Reasons Why Your Aircon Is Blowing Warm Air

If you are a resident of Singapore and your air conditioner starting to blow warm air, it’s the time to call a professional to repair it. However, if you are wondering why you are causing the problem, then there are six reasons why your air conditioner blowing warm air and in some cases you may have a solution yourself.

Thermostat set incorrectly: This is the most common problem with getting hot air from an air conditioner. If you set the thermostat to heating mode, it will only blow warm air, not cool your room, it will only generate more heat in your room. So, if you find that your air conditioner has no reason to warm the air, then it is a good idea to check this before calling any service company. If you find that the thermostat is set up correctly and you still get warm air from your air conditioner, there is no problem calling your professional therefor and booking your date for checking and service .

Inappropriate air conditioning maintenance: Improper maintenance or delayed maintenance may be an important cause of this problem. This is why it is very important that you get proper maintenance of your air conditioning unit or it may start to give you warm air without any warning. In addition, when your air conditioning service provider is doing maintenance, make sure you check that everything is working and you will only approve work if you find that the air conditioner gives you cool space and all other functions are working effectively.

Dirty air filter blocking air flow: Very often, you may get warm air from the air conditioner just because the air filter is dirty. Therefore, if you use air conditioners on a regular basis, it is advisable to change the air filter every 2 to 3 months to avoid any malfunction or overheating of the air. In addition, changing the filter will ensure that there is no ice on your air conditioning coil.

Refrigerant Leakage: Any form of refrigerant leak from an air conditioning unit will surely give you warm air instead of cooling your room and will only heat it. This spillage can be caused for any reason, but if you find any type of refrigerant leak in the air conditioner, do not use it immediately, turn off your air conditioner immediately and call a aircon professional for help.

Compressor failure: The compressor is the main component of any air conditioning condensing unit and you may also get warm air from the air conditioner if you have any problems. This is the main part of any condensing unit and this part is responsible for cooling the circuit by compressing the cooling circuit. Due to overheating or continuous operation, different types of malfunctions may result, in which case you need to repair them or you need to replace them with new ones in order to get cold air from your air conditioner.

The condensing system is not working properly: The condensing unit compresses the refrigerant and the compressed refrigerant enters the coil holding system to cool it down. But if there is any damage or problem with this system then your air conditioner may start to blow warm air in your room. The reason for this question may be a simple circuit breaker trip or any major problem. So, if you do not understand the problem, calling a professional to fix it is the best thing you can do.


In addition to all these issues, you may get hot air from your air conditioner due to a blocked drain. Therefore, it is also a good idea to check your air conditioning drain, and if you find any blockage in the drain, remove the blockage before calling a cheap aircon service Singapore or trying out any other aspect.