What to Do When Your AC Stops Cooling

October 3, 2024

An AC that suddenly stops cooling can be a huge headache, especially during the hot summer months. There's nothing more frustrating than coming home to find that your once cool and comfortable house is now warm and stuffy. Before you panic, there are a few steps you can take to try to get your AC up and running again.


First, remember to stay calm and take it one step at a time. Sometimes the issue can be a simple fix, like adjusting the thermostat settings or changing a clogged air filter. Other times, there might be a problem with the outdoor unit that needs a quick check. By following a few basic troubleshooting steps, you can often identify and fix the problem yourself.


However, if you've gone through the essential checks and your AC still isn't cooling, it might be time to call in the experts. Professional HVAC technicians have the skills and tools needed to diagnose and repair more complex issues. But before you reach that point, let's go over some steps you can take to troubleshoot your AC system.


Check Your Thermostat Settings


The first thing you should do when your AC stops cooling is to check the thermostat settings. Sometimes the issue is as simple as the thermostat being set incorrectly. Make sure the thermostat is set to "cool" mode and that the temperature setting is lower than the current room temperature. It's easy to overlook these settings, especially if you've recently had a power outage or someone else has adjusted them.


Here's a checklist to help you verify your thermostat settings:



1. Ensure it's on "Cool" Mode: Sometimes the setting can inadvertently be switched to "heat" or "fan" mode.

2. Check the Temperature Setting: Make sure it's set to a cooler temperature than the room. Adjust it a few degrees lower to see if the AC kicks on.

3. Replace Batteries: If your thermostat is battery-powered, check if the batteries need replacing. Low power can affect performance.

4. Reset the Thermostat: Try resetting it by turning it off and on, or referring to the manual for a proper reset.


By verifying the thermostat settings, you can rule out simple errors and potentially solve the cooling issue without any additional effort.


Inspect and Clean Your Air Filters


Air filters play a vital role in your AC system's performance. When the filters are dirty or clogged, they obstruct airflow, making it difficult for your AC to cool your home effectively. It's important to inspect and clean or replace your air filters regularly to ensure optimal performance.


Follow these steps to inspect and clean your air filters:


1. Locate the Air Filter: Filters are typically found in the return air duct or near the air handler unit.

2. Remove the Filter: Carefully take out the filter to inspect it.

3. Examine the Filter: If you see a lot of dust and debris, it's time to clean or replace it.

4. Clean or Replace: For reusable filters, use a vacuum or rinse with water to clean it. For disposable filters, replace them with new ones that match the size and type.


Regularly checking and maintaining your air filters not only helps with cooling but also improves the air quality in your home. This simple maintenance can prevent bigger issues down the road and help keep your AC running smoothly.


Examine the Outdoor Unit


Your AC's outdoor unit, also known as the condenser, is crucial for cooling. If it's dirty or obstructed, your system can't work properly. It's worth taking a few minutes to check on it and clear any debris.


Here's a simple guide for examining the outdoor unit:


1. Clear Debris: Make sure there are no leaves, grass, or other debris accumulated around the unit. This can affect airflow.

2. Check the Fins: Look at the metal fins on the sides. If they're bent or dirty, gently clean them or straighten them with a fin comb.

3. Inspect the Coils: Dirty coils can also hinder performance. Using a garden hose, gently spray the coils to remove dirt and grime. Avoid using high pressure which can damage the unit.

4. Ensure Proper Clearance: There should be at least two feet of clear space around the unit. Trim back any overgrown plants or bushes.


Taking care of the outdoor unit ensures that your AC can release heat efficiently, helping it cool your home better. A clean and unobstructed unit can significantly improve your system's performance.


Call a Professional HVAC Technician


If you've checked your thermostat, air filters, and outdoor unit but still notice that your AC isn't cooling, it might be time to call in a professional. An HVAC technician has the training and tools to diagnose and fix more complex issues that you might not be able to handle on your own.


Here are scenarios when calling a professional is necessary:


1. Unusual Noises: If your AC is making strange sounds, such as banging or buzzing, it could be a sign of a serious problem.

2. Leaking Fluids: Any signs of leaks around your unit, whether water or refrigerant, indicate a problem that needs expert attention.

3. Electrical Issues: If your AC isn't turning on at all, or if it frequently trips the circuit breaker, an HVAC technician should inspect it.

4. Cycling On and Off: Rapid cycling can damage your system and increase your energy bills. This behavior needs professional diagnosis.


Professional technicians can evaluate your system, identify the root cause of the issue, and perform the necessary repairs to get your AC back to working condition. Regular maintenance by experts also helps prevent future breakdowns and extends the life of your system.


Conclusion


Dealing with an AC that stops cooling can be stressful, but following these steps can help you troubleshoot and potentially fix the problem. Start by checking your thermostat settings, inspecting and cleaning your air filters, and examining the outdoor unit. If those steps don't resolve the issue, it's time to call in the experts.


At Anytime Heating & Air, we understand the urgency of getting your AC back to working order, especially during the hot summer months. Our experienced team is ready to provide you with top-notch service to ensure your home stays comfortable year-round. Don't let a broken AC ruin your day—contact Anytime Heating & Air today for professional and reliable HVAC services in Owensboro.

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