Your Aircon Can’t Deal with the Hot and Cold Spots? Here’s why!

Aircon Can't Deal with the Hot and Cold Spots

Nowadays, air conditioners are in lots of homes. Most families depend on aircon systems to provide them with comfort, no matter the weather. And that’s the very reason why so many people rely on air conditioners. But this comfort can be easily ruined. 

Cold or hot spots are not an uncommon issue, and uneven temperatures often cause massive frustration to homeowners. Luckily, there’s a solution to this problem. Let’s see some of the common causes of hot and cold spots.

Clogged Ductwork

Traditional aircon systems employ air ducts as a means of dispersing the conditioned air throughout your home. But what happens when it gets clogged? You’re right! The air won’t be allowed into your rooms. In such cases, you should first locate the supply and return ducts. Check the ceiling or walls. When you find them, inspect them for any objects or dirt that may impede the normal airflow. 

Also, make sure you open all supply vents, even in rooms that you don’t use often. Doing this will not make your aircon system more efficient. It can only damage your conditioner’s blower motor, and that’s not what you want.

Dirty Filter

Air filters are supposed to be the most natural aircon part of maintaining. Unfortunately, lots of homeowners forget to clean or change their filters. You can imagine how much strain this is for your machine. 

As a result, your air conditioner has to work harder to force the air through the dirty filter. Changing or cleaning the air filter is a simple task that every homeowner should do every one or two months. Regular cleaning of the air filter will ensure that your aircon delivers an adequate amount of airflow to your home.


Rooms with southward looks tend to get more direct sunlight than other areas in a home. Access to sunlight may be a good advantage in winter. But the scorching summer heat can cause quite the discomfort, especially when your aircon unit is trying to cool your home. 

To deal with this, put up some shades or blinds. Installing an awning is another creative alternative. Eliminating the heat coming from direct sunlight when needed will also reduce the risk of creating cold and hot spots in your home. 

Bad Thermostat Location

Lots of homeowners believe that the location of the aircon thermostat doesn’t matter. Contrary to popular belief, it does matter a lot. The thermostat’s primary goal is to provide your air conditioner with information on how much cold or hot air to deliver. But exposing it directly to heat or cold will result in incorrect readings. Typically, you can have an aircon technician fix the issue by moving the thermostat to a better location.

Improper Sealing

Solar heat gain is just one of the external causes of hot and cold spots in your home. The air coming in from outside can seriously reduce your aircon system’s to condition the indoor temperature. You must seal all gaps, cracks, and other potential access points for air. So, checking your windows and doors is a good starting point.

Wrong Aircon Size

If you have chosen your aircon system just by the looks, no wonder why your home suffers from hot and cold spots. You must size your air conditioning unit appropriately to have enough capacity to heat or cool a home. Buying an undersized machine will lead to a struggle in meeting the demanded temperature. Oversized air conditioners may quickly heat or cool your home. But this will also result in uneven temperatures paired with improper humidity regulation. 

The best thing to do in such cases is to replace your system with a new one. There are a few methods to determine the aircon power capacity required for each room. Ultimately, you should consult with a professional aircon technician or a retailer. 

Conflicting Preferences

Last but not least, consider that the sole cause of hot and cold spots in your home might be because of the different temperature preferences among your family members. While this may not have a direct connection to your aircon system, your entire family will benefit from installing a zoning system in your home. 

Final Thoughts

To conclude, there are several reasons why there are hot and cold spots in a home. No matter the cause, taking proper and regular care of your aircon system will eliminate the issues. Moreover, introducing a zoning system at home can significantly improve the quality of comfort. Defining your house in different zones will allow you to control the temperature in each area individually. 

If you’re looking for a professional aircon services in Singapore, LK Brothers is right there for you. The company’s aircon technicians are experienced and are experts at various air conditioning system installations. They will install your zoning system in no time and at a reasonable price.


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