section often hides a heavy layer of grime that affects performance and produces odours.
- Anti-bacterial and mould-removal treatment: We use an approved disinfectant solution to safely neutralise bacteria and mould spores inside the unit.
- Drain and tray cleaning: Clears blockages that cause leaking and moisture issues.
- Exterior casing clean: We wipe down the front cover and vents to leave the system looking and smelling fresh.
- Functional check: Once the clean is complete, we reassemble the unit, check operation and ensure proper airflow.
No matter how dirty we ‘ll get it cleanied and running properly again.
How We Do It
We follow a safe, hygienic and efficient cleaning process using professional air-con cleaning tools and methods:
Before any work begins, the system is safely powered down. We then remove the cover and access panels to expose the internal coils and fan barrel.
A specialised waterproof cleaning bag is fitted under the unit as this funnels all dirty water into a catch bucket, protecting your walls and floors.
We then use a high-pressure controlled fine jet sprayer. This washes between the small aluminium blades (fins), flushing out:
- dust
- mould bacteria
- sludge built-up
- residue
We then apply anti-bacterial disinfectant cleaning spray which contains an air-conditioning safe disinfectant that sanitises the internal surfaces and helps prevent mould regrowth.
During the process all the dirty water drains into the collection bucket and is disposed of responsibly down a drain.
Once the internal components are cleaned and dried, we re-fit the covers and test your system to ensure correct airflow and operation.
Why Choose Circuitree Electrical?
- Your system is cleaned by qualified technicians who understand electrical safety and air-conditioning mechanics.
- We don’t just wipe the outside — we clean deep inside where mould and bacteria hide.
- An annual split-system clean helps reduce airborne pollutants, odours, allergens and mould.
- A clean system cools or heats faster and uses less energy.
- By clearing the coils and drain pathways, we help extend the lifespan of your system.
- We’re a Perth-owned company focused on transparent pricing, reliable service and long-term customer relationships.
With Circuitree Electrical, you’ll have confidence knowing your electrical issues are solved properly the first time.
Fault Finding & Troubleshooting
Freqently Asked Questions
How often should a split-system air conditioner be cleaned?
Split-system air conditioners should be professionally cleaned once every 12 months.
Homes near the coast, households with pets, or systems that run daily may require cleaning every 6 months.
Regular cleaning prevents dust buildup, improves airflow, reduces power use and helps protect your indoor air quality.
What happens if I don’t clean my air conditioner regularly?
Without proper cleaning, dust, moisture and organic particles accumulate inside the coils and fan barrel. This can lead to:
Reduced cooling and heating efficiency
Higher electricity bills
Mould and bacteria growth
Strong odours
Blocked drainage and leaking
Extra strain on the system, shortening its lifespan
A dirty air conditioner can also circulate airborne irritants that worsen allergies or respiratory symptoms.
Does air conditioning cleaning remove mould?
Yes.
Our split-system cleaning service includes a disinfectant treatment designed to remove mould, bacteria and biofilm inside the unit.
We clean between the fins, coils and internal components, the areas where mould tends to grow the most.
This helps restore cleaner, healthier airflow into your home or workplace.
Is air conditioning cleaning safe for my home?
Absolutely.
We use a purpose-made air-conditioning cleaning bag to catch all dirty water and prevent splashes on your walls or floors.
All cleaning solutions are air-conditioner safe and designed for indoor environments.
Our electricians isolate power before beginning work and follow safe, hygienic cleaning practices throughout the process.
How long does a professional split-system clean take??
A typical split-system clean takes 45–75 minutes, depending on the condition of the unit.
Systems with heavy dust or mould buildup may take slightly longer.
Once the cleaning is complete, we reassemble the air conditioner and run a full functional check to ensure proper operation and airflow.
