Singaporeans frequently complain that their aircon is not cold because of Singapore’s warm and humid climate. Generally, if a room remains warm after 1 to 2 hours, there may be some underlying reasons.
Aircon is Under-powered
Before you buy the aircon system, you should discuss with your aircon specialist. Under-powered aircon is not able to cool the room well. This leads the the problem of “aircon is not cold”. The table below is a general guide. Other than the floor area of the room, the height of the room should also be considered when buying an aircon system.
|100 to 250||5000 to 6000|
|250 to 350||7000 to 8000|
|350 to 450||9000 to 10000|
|450 to 700||12,000 to 14,000|
|700 to 1,200||18,000 to 21,000|
Aircon’s Gas is Low
We usually say that “aircon’s gas is low” when there is a need to top up refrigerant. Refrigerant is necessary to absorb and release heat during the cooling process. When it is low, the cooling process is affected and this leads to “aircon is not cold” problem. When there is a need to top up the refrigerant, there may be a leakage in refrigerant piping. As such, an experienced aircon specialist should check for the leakage first, seal it up before topping up the refrigerant. Otherwise, the refrigerant will continue to leak and the topping up of refrigerant has to be repeated again in the next few months. It is also important to fill it up with the correct type of refrigerant. Currently, most aircons uses R410A refrigerant. Some older aircons may still be using R22 refrigerant.
Aircon is Dirty
If the aircon is dirty, the dirt may affect the heat transfer process. As a result, the aircon is not able to cool the room easily. An experienced aircon specialist will perform an aircon chemical wash or aircon steam cleaning first if the aircon is very dirty. If cleaning the aircon solves the “aircon is not cold” issue, no further action is needed.
Incorrect Aircon Settings
Sometimes it may be just a small problem of aircon setting. You did not set the correct temperature in the controller and as such the thermostat triggers the aircon to stop blowing cold air.
Seal the Door and Window Gaps
Sometimes the “aircon is not cold” problem might not be due to malfunctioning aircon but other issues. If heat reduction or rejection window films are installed, there will be minimum greenhouse effect during the day. In addition, make sure that the room is well sealed. Door gaps at the edge and bottom of the door can be minimized with rubber seal.
You may also wish to read more about how to improve the performance of aircon.
No more “Aircon Is Not Cold” with Aircon Servicing SG
If you engage Aircon Servicing SG to service your aircon regularly, we should spot this aircon problem very early and rectify it. Engage us for aircon servicing now to avoid facing this “aircon is not cold” problem. Our contact number is (+65) 6871 8990. You can also email us at [email protected] Our aircon chemical maintenance and aircon steam cleaning will leave you delighted.