When your air conditioner isn’t working properly, it is normal to question whether you can fix it yourself or if you need to call a technician. Some problems are easy to handle, but others are not. Knowing which is which can help you save your time and money.

Below, this AC repair company in Darien, Illinois is going to explain some basic checks you can do on your own, and we’ll also explain when it’s best to call a professional.

Try these simple checks first.

Start with the basics. These steps are safe and can be completed in only a few minutes.

Check the thermostat first. Make sure it is set to “cool” and not accidentally switched to “heat” or “off.”

Look at your breaker panel next. A tripped breaker can shut down your AC, especially after a power surge or storm. If the breaker has flipped, try resetting it.

Check the air filter as well. If it is dirty, replace it. A clogged filter blocks airflow and makes the unit work harder. It can also let dirt build up inside, which can reduce cooling efficiency and wear out your unit faster. A clean filter helps your AC run better and can even lower your AC’s energy consumption by 5‑15%.

Finally, check the outdoor unit. If there are leaves, grass, or other debris around it, remove them. Blocked airflow can cause your AC to overheat and impact its performance. That could result in higher energy bills and possible damage to the unit.

Know when to stop and call a professional.

Some AC problems are too risky or complicated to handle on your own.

If the AC is running but not cooling, or if you see ice on the indoor coil or outside unit, it could be a refrigerant leak. Handling refrigerants is not safe without training. They can be toxic, flammable, and even illegal to manage without certification. 

Unusual sounds are another warning sign. A loud hum may indicate that the compressor is malfunctioning. Banging or clanking could point to loose or broken parts. These are not things you can fix with household tools.

If you notice water pooling indoors, you may have a clogged drain or a cracked pan. Ignoring this problem can lead to mold or water damage.

If your unit keeps turning on and off too quickly, it is short cycling. This is when your AC can’t complete a full cooling cycle. Short cycling can damage the compressor and increase your utility bills.

These are all signs that require the services of a licensed technician. A professional AC repair company in Darien, Illinois can find the root cause and make the necessary repairs.

Doing it yourself can sometimes be more expensive.

Trying to fix the wrong problem can backfire. For example, if you cause damage while trying to repair your AC, you could void your warranty. If that happens, you will be on your own for future repairs or parts replacement.

There is even the risk of injury. Working with refrigerants and electrical components can be dangerous, as mistakes can cause electric shocks or fires.

The smartest choice is to know your limits. If a problem seems unfamiliar or keeps recurring, just call a trained technician instead of trying to handle it on your own. A professional AC repair company in Darien, Illinois can inspect your unit, explain the problem, and get everything working properly and safely.

Looking for an AC Repair Company in Darien, Illinois?

Are you searching for a professional AC repair company in Darien, Illinois that can fix your AC problems? If so, look no further than Hearthstone Heating & Air Conditioning. Our technicians can troubleshoot your AC and get it running efficiently and safely again. Contact us today at (630) 435-9800 to discuss your needs.