In Perth’s hot, dry summers and increasingly warm shoulder seasons, a reliable air conditioning system is essential. But like any appliance, air conditioners can experience issues over time—especially if they’re working overtime during Perth’s peak heat. Recognising the early signs that your air conditioner needs repair can save you from a full system breakdown, costly emergency services, and the discomfort of sweltering heat.
In this blog, we’ll walk you through the top signs your air conditioning unit needs attention and why prompt repair is crucial for Perth residents.
1. Blowing Warm or Weak Air
One of the most obvious signs that your air conditioner needs repair is when it blows warm or insufficiently cool air, even when set to a cold temperature. This could indicate:
- A malfunctioning compressor
- Low refrigerant levels
- A blocked or dirty air filter
In Perth’s climate, even a day without proper cooling can feel unbearable. If you notice warm air coming out of your vents, it’s time to call a professional before the issue worsens.
2. Unusual Noises Coming from the Unit
All air conditioning units make some noise during operation. However, if you hear:
- Grinding
- Squealing
- Banging
- Clicking sounds when turning on/off
…it’s often a sign of internal damage or loose components. Left untreated, these noises can lead to severe damage. Timely servicing can help avoid expensive repairs or complete system failure.
3. Strange Odours or Musty Smells
A properly functioning AC should never produce unpleasant smells. If you detect:
- A musty smell: This may indicate mould or mildew growth in the ducts or filters.
- A burning smell: This could point to burnt wiring or overheating components.
Perth homes near coastal or bushland areas are especially prone to humidity build-up and dust—two major contributors to these odours. Addressing the issue early ensures your indoor air quality isn’t compromised.
4. High Energy Bills with No Change in Usage
Have your energy bills spiked suddenly despite using your AC normally? That could be a red flag. An inefficient system, whether due to a refrigerant leak, dirty filters, or worn-out components, will draw more power to maintain the desired temperature.
Given Perth’s increasing energy costs, an unexplained rise in your electricity bill could justify an inspection by a qualified technician.
5. Water Leaks or Moisture Around the Unit
Your air conditioner naturally produces some condensation, but it should never leak or pool around your unit. Water leaks can signal:
- Blocked or broken drainage tubes
- Refrigerant leaks (which are hazardous)
- Frozen evaporator coils
Besides damaging your walls or flooring, moisture build-up can lead to mould and mildew issues. If you notice leaks, don’t delay in getting professional help.
6. Frequent Cycling On and Off
While it’s normal for your AC to cycle more often during extreme heat (common in Perth), it should not be switching on and off repeatedly in short bursts. This behaviour could be due to:
- An oversized or undersized unit
- Thermostat issues
- Electrical problems
Frequent cycling affects energy efficiency a
nd stresses the system. It’s a clear sign that the system needs calibration or repair.
7. Reduced Airflow from Vents
If the airflow from your vents feels weak, even when the system is set to high, there may be:
- A clogged filter
- Obstructed or leaking ductwork
- A failing fan or motor
Perth’s dusty outdoor conditions—especially during the dry months—can lead to faster clogging of filters and ducts. Regular inspections help maintain optimal airflow.
8. Thermostat Issues
Sometimes, the problem lies not in the AC unit itself, but in the thermostat. If:
- Some rooms feel colder or warmer than others
- The unit won’t respond to thermostat settings
- The display is malfunctioning
…it may be time to replace or recalibrate the thermostat. Smart thermostats are also becoming a popular upgrade for Perth homes for better control and energy savings.
9. Your AC Is More Than 10–15 Years Old
Even with excellent maintenance, most air conditioners have a lifespan of 10 to 15 years. If your unit is nearing or past this age and showing any of the above signs, it may be more cost-effective to consider a replacement than ongoing repairs.
Modern systems are far more energy-efficient and better suited to handle Perth’s climatic conditions.
Why Prompt Repairs Matter in Perth
Postponing minor repairs can lead to:
- Sudden breakdowns during a heatwave
- Greater wear on the system, shortening its lifespan
- Higher utility costs
- Health issues from poor indoor air quality
Given Perth’s high summer temperatures and reliance on ACs from October through March (and even beyond), being proactive about air conditioner repairs ensures comfort and savings.
What to Do If You Notice These Signs
- Turn off the system to prevent further damage.
- Check the filters and thermostat for basic troubleshooting.
- Call a licensed HVAC technician for diagnosis and repairs.
Avoid DIY fixes unless you’re cleaning the filter or resetting the thermostat. Complex internal issues are best handled by professionals to ensure warranty safety and proper functioning.
Trust Aircool Care – Perth’s Air Conditioning Experts
At Aircool Care, we understand the specific needs of Perth homeowners. Our team of licensed, experienced technicians offers prompt and affordable air conditioner repair services tailored to our local climate.
We diagnose the root cause quickly and provide lasting solutions, whether it’s a split system, ducted unit, or reverse cycle setup. From worn-out motors to electrical repairs or refrigerant top-ups, we’ve got your AC covered.
Final Thoughts
Being aware of the early warning signs of air conditioner problems can save you time, money, and stress. With Perth’s high summer temperatures, a functioning AC is not a luxury—it’s a necessity.
Don’t wait until it breaks down completely. If you’ve noticed any of these symptoms, reach out to Aircool Care today for expert, reliable, and fast air conditioning repairs in Perth.