5 SIGNS YOUR AIR CONDITIONING UNIT NEEDS REPAIRS

Complete Cooling Services – Expert HVAC & Refrigeration: With over 107 years of combined experience, we handle installations, repairs, and maintenance for homes and businesses and approved partners for Daikin, Midea, Mitsubishi Electric, and Mitsubishi Heavy Industries, we provide energy-efficient systems with warranties up to 10 years. Our honest, tailored advice ensures the right solution every time - keeping your environment comfortable, compliant, and efficient all year round.

5 Signs Your Air Conditioning Unit Needs Repairs

When it comes to keeping your space cool/heat and comfortable, a properly functioning air conditioning unit is essential.


Like any other machinery, air conditioners can experience issues over time. In these scenarios, it's crucial that you’re able to recognise the signs of a faulty air con before it leads to a complete breakdown.


In this blog post, we will highlight five key signs that indicate your air conditioning unit may need repairs.

5 SIGNS YOUR AIR CONDITIONING UNIT NEEDS REPAIRS

1. Poor Cooling/Heating Performance

One of the most obvious signs that your air conditioning unit needs attention is a noticeable drop in cooling/heating performance. If your space isn't as cool/hot as it used to be or if you've had to adjust the thermostat to maintain a comfortable temperature, it's time to call in an air conditioning company for a check-up. Reduced cooling/heating capacity could be due to a refrigerant leak, a clogged filter, or a malfunctioning compressor.

2. Unusual Sounds

Your air conditioning system should operate quietly in the background. If you start hearing unusual sounds such as banging, hissing, or screeching coming from your unit, it's a clear indication that something is amiss. These noises could signal anything from loose parts to a damaged compressor. Ignoring these sounds can lead to more significant and costly repairs down the line.

3. Strange Odours

If your air conditioning unit emits strange or unpleasant odours when it's running, it's a sign that your system requires attention. Musty or mouldy smells could indicate mould growth in the ductwork or the evaporator coil. A burning odour might suggest an electrical issue. In either case, these odours not only affect the comfort of your space but can also have health implications.

4. High Energy Bills

Have you noticed a sudden spike in your energy bills without a corresponding increase in usage? A faulty air conditioning unit could be the culprit. When an air con is struggling to operate efficiently, it requires more energy to achieve the desired temperature. This increased energy consumption will be reflected in your monthly bills. Regular maintenance and prompt repairs can help keep your energy costs in check.

5. Water Leaks

Water leakage around your air conditioning unit or in the indoor space can be a sign of trouble. In some cases, it may be due to a clogged condensate drain line, which can lead to water overflow. However, it could also be caused by a refrigerant leak, which can pose serious health risks. Any signs of water leakage should be addressed promptly to prevent further damage and maintain indoor air quality.


A faulty aircon system can disrupt the comfort of your space and result in costly repairs if left unattended. Recognising these five signs can help you take timely action to address any issues with your air conditioning unit.


If you've noticed any of these signs or suspect your air con needs repairs, don't hesitate to contact Complete Cooling Services. Whether you have a domestic or commercial air conditioning system, our team of experienced technicians is ready to diagnose and fix any issues to ensure it runs smoothly and efficiently.

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