If your air conditioner is not cooling properly, you might not be able to detect it. At first, you might feel as if it is taking longer to cool your home. Then you might hear strange sounds, and smell noxious gases. Before you know it, you're sitting in a pool of sweat because your air conditioner has stopped cooling—a situation you do not want!

It's important to take action early on if you see the subtle signs, and to get to the bottom of your air conditioning issue. A few simple precautions and some regular maintenance can help your air conditioner run optimally all summer long. Keeping your air conditioner functioning optimally requires a few simple precautions and regular maintenance.

First, let's focus on the problem at hand: here's what you should do when your air conditioner doesn't work.

1. It is important to check the temperature

If your air conditioner is not blowing cool air, you should check the thermostat settings to ensure they are correctly configured. In this case, you need to turn your air conditioner off and on again to troubleshoot. Due to the multiple thermostats and zones on ducted air conditioners, this is a major problem.

When you have zoning technology configured manually, you may find yourself in a warm room while the rest of your home is still being cooled. You can restore cooling to the chosen room by using the app or thermostat.

Having temperature settings, cycle options, and air conditioning timers is great, but they can be confusing at first.

2. Make sure the doors are closed twice

You should also make sure your air conditioner is set exactly as you want it by checking your doors and windows. Even a single open door can significantly affect your air conditioner's performance, and quickly cause it to feel as if it isn't cooling at all. Leaving us wondering where the cool air is going, our attention is easily distracted from windows.

Older homes can also have very drafty doors, as they have ample space below and above where warm air can enter and circulate. In homes with negative pressure, warm air can also be sucked in, so simple solutions include door snakes, which can create a good seal and keep cool air flowing inside.

3. The compressor's conundrum

Whether you have a Split Ac not cooling, the compressor is the heart of the system. By controlling the air pressure within the system, the thermodynamic transfer takes place smoothly, creating the cool air we crave. So, if your compressor goes, you're sure to notice a rapid decrease in the amount of cool air your air conditioner produces.

There are no subtleties when it comes to this issue. Maybe you've noticed that your air conditioner works harder than ever, but still doesn't keep you cool. If so, you're probably experiencing compressor problems. A compressor's noise increases as it reaches its end of life, particularly in older models. Despite being quite disruptive, it's a great alarm and a good reminder that your air conditioner needs to be serviced.

4. A blockage has occurred

The air conditioner can also experience blockage, which can occur in many different places. In most cases, blockages begin in the filter, which is easily cleaned. As a result of not cleaning your air conditioner frequently, the filter can become overwhelmed, which can result in dust and debris entering your system. The problem is especially significant in ducted air conditioners, because the ducts can hide serious blockages for long periods of time. There's only one way to tell if your air conditioner doesn't work. There may be a blockage in your air conditioner if it has a musty or mouldy smell.

5. You may need a bigger system if none of those work

Lastly, there is a one size fits all solution to air conditioners that don't cool properly: replace them! Air conditioners can last a long time, but they also have a shelf life. If your air conditioner consistently fails to cool your home properly, it may be that it is just too small for the area in which it is located. It might also be on the verge of failure. In that case, you should consider installing a ducted or Split Ac not cooling that can service a larger area.