Top 5 reasons for air conditioning failure

Have you ever gone through the problem of your air conditioning unit blowing out hot air instead of cooling your space? Other common problems with existing air conditioners (ACs) result from faulty installation, poor service procedures, and inadequate maintenance.

The easiest way to avoid any complications arising from your AC is prevention. Hence, it’s important to look into the problems that are most likely to occur so you can take steps to prevent them. Below are five of the most prevalent ones:

Malfunctioning AC fans

To cool your unit, a fan blows air over the evaporator coil and another blows air over the condenser, which discharges the absorbed heat outside the building. You could have AC problems if any fans aren’t working correctly due to a faulty engine, a lack of oil, old belts, or too much dirt and debris. If you overlook the problem, it could lead to compressor failure when your air conditioner’s life is usually over.


One of the most common reasons for AC failure is dust, grime, and chemicals contamination. The ingress of foreign objects into the motor can dent the bearing raceways and balls, resulting in excessive vibration and wear. It can also prevent the cooling fan from working, decreasing the motor’s ability to regulate temperature and increasing the risk of overheating. For maximum AC efficiency, a clean filter is essential. Because particle build-up limits airflow, the unit must work harder to pull in the same amount of air. In the worst-case scenario, a dirty filter can increase your energy bill by up to 15% and cause the unit to malfunction, leaving you with long-term maintenance problems.

Faulty thermostat

In some circumstances, it is possible that your AC isn’t to blame for poor performance. If your thermostat isn’t working properly, it’s not giving your air conditioner the information it needs to switch on or off properly. This could indicate that your air conditioner isn’t working or is cycling too frequently, both of which can be harmful to your unit in the long run.

Refrigerant leakage

To work effectively, most air conditioners require hazardous refrigerants. While the refrigerant is confined and safe in a properly functioning air conditioning system, a refrigerant leak can be a significant issue. A leak will not only impact the performance of your AC system but will also harm the environment.

Poor airflow

ACs circulate warm air over cooling devices before releasing it into your home. You will not be able to get the most out of your air conditioner if any portion of the airflow system is disrupted or the blowing power is insufficient. This is commonly caused by dirty air filters, which can be cleaned or replaced to address the problem. Issues could also result from a system-wide problem with dirt and debris. Ensure your air conditioner gets a yearly inspection and cleaning to ensure it’s in good working order.

Repairing an AC is often an expensive affair. Hence, it is critical to keep it in good working order by performing routine maintenance. As the leading providers and installers of air conditioning, ventilation, heat recovery and climate control systems at FLR Cooling, our service goes beyond just supply and fit and includes complete maintenance and service so you can rest assured knowing your air conditioning installation and maintenance services are in experienced hands.