How do you know if you need an AC repair or if it’s time to replace the system? What are some common AC problems, and can you diagnose an air conditioner problem yourself? At Midwest Comfort Cooling & Heating, we believe the more you know about air conditioning and heating repair, the more likely you will choose us as your air conditioning service company! Our repair technicians are highly knowledgeable and communicative, so they can help you understand the problem and the best solutions to fix it. They respect your home, ensuring any AC problem will be resolved quickly. 

Common AC Problems and Causes

Many things can go wrong with an air conditioner, and numerous underlying causes exist. Most common air conditioning problems fall into three broad categories.

Not Cooling Properly

Normal wear and tear can affect cooling performance, but a few common issues prevent an air conditioner from maintaining the desired temperature.

• Dirty Filters: One of the most common problems is a dirty filter, which can increase energy consumption, cause frozen evaporator coils, and contribute to unhealthy indoor air. Fortunately, these issues are preventable by cleaning and replacing your AC filter often.
• Refrigerant: Your AC unit may have old, ineffective refrigerant, or coolant may have dissipated or leaked out. An average amount of refrigerant is required for proper cooling performance.
• Sensor Problems: Your air conditioner contains numerous sensors that relay information. Over time, these sensors can send false readings, causing the AC to work less reliably and efficiently.
• Thermostat Issues: Your thermostat may not be correctly reading the accurate air temperature, causing your system to “think” it is running correctly when it is not.
• Drainage Problems: An air conditioner creates condensate that must be drained away to avoid excess moisture, mold, and other problems. AC drains can become clogged with dust, dirt, and rust.
• Dirty Coils: If the condenser coils are coated in dirt or residue, they won’t dissipate heat as effectively. The air conditioner will also work harder to cool your home; when the coils get dirty enough, they won’t reach the desired temperature.

Not Turning On

If your AC doesn’t respond when you turn it on, or the thermostat is programmed to start it, this may be due to one of these reasons:

• Electric Control Failure: Compressor and fan controls can wear out due to overworking, or connections may become corroded.
• Thermostat Failure: Your thermostat can fail for various reasons, preventing a successful connection to your AC.
• Faulty Motor: The AC won’t either if the motor isn’t working. Most of the time, you’ll hear odd sounds before the unit stops working. A capacitor test can determine if the motor is the source of the problem.
• Dirty Condensers: A condenser can become messy, and mold or algae can grow. Twigs and branches may build up on it, or birds may set up a nest. These can all stop your AC from working until you clear away any debris. Make sure the evaporator coils are clean as well.
• Lack of Power: If your AC is not working, it may not get electricity. This can go unnoticed because HVAC units have their circuits. Make sure to check your circuit breaker.
• Wiring Problem: An issue with your air conditioner or other electric appliances can originate with the wiring in your home. Be aware of flickering lights or listen for humming when you plug things in.

Airflow Is Limited

Limited airflow is a common problem for various reasons, some simpler to fix than others.

• Ductwork Issues: Clogged, disconnected, separated, or leaky ductwork can cause airflow problems. Blocked vents and registers can also cause trouble, and pieces of furniture in the way can also limit airflow.
• Dirty Filters: While your AC is not designed to clean air, it uses filters to help remove damaging particles from getting through the system. These filters are designed to be changed frequently.
• Obstructed Condenser: Leaves and debris that pile around the condenser can restrict airflow and cause the system to overheat. Fortunately, you don’t need a professional to clear a space around it.
• Faulty Blowers: Motors control the blower fans. A sluggish motor can limit airflow, or a dirty fan can prevent regular operation.
• Oversized ACs: An oversized unit cycles on and off too frequently, so it won’t run long enough to remove humidity. The lack of airflow can make a room uncomfortable.
• Thermostat Problem: A faulty thermostat can prevent the air conditioning system from blowing enough air. Even an incorrect setting or low battery can limit airflow.

Benefits of AC Repair

Rest assured that when Midwest Comfort Cooling & Heating technicians arrive at your home, their trucks will be stocked with the parts most frequently prone to failure. We carry replacement parts, including blower motors, compressors, wiring, filters, refrigerant tanks and refills, trim kits, and more. Most common AC repairs can be done in one trip. Repairing your AC avoids having to spend on replacing it. It can also save on energy costs because a faulty air conditioner can waste more power while trying to achieve the same temperature. In addition to eliminating power drains, repairs help make your home or office more comfortable. Even a simple tune-up can result in higher efficiency, cleaner air, and improved reliability. At Midwest Comfort Cooling & Heating, we offer unbeatable service plans to ensure your AC gets the attention it needs.

Is Air Conditioning Repair Enough?

Repairing your air conditioning system has many benefits, but it does have its limits. Our service technicians have significant experience with different AC systems and can inform you when more than a simple repair is necessary. Eventually, consider central units to replace your traditional system. It all depends on various factors. So, what should you consider when deciding if an AC repair is “good enough”? Keep in mind the following factors:

• The age of the unit: As your AC unit edges toward 20 years old, it is likely reaching the end of its lifespan.
• Energy efficiency: Once units reach 15 years of age, they should be considered a candidate for replacement based on energy savings alone.
• Frequency of repairs: Frequent repairs can be frustrating and expensive and create an uncomfortable, warm home.

Why Contact Midwest Comfort Cooling & Heating for Your AC Repair?

With Midwest Comfort Cooling & Heating, you always have the final say on your air conditioning repair or replacement. Our HVAC contractors will offer the best diagnosis of your AC unit, and they will take all the necessary steps to keep it running as efficiently as possible. They will guide you through your options and probable outcomes. At Midwest Comfort Cooling & Heating, we offer emergency service on AC repairs, whether you have a traditional, rooftop, or ductless system. Finance plans can help you afford efficient top-of-the-line systems if a replacement is necessary. Our warranty is the best business and provides additional peace of mind.

Most Common AC Repair FAQs

How often should a home AC unit be serviced?

You should schedule maintenance for your air conditioner in spring and fall. This biannual schedule ensures reliable operation through the summer and helps identify and repair any damage at the end of the cooling season.

Will maintenance improve system performance?

Yes! Preventative maintenance protects your system from sudden malfunctions, improves efficiency, and provides cost-effective operation. Regular maintenance can significantly reduce your monthly utility bills and enhance your comfort.

Do air conditioners need annual maintenance?

Absolutely. Regular maintenance reduces the need for costly repairs or replacements. Annual AC maintenance includes cleaning the air conditioner coils, straightening the coil fins, clearing condensate drains, and other critical tasks.

How long do AC units last in Highland Park, IL?

Older air conditioners typically provide 10 to 12 years of reliable operation, while newer, modern systems may last 15 to 20 years. Longevity depends on design and manufacturing quality, regular maintenance, and prompt repair of any issues.

Will my warranty cover repairs/replacements if I fall behind on maintenance?

Falling behind on maintenance may void your warranty if your system malfunctions. We strongly recommend adhering to manufacturer recommendations and maintaining detailed records of all maintenance services.

For dependable AC repair in Highland Park, IL, trust Midwest Comfort Cooling & Heating. Call us today at (847) 338-2777 to schedule an appointment and experience the professional difference. Our team is committed to keeping your home comfortable year-round with top-notch AC repair services.