How to Stay Cool & Solve Common AC Problems

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On days that endlessly sizzle, there’s nothing more essential than a well-functioning AC to keep your home cool and comfortable. However, even the most reliable air conditioning units can encounter issues. Before you reach out to our professional HVAC contractor in Michigan, Indiana, Ohio, and Florida, there are a few troubleshooting steps you can take on your own though we do urge you to be cautious and not attempt any fix outside of your skillset.

Here’s a quick run-through of how to approach some of the most common AC problems.

1. AC Not Cooling Properly

Check the Thermostat

It might sound obvious, but double check that your thermostat is set to “cool” and at the desired temperature. Sometimes, it might unknowingly be set to “heat” or the fan might be “on” instead of set to “auto”, causing the AC to not cool as expected.

Clean or Replace Air Filters

Dirty or clogged air filters can significantly affect the efficiency of your central air conditioner. Inspect your filters and replace them if they’re dirty. This simple step can improve air flow and cooling performance. Keep the clean air coming and extend your unit’s lifespan by scheduling annual air conditioning maintenance with our local HVAC technicians.

Inspect the Outdoor Unit

Your outdoor unit is well, outdoors, which means that debris like leaves, dirt, or grass can cause obstructions. Ensure the area around the unit is clean and free of bits to allow proper airflow.

2. AC Not Turning On

Check the Power Supply

Make sure your AC unit is properly plugged in and that there’s power to your home. Check the circuit breaker and ensure it hasn’t tripped. Reset it if necessary.

Examine the Thermostat

Sometimes the issue lies with the thermostat itself. Make sure it’s working properly and has fresh batteries if it’s battery-operated. Need an AC inspection? Our team would be happy to come out and take a closer look at how your thermostat is functioning.

Inspect the Condensate Drain Line

A clogged condensate drain line can cause the AC to shut off. Check for any blockages and clear them if necessary. Using a wet/dry vacuum to remove any clogs is completely fine in this situation.

3. AC Blowing Warm Air

Look at the Thermostat Settings

As mentioned above, verify that the thermostat is set to a cooling mode and the temperature is set lower than the current room temperature.

Clean the Condenser Coils

Dirty condenser coils can result in an AC blowing warm air. Turn off the power to the unit and gently clean the coils using a garden hose. Avoid using high-pressure water, which can damage the coils.

Check Refrigerant Levels

Low refrigerant levels can also cause a warm air issue. While this often requires the expertise of a professional AC contractor, you can check for visible signs of a refrigerant leak such as ice on the refrigerant line or hissing noises.

4. AC Making Unusual Noises

Tighten Loose Components

Over time, components within your AC unit can become loose, causing rattling or banging noises. Inspect the unit for any loose screws or parts and tighten them as necessary.

Check the Fan Blades

Fan blades can become bent or misaligned, causing noise. Turn off the unit and inspect the blades, carefully straightening them if needed.

Lubricate Moving Parts

Some older AC units require regular lubrication of moving parts. Check your unit’s manual to see if this is necessary and apply lubricant as directed. At Whitney Services, we do offer AC installation so if you feel it’s time to move on from an older model, we can help!

5. AC Leaking Water

Clear the Condensate Drain Line

A clogged drain line is a common cause of water leaks. Use a wet/dry vacuum to clear any blockages and ensure water can flow freely.

Inspect the Drain Pan

Over time, the drain pan can crack or become damaged, leading to leaks. Inspect the pan and replace it if necessary.

Check for Refrigerant Leaks

Refrigerant leaks can also cause water to pool around your AC unit. If you suspect a refrigerant leak, it’s best to call our professional technicians so we can handle the repair.

Get Professional HVAC Assistance

While many common problems can be resolved with these DIY steps, some issues require that our AC contractor in Michigan, Indiana, Ohio, and Florida be there to help. If you’ve tried troubleshooting and your AC is still not functioning correctly, it’s time to call Whitney Services today at (877) 393-2141 or contact us online to request a quote. We’re ready to diagnose and repair any issues, ensuring your home stays cool and comfortable all summer long!

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