An air conditioner can feel like a lifesaver on a hot day or a cozy comfort when it’s cold outside, but what happens when your air conditioner is not working as it should? Whether your air con is not cooling or the split system isn’t heating, you might start wondering, “What’s going wrong?”

From minor fixes to bigger repairs, the causes behind your system’s issues can vary, and understanding them is the first step in getting things back on track.

In this blog, we’ll take you through the most common problems with split system air conditioners, why these problems occur, and how you can fix them.

Why Is My Air Conditioner Not Cooling?

When your air conditioner is not blowing cold air, it can be incredibly frustrating, especially during hot summer months. There are several potential causes for this issue, ranging from simple fixes to more complicated problems that may require professional help.

Common Reasons Your Air Conditioner Isn’t Blowing Cold Air:

• Dirty Air Filters: Over time, the filters in your air conditioner collect dust and debris. If these filters aren’t cleaned or replaced regularly, they can block airflow and prevent your system from blowing cold air.
• Low Refrigerant Levels: Refrigerant is essential for cooling the air in your home. If your system has a refrigerant leak or low levels, it won’t be able to cool the air effectively. You’ll notice the air conditioner not cooling or taking much longer to reach the desired temperature.
• Thermostat Issues: Sometimes, the issue isn’t with the AC unit itself but the thermostat. If the thermostat is incorrectly calibrated or malfunctioning, it might prevent the air conditioner from cooling properly.
• Clogged Condenser Coils: Your air conditioner’s condenser coils can get dirty or clogged with debris over time. When this happens, the system has to work harder to cool the air, which can result in the air conditioner not working as effectively.

Why Is My Air Conditioner Not Heating?

Is your air conditioner not heating during those chilly winter days? Just like cooling problems, there are several reasons why your split system isn’t blowing hot air.

Common Reasons Your Air Conditioner Isn’t Blowing Hot Air:

• Faulty Reversing Valve: Split systems use a reversing valve to switch between cooling and heating modes. If this valve is faulty, your air conditioner may not heat as it should, leaving you with only cool air.
• Thermostat Settings: If your thermostat is set incorrectly or isn’t functioning properly, it could be the reason why your system isn’t switching to heat mode. Make sure the thermostat is set to “heat” and not “cool.”
• Low Refrigerant Levels: Just like with cooling, if your air conditioner’s refrigerant is too low, it won’t be able to blow warm air either. Refrigerant is necessary for both the heating and cooling cycles of your split system.
• Dirty Air Filters: Once again, dirty or clogged air filters can affect heating. If airflow is restricted, your system can struggle to maintain the temperature, resulting in poor heating performance.

How Quickly You Can Fix Split Systems Not Cooling and Heating

You might be wondering, “How do I fix my AC not cooling?” or “Why is my split system not blowing cold air?” The good news is that some problems can be resolved with quick, easy fixes.

Here are a few easy solutions for common split system heating and cooling issues:

• Check and Clean Air Filters: The first step in any troubleshooting should be to check your air filters. If they’re dirty, give them a clean, or if they’re beyond cleaning, replace them. Clean filters will instantly improve airflow and overall system performance.
• Inspect the Thermostat: Make sure the thermostat is set to the correct temperature and mode (cooling or heating, depending on what you need). If it’s not working properly, replacing the thermostat could be the simple solution.
• Look for Obstructions Around the Outdoor Unit: The outdoor unit of your air conditioner needs clear airflow to operate effectively. Make sure there’s no debris, dirt, or plants blocking the airflow around the unit.
• Call a Professional for Refrigerant Issues: If you suspect low refrigerant is the issue, it’s best to call a professional. Handling refrigerant can be dangerous, and it requires specific tools and knowledge to recharge the system safely.

How Can We Help You?

At ABA Air Conditioning, we specialize in diagnosing and repairing split system air conditioner issues, whether your air conditioner isn’t working, cooling, or heating. Our expert technicians can quickly identify the problem and provide the best solution to get your system running smoothly again.

Whether you need regular maintenance, repairs, or a full system check, we’ve got you covered.

Contact us today to schedule an inspection and get your air conditioning system back on track.

FAQ:

How do I fix my AC not cooling?

Start by checking the air filters and thermostat. Ensure the outdoor unit is unobstructed. If the issue persists, you might need to call a professional to check refrigerant levels or more complex issues.

Why is my split system not blowing cold air?

Common reasons include dirty filters, low refrigerant levels, or a malfunctioning thermostat. Cleaning or replacing filters and checking your thermostat are good first steps.

What should I do if my air conditioner is not heating?

Check if the thermostat is set correctly and ensure the air filters are clean. If the issue continues, it could be due to a faulty reversing valve or low refrigerant, which would require professional help.

Is it worth repairing an old air conditioner?

It depends on the issue and the age of the unit. If your system is over 10-15 years old and requires frequent repairs, replacement might be more cost-effective in the long run.