What Causes An Air Conditioner To Stop Cooling?

An air conditioner is a cooling system utilized in homes and other indoor spaces in order to effectively lower the temperature within the space. It does this through removing the heat and transferring it to an outdoor space. Simultaneously, it will filter cool air into the indoor space. But what causes an air conditioner to stop cooling? We’ll explore this question and others in the article below.

Why Would An Air Conditioner Not Be Cooling Properly?

If an air conditioner is not cooling properly, there may be a range of reasons for this. These include the conditioner having dirty filters, low levels of refrigerant, or potentially an incorrectly set thermostat. When seeking to find the cause of an air conditioner not cooling, looking at these elements will likely lead to the fault.

Due To Dirty Filters

One of the most common reasons for an air conditioner not cooling properly is due to the filters in it not being clean. If the air conditioner filter is clogged up with dirt or dust and not able to filter through cool or warm air, for example. When this is the case, it’s strongly advised to have the filter checked, and if blocked have it replaced.

Due To Lack Of Refrigerant

A refrigerant is a fluid that absorbs the heat from the surrounding air, meaning an insufficient amount will lead to your air conditioner not cooling. In order to avoid this, it’s recommended to have your air conditioner serviced regularly to ensure there is no leak or shortage of the conditioners refrigerant. There are also warning signs of this shortage, such as hissing or bubbling noises coming from the system. If this is the case, it’s recommended you call a professional to assist and have the coolant refilled.

Due To Incorrect Thermostat Settings

Another reason the air conditioner may not be cooling is due to incorrect thermostat settings. This can be evident if the air conditioner is blowing out cool air, followed by lukewarm air. The reason being, if incorrectly set, the fans will keep going even if the air is not cooled. The way to resolve this is simply to adjust the thermostat settings to auto mode, as this will mean the fans are only working when the air has been cooled.

An air conditioning system can be an incredibly helpful piece of equipment for a household or building which is seeking to handle hot weather through circulating more cool air throughout the indoor space. However, sometimes this cooling system fails to operate effectively.

In situations such as this, there are a host of potential causes for the conditioner to stop cooling down the space.These include the filter being dirty, a shortage of refrigerant, or coolant, for the conditioner, or even an incorrectly set thermostat. When seeking to fix the issue of the air conditioner not cooling down a building effectively, inspecting these elements will likely lead to the causation and you will be able to resolve the issue. If you cannot figure out the issue, contact an HVAC professional who can help you out.