When our air conditioner stops working properly, it can quickly turn a comfortable space into a hot and sticky one. Understanding the basics of troubleshooting can help you identify the root cause of the problem and determine whether it’s something you can fix on your own or if it’s time to call in a professional. Even with minimal technical knowledge, learning to spot issues early can save time and money and keep your environment comfortable.

Many of the problems that arise with air conditioners are common and can often be resolved with a few simple steps. From strange noises to reduced cooling efficiency, recognising these issues and addressing them promptly can prolong the life of your unit. Having a basic toolkit and knowing how to use it can also make a significant difference when you’re trying to troubleshoot.

Identifying the Root Cause of AC Problems

When your air conditioner isn’t working as it should, the first step is to identify the root cause of the problem. Often, different issues can manifest similar symptoms, so it’s crucial to observe carefully. One common sign is when the air conditioner starts to make strange noises. This could be due to loose components, debris blocking parts, or wear and tear on internal parts such as the fan motor or compressor.

Another significant indicator is when the unit emits unusual smells. If you notice a musty odour, it might suggest mould or mildew build-up within the system, often caused by trapped moisture. A burning smell, on the other hand, could point to electrical problems or overheating parts. Observing the performance of the airflow is also essential. If the air feels weak, isn’t as cool as it should be, or is unevenly distributed, there could be problems with the ductwork or a clogged filter. Noticing these symptoms early can help you address issues before they worsen.

Quick Fixes for Common Air Conditioner Issues

Once you’ve identified the problem, some common air conditioner issues can be quickly fixed without needing a professional. If strange noises are coming from the unit, turn off the power and check for any loose parts or debris that may have found their way into the system. Ensure that the screws are tight and that nothing is obstructing the fan.

For unpleasant smells, changing or cleaning the air filter can often resolve the issue. Filters should be cleaned or replaced regularly to prevent mould and dust build-up. If poor airflow is the problem, check the filter first. Sometimes, cleaning the evaporator and condenser coils can also improve performance. These coils can be cleaned using a soft brush and a coil cleaner solution found at hardware stores.

Ensuring the area around the outdoor unit is clear of debris like leaves and twigs can also improve efficiency. By regularly performing these simple maintenance tasks, you can keep your air conditioner running smoothly and effectively, ensuring a comfortable environment for everyone.

Smart Thermostat Settings to Save Energy

Using a smart thermostat can make it easier for us to save energy with our air conditioner. Smart thermostats allow us to set different temperatures for various times of the day. For instance, we can set the temperature a bit higher when we are not at home and lower it just before we return. This way, the air conditioner doesn’t have to work hard all the time, which saves energy. A good target temperature to keep our home comfortable and efficient is around 25 degrees Celsius when we’re at home.

Some smart thermostats also come with advanced features like learning our cooling habits and adjusting the temperature automatically. We can control these thermostats from our smartphones, making it easy to change settings even when we’re not at home. If we forget to adjust the thermostat before leaving, we can do it from our phones. These smart settings help us keep our home cool while using less energy.

Regular Maintenance for Long-Term Energy Savings

Keeping our air conditioning system well-maintained is important for long-term energy savings. Regular maintenance helps catch problems early, preventing bigger issues later. It’s a good idea to have a professional check our air conditioner at least once a year. During this check, the technician will clean and tune up the system to make sure it runs smoothly and efficiently.

Besides professional maintenance, we can do some simple tasks ourselves. We should replace or clean the air filters every month to keep the air flowing easily. Checking for leaks and making sure the outdoor unit is clear of leaves and debris also helps. Taking care of these tasks can save energy and keep our air conditioner running longer. A well-maintained system will perform better and keep our home comfortable without wasting energy.


Improving our air conditioner’s efficiency doesn’t require a lot of effort. By using smart thermostat settings and keeping up with regular maintenance, we can ensure our system runs efficiently. These easy steps help us save energy, reduce our bills, and keep our homes comfortable.

At 2Cool, we are dedicated to helping you get the best performance from your air conditioning system. Whether you need maintenance, installation, or expert advice, our team is here to help. Contact our AC contractor today to learn how we can assist you in keeping your home cool and efficient all year round.