Is your AC acting unusual? Chances are, it’s trying to tell you something.

The warning signs of an air conditioner’s problem can tell a lot about the sort of issue the system is afflicted with. Whether it’s peculiar noises, leaks, freezing up or another ailment—it all points to a particular culprit and requires a distinct remedy. By knowing the specific symptoms, it's possible to narrow down the potential causes of the problem and determine the best course of action for repairing the unit.

While the symptoms are often distinct, many cooling system issues stem from problems that can be avoided by scheduling annual air conditioning maintenance. That’s because a routine Air conditioning maintenance call includes an inspection and cleaning of your system, as well as locating any parts that may be wearing out and need replacement or repair. This helps locate potential problems before they cause equipment failures or other issues.

Here are a few of the typical AC problems and the signs you may see:

Why Do AC Systems Leak?

A cooling system leaking water can be a frequent issue. One of the most common causes of an air conditioner leak is a blocked condensate drain line. The condensate drain line is responsible for removing unwanted moisture from the air conditioning system. When this line becomes plugged with dirt, dust or mold, water can back up and start to come out of the unit.

Another typical explanation for water leaking from an air conditioner is a damaged or rusted drip pan, which can allow water to overflow and leak out of the unit. Additionally, a refrigerant leak or a malfunctioning pump could also cause water to leak from an AC unit.

It's necessary to address a leaking air conditioner promptly to reduce the amount of damage to your home and make sure that your air conditioning system is running efficiently. Professional air conditioner maintenance, including replacing the air filter, examining the condensate drain line and inspecting the unit for damage can help prevent leaks from happening.

Why Does My Air Conditioner Freeze Up?

If your air conditioner is freezing up, it may be because of a variety of reasons. One typical cause of a frozen air conditioner is restricted airflow, which can be caused by a plugged air filter, obstructed ductwork or closed vents. This leads to a buildup of chilled air in the evaporator coil, causing it to freeze.

Another reason your air conditioner is frozen might be reduced refrigerant levels, which can cause the evaporator coil to become really cold and freeze. Leaking ducts or damaged insulation can also lead to the buildup of frosty air and cause the evaporator coil to freeze.

To fix a frozen air conditioner, it's important to power down the air conditioning so that it can thaw completely. When the system has thawed, assess the air filter, ductwork and refrigerant levels to see if something is broken. Regular maintenance, including exchanging the air filter and having the system inspected annually by a professional.

Why Does My Air Conditioner Make So Much Noise?

If your air conditioner is making loud noises, it may be a sign that your AC needs service. One common cause of a loud air conditioner is a damaged fan motor or a worn-out fan belt. The noise might also be caused by loose parts such as screws, bolts or bearings, which can cause vibrations and rattling sounds.

A noisy air conditioner also might have a dirty condenser coil, which can obstruct airflow and cause the system to work harder, resulting in greater noise. Similarly, a defective or old compressor can also be a reason you hear loud noises from the air conditioner.

Why Is My AC System Not Blowing Cold Air?

One common cause of an air conditioner not producing cold air is a clogged air filter. A dirty air filter limit airflow, causing the evaporator coil to become very cold and freeze, resulting in not enough cool air. Another possible reason for this problem is a refrigerant leak.

Low refrigerant levels may also cause the evaporator coil to become too cold and freeze, resulting in a lack of cool air coming from your AC. In addition, a faulty compressor or motor can also cause an air conditioner to not produce cool air. To rectify this particular problem, it's important to check the air filter and exchange it if necessary.

Why Can't My Air Conditioner Run or Even Turn On?

A home cooling system might not start up because of a tripped circuit breaker or blown fuse. To repair this, inspect the electrical panel and reset any tripped breakers or switch out any blown fuses.

The source of the issue also could be a malfunctioning thermostat, which can prevent the air conditioner from starting. In this case, check the thermostat and substitute it with a new one, if necessary. In addition, a malfunctioning compressor, motor or capacitor can stop the air conditioner from turning on. To address this issue, it's best to get in touch with a professional to inspect and fix the unit.

Should My Air Conditioner Be Making a Loud Noise?

In addition to the problem of air conditioners running louder than they are supposed to, sometimes they also make strange noises.

One common cause of weird noises is a malfunctioning fan motor or a worn-out fan belt. These two dilemmas can cause scraping, squealing or grinding noises. One other commonly observed cause is loose parts such as screws, bolts or bearings.

Additionally, a blocked air filter can cause an AC to make whistling or wheezing noises, while a refrigerant leak can produce hissing or bubbling noises.

As with a lot of air conditioner woes, the root cause of uncommon noises is often something that can be reduced by regular air conditioning maintenance.

Get in Touch with Our AC Experts at B & B Heating & Cooling

If your air conditioner is having trouble, reach out to the professionals at B & B Heating & Cooling for quality air conditioning repair in Florissant and St. Charles. Whether it’s a weird noise, a leak or another problem, our skilled team members can get your unit back up and running fast!

If your AC has a chronic issue and requires constant or very expensive repairs to keep it going, it may be more convenient to replace your aging AC rather than constantly pay for repairs. If your home needs air conditioning installation in Florissant and St. Charles, the top-notch crew at B & B Heating & Cooling can help guide you through the process.