What to Do When Your AC Unit Starts Blowing Warm Air

Floyd Hudson

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What to Do When Your AC Unit Starts Blowing Warm Air

When your AC unit starts blowing warm air, check the thermostat settings and make sure it is set to cool mode and the temperature is lower than the room temperature. A properly functioning AC unit is essential for keeping your home cool and comfortable during the summer months.

However, there may be times when your AC starts blowing warm air instead of providing the cool relief you need. This can be frustrating and inconvenient, but there are a few steps you can take to troubleshoot the issue and potentially resolve it on your own.

By following some simple guidelines, you may be able to identify the problem and get your AC unit back to producing the cool air you desire. We will discuss some things to check and steps to take when your AC unit starts blowing warm air.

Check Thermostat Settings

To troubleshoot warm air coming from your AC unit, start by checking the thermostat settings. Ensure it is set to the correct cooling mode and adjust the temperature if needed.

To troubleshoot your AC unit when it starts blowing warm air, begin by checking the thermostat settings. Ensure that the thermostat is set to the cool mode and that the temperature setting is lower than the current room temperature. If the settings are incorrect, adjust them accordingly. If the issue persists, proceed to the next step.

Inspect Air Filter

When your AC unit starts blowing warm air, one of the first things you should do is inspect the air filter. Start by locating the air filter in the AC unit. Once you’ve found it, assess the condition of the filter. If it appears dirty or clogged, it’s time to replace it with a new one.

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Regularly replacing the air filter helps maintain proper airflow and prevent the unit from blowing warm air. However, if the filter is still in good condition, you can clean it if it’s reusable.

Cleaning the air filter ensures that it remains free from debris and allows for better air circulation. By inspecting and maintaining the air filter, you can help ensure that your AC unit continues to blow cool air effectively.

Examine Outdoor Unit

When your AC unit starts blowing warm air, it can be frustrating and uncomfortable. One of the first things you should do is examine the outdoor unit. Start by inspecting it for any obstructions. Remove any debris such as leaves, branches, or grass that may have accumulated around the unit.

Additionally, clear away any blockages that may be hindering airflow. This can help improve the unit’s efficiency and cooling performance.

Check Power Supply

When your AC unit starts blowing warm air, one of the first things you should check is the power supply. Confirm that the AC unit is receiving power by checking the electrical connections. Ensure that they are secure and not damaged. If you find any loose or damaged connections, fix them immediately.

In some cases, the circuit breaker may have tripped, causing the AC unit to stop working. If this is the case, reset the circuit breaker and see if the AC unit starts blowing cool air again.

Assess Refrigerant Levels

Assessing the refrigerant levels of your AC unit is crucial when it starts blowing warm air. Begin by inspecting the refrigerant levels to identify any leaks or low levels. This can be done by examining the pressure gauge or sight glass on the AC unit.

If you notice any signs of leakage or low refrigerant levels, it is essential to contact a professional. Handling refrigerant-related issues requires expertise and specialized equipment, so it is best to leave it to the professionals.

  • Assess Refrigerant Levels
  • Inspect refrigerant levels
  • Identify any leaks or low levels
  • Contact a professional to handle refrigerant-related issues
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Evaluate Condenser Coils

One of the common issues with an AC unit is it starting to blow warm air. When this happens, it is important to evaluate the condenser coils. One of the possible causes for warm air is dirt or debris buildup on the condenser coils.

Carefully examine the coils and if you spot any dirt or debris, clean them using a soft brush or a specialized coil cleaner. Make sure to be gentle while cleaning to avoid damaging the coils. Cleaning the condenser coils can improve the airflow and restore the cooling functionality of the AC unit. Regular maintenance and cleaning of the condenser coils can also help prevent the recurrence of this issue in the future.

Verify Evaporator Coils

When your AC unit starts blowing warm air, the first thing you should do is verify the evaporator coils. Check the coils for any frost or ice buildup. If you see any, you need to defrost the coils. To do this, leave the AC unit off for a few hours or until the ice has melted completely.

Next, inspect for any blockages or restrictions in the airflow. Make sure there are no objects blocking the air intake or obstructing the vents. Clear away any debris or dirt that may be preventing proper airflow.

If the problem persists after these checks, it’s best to call a professional HVAC technician to diagnose and fix the issue. They will have the expertise to delve deeper into the system and identify any other potential causes for the warm air blowing from your AC unit. Regular maintenance and keeping your AC unit clean and free from debris will help prevent future issues.

Assess Ductwork

If your AC unit starts blowing warm air, one of the first things you should do is assess the ductwork. Inspect the ductwork thoroughly for any leaks or damage. If you find any holes or gaps, make sure to seal them properly. Utilize foil tape or mastic sealant for airtight repairs.

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Ensuring that the ductwork is in good condition will help prevent warm air from entering the system and ensure that cool air is distributed efficiently throughout your home.

Call For Professional Help

If troubleshooting steps fail to resolve the issue, it is recommended to seek professional assistance from a licensed HVAC technician. AC units can experience complex problems that may require expert knowledge and skills to fix.

Professional technicians have the experience and expertise to diagnose the issue accurately and provide the most appropriate solution. They are equipped with the necessary tools and equipment to handle repairs safely and efficiently.

Attempting to fix complex AC problems without professional help can lead to further damage and even pose safety risks. Trusting the expertise of licensed professionals ensures that your AC unit is repaired correctly, restoring its functionality and ensuring your indoor comfort.

Frequently Asked Questions

Why Is My Ac Unit Blowing Warm Air Instead Of Cold Air?

There could be several reasons for your AC unit blowing warm air, including a refrigerant leak, a dirty air filter, or a malfunctioning compressor.

How Can I Troubleshoot My AC Unit If It’s Blowing Warm Air?

Start by checking the thermostat settings, cleaning or replacing the air filter, and inspecting the outdoor unit for any debris or obstructions. If the issue persists, it’s best to call a professional HVAC technician for further diagnosis.

Is It Possible To Fix The AC unit Blowing Warm Air On My Own?

While some minor issues like a dirty air filter can be resolved by homeowners, it’s recommended to leave complex AC repairs to professionals. Attempting to fix it yourself may lead to further damage and even risk your safety.

Is Warm Air Coming from My AC Unit a Symptom of a Larger Issue?

If your Fujitsu air conditioner is not blowing cold air, warm air may be a symptom of a larger issue. It could indicate problems with the compressor, refrigerant levels, or airflow. It’s best to have a professional inspect and repair your unit to ensure it’s working efficiently.

Conclusion

To summarize, when your AC unit starts blowing warm air, it’s crucial to troubleshoot the issue promptly. By following the tips mentioned in this blog post, such as checking for a dirty filter, adjusting the thermostat, or seeking professional help, you can restore the cool and comfortable environment in your home.

Remember, regular maintenance and timely repairs are key to keeping your AC unit in top shape and ensuring optimal functionality. So, don’t hesitate to take action when faced with this problem. Stay cool and enjoy the refreshing air!

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About the author

Hi, I'm Floyd Hudson. I've been working as an AC specialist since 2005. I'm here to share my experience and knowledge about AC and I will make sure everything I write is true.

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