It’s hot outside, and your air conditioner is running full blast. But it doesn’t seem to be making any difference. If you’re experiencing this problem, don’t worry! You’re not the only one. Sometimes an air conditioner seems like it should work but just never does its job well enough for a variety of reasons. Heating and cooling have always been a balancing act, but today’s high-efficiency systems are designed to be more energy-efficient than ever before. But when they go wrong, the consequences can be costly. When you begin to notice that your AC system is getting hot then it’s a good idea to call in a professional air cond company to assess it right away. 

It’s understandable that no one wants to spend the summer in a sweltering house, but that is what happens when simple reasons why your Aircond is hot: 

1. Your AC unit Is Aging 

Among the main reason why your AC unit is hot, it’s because it’s too old to keep up with your demands. Parts will wear out and lose efficiency over time, leaving you with less and less cooling capacity. When these components wear out, the air conditioner loses its ability to work. Older units that are stressed beyond their ability can often overheat, causing warm air to blow.

So how can you tell if your air conditioner is old and needs to be replaced? There are many signs of an old AC. One sign would be that the machine has a difficult time cooling off the space. Another sign could be that when it does work, it makes a lot of noise or vibrates excessively in its place. When you begin to experience these things, it’s time to say goodbye to your old AC unit and head out to buy a new one. 

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2. Uncleaned Air Conditioning Components 

If your air conditioner is not working properly, it might be because the filters are dirty. Dirty filters mean that you will have to use more energy and money on cooling your room. It also means that you won’t get as much cool air blowing out of the vents in your house or building. Furthermore, blockages caused by dust and debris accumulation in your air conditioner’s fan blades, and interior parts limit the unit’s cooling performance. 

Inner blockages and clog-ups will force the cooling mechanisms of your AC to quit functioning entirely if the obstruction increases or entirely blocks airflow. If you want this your AC unit to function effectively as it should, you must ensure to properly clean its outer and inner components regularly. Not only will this save you from costly repairs, but it will also ensure your conditioning unit is working well. 

3. Your AC’s Refrigerant Levels are Low

It’s hot outside. The last thing you want to do is turn on the air conditioner and cool down your home, only to find out that it’s not working. If this has happened to you before, chances are your refrigerant levels were low. A low refrigerant level in your air conditioner can be very frustrating. It is also a sign that something is wrong with the unit, and it needs to be repaired or replaced. 

There are many reasons why this may be happening to your AC unit, and it’s commonly caused due to leaks, dirty filters, high humidity, coil freeze-up, and faulty thermostat. Refrigerant is the lifeblood of an air conditioning system. If it gets too low or leaks out, your A/C will stop working. That means that you’ll be getting hot days with no relief from the heat. Not to mention higher energy bills! 

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4. Proper AC Unit Maintenance and Servicing isn’t Implemented 

Because of Malaysia’s humid climate, proper air conditioning maintenance is important, as it becomes hot at home every night after a long day at work. If your air conditioner is blowing warm air, inspect the fins to see if they are clear and clean. If you don’t practice regular cleaning and maintenance of your AC unit, this could be the major reason why it’s getting hot or blowing hot air into your room. Improper maintenance can lead to a lot of AC problems which can sabotage its efficiency.

Your air conditioner’s operating performance can be harmed by a variety of other problems, so be sure to keep it maintained on a regular basis to ensure proper operation.

5. Your Air Conditioner’s Thermostat Level Is Wrongly Set

How many times have you come home from work to find your house hot and stuffy? You might be wondering why the air conditioner is still running. Surprisingly, it could be that your thermostat setting is wrong! Stop your AC unit from blowing out hot air by adjusting its thermostat.

When this happens, take a look at the instructions that came with the appliance to ensure that everything matches up.

You will want to find the right temperature for your home in order to make sure that you are getting cool air when it matters most.


There is nothing worse than coming home to a warm house after being outdoors all day. You can prevent the listed common air conditioning issue by following a few maintenance tips.

Change the air filter once every month, monitor the setup on your programmable thermostat, and get your HVAC system serviced on a regular basis.