7 Reasons Your Aircon Is Not Cooling Properly

Ever found yourself sweating in the middle of summer, wondering why your aircon isn’t cooling properly? It can be frustrating when your air conditioning system isn’t working as expected, especially during those scorching summers. Before you hit the panic button, there could be a simple explanation behind your air conditioning woes. Let’s dive into the seven common reasons why your air conditioner might not be cooling properly and how you can fix the issue.

1. Dirty Air Filters

One of the most common reasons for an underperforming air conditioner is a dirty air filter. Over time, air filters collect dust, dirt and debris, which can block airflow and reduce the efficiency of your air conditioning system. When the airflow is restricted, your aircon has to work harder to cool the room and you may notice uneven temperatures or weak cooling.



How to fix it: Check your air filters every 1-3 months, especially during heavy usage seasons. If they look clogged, it’s time for a clean or replacement. Regular air conditioning maintenance can prevent this issue and keep your system running smoothly.

2. Thermostat Issues

Another common culprit behind a malfunctioning aircon is a faulty thermostat. If your air conditioner is not cooling properly, your thermostat may be set incorrectly, miscalibrated or have an internal fault. A thermostat that’s not registering the correct room temperature could cause your aircon to stop cooling prematurely or overwork without ever cooling the space adequately.



How to fix it: First, check that the thermostat is set to the correct mode (cooling) and temperature. It may need recalibration or replacement if it still doesn’t function properly.

3. Low Refrigerant Levels

The refrigerant in your air conditioner plays a vital role in cooling. It absorbs heat from inside your home or office and releases it outside. If the refrigerant levels are too low, your system will struggle to cool the air effectively. Low refrigerant levels are usually a result of leaks in the system, which can lead to larger mechanical problems if left unaddressed.



How to fix it: Low refrigerant requires professional air conditioning maintenance. If you suspect a refrigerant leak, contact a licensed technician to assess and recharge your system.

4. Blocked Condenser Coils

The condenser coils in the outdoor unit release the heat that the refrigerant has absorbed from inside. However, when these coils get blocked with dirt, dust or grime, they can’t efficiently dissipate the heat, leading to an overworked aircon and reduced cooling capacity.



How to fix it: Ensure the outdoor unit is clear of debris like leaves and grass. Professional cleaning of the condenser coils during a routine air conditioning maintenance service will prevent any long-term damage.

5. Leaky Ductwork

If your air conditioning system has ductwork, leaks or cracks in the ducts can significantly reduce the efficiency of your aircon. Leaky ducts cause the cooled air to escape before it reaches the rooms, which means your air conditioner will have to run longer and harder to maintain the set temperature.

How to fix it: Inspect your ductwork for any visible damage or leaks, particularly in exposed areas. If you can’t pinpoint the problem, hiring a professional to conduct a more thorough assessment and repair is best.

6. Faulty Fans or Blower Motors

The fan in your aircon helps circulate cooled air throughout your home or office. If the fan or blower motor is malfunctioning, the airflow will be compromised, meaning your aircon won’t be able to distribute the cool air effectively. This could be due to worn-out belts, poor lubrication or a more serious electrical issue.



How to fix it: Fans and blower motors are complex components and a professional technician should handle repairs or replacements. Regular servicing can help detect and prevent fan-related problems before they escalate.

7. Incorrect Aircon Size for the Space

If your air conditioning unit is too small for the space it’s supposed to cool, it will struggle to reach the desired temperature. On the flip side, an oversized unit will cool the room too quickly, causing short cycling, which can wear out the unit and lead to inconsistent cooling.



How to fix it: When purchasing an aircon, it’s crucial to choose the right size for your space. A professional technician can calculate the cooling load for your home or office and recommend a suitable system. If your current unit is incorrectly sized, upgrading to the correct size may be the only solution.

Need Air Conditioning Maintenance? Call Us Today

If your air conditioner isn’t cooling properly, it could be due to various factors like dirty filters, thermostat problems or refrigerant leaks. Routine air conditioning maintenance is key to keeping your system in peak condition. At Entire Trades, we provide comprehensive air conditioning services, from installations to repairs and regular maintenance. Whether you’re a homeowner or a business owner, we can ensure your air conditioning system runs efficiently. This keeps your space cool and comfortable all year round. Contact us today to discuss how we can help with your air conditioning needs.