When the Houston sun starts shining down and the heat settles in, it probably won’t take long until you turn to your AC. You go to your thermostat, set it to ‘cool’, and wait a few minutes… no matter how long you wait, though, you’re not feeling the cool air you were expecting.
Maybe you’re noticing warm air coming from the vents, or maybe there’s no air at all. No matter the problem, you deserve better; here are nine of the most common AC problems that Houston homeowners should check when their air conditioner isn’t cooling the way it should.
Clogged Air Filter
Your AC’s filters play an important role; they keep dust, dirt, and other types of debris out of your air supply before it’s circulated throughout your home. Over time, filters become clogged with all of the airborne particles they’ve pulled out of the air. This causes restricted airflow, making it harder for your AC to move cool air throughout your home.
When air can’t easily make its way through your system, your AC has to work harder and longer to cool your home. Having your filters replaced regularly is an easy, but effective, way to keep your air conditioner working like it’s supposed to.
Frozen Evaporator Coils
Air conditioners use evaporator coils to absorb heat from your home so it can be removed and sent outside. It’s an important part of cooling the home down; they can freeze, though, when airflow becomes restricted or refrigerant levels drop too low.
When ice forms on the coils, your AC can’t absorb heat effectively, which means less cool air reaches your home. As a result, you may notice poor airflow or warm indoor temperatures.
Frozen evaporator coils are a sign of greater damage; we recommend having your system professionally inspected to determine how serious the problem is and to get the proper fix.
Thermostat Issues
Your thermostat is the point of communication between your home and the air conditioner. Indoor comfort depends on your thermostat telling your HVAC systems when to turn on, based on the temperature you’ve selected and the conditions inside your home.
If the thermostat isn’t working properly, your AC may not receive the signal to start cooling. A range of different factors could be at play, such as dying batteries, incorrect settings, faulty wiring, or malfunctioning internal components.
Before assuming there’s a problem with your air conditioner, double-check your thermostat settings and make sure it’s functioning correctly. A small thermostat issue can sometimes create cooling problems that seem much larger than they really are.
Faulty Blower Motor
The blower motor is the part of your air conditioner responsible for pushing cooled air through your ductwork and into each room in your home. If it’s not working right, you probably won’t feel much, if any, air coming out of your vents.
Blower motor issues typically involve electrical components and different moving parts; a professional inspection and diagnosis can identify the problem and prevent additional strain on your HVAC system.
Electrical Failures
Things like internal wiring and electrical connections come together to keep your air conditioner running safely and efficiently. When one of these components becomes damaged, loose, or worn out, it can interrupt the flow of power your system needs to operate properly.
Electrical issues can cause a variety of symptoms, including an AC that won’t turn on, frequent system shutdowns, tripped breakers, or inconsistent cooling performance. Because modern air conditioners rely on multiple electrical components working together, even a minor failure can have a noticeable impact on comfort.
Refrigerant Leaks
Evaporator coils and refrigerant work together to pull heat from your air and replace it with cool, conditioned air. You should always have a steady supply of refrigerant; it shouldn’t run out, because it’s contained within a closed system.
If refrigerant levels are low, there’s usually a leak somewhere in the system. Without enough refrigerant, your AC can’t remove heat effectively, causing longer run times, reduced cooling performance, and higher energy bills. In some cases, low refrigerant levels can even cause your evaporator coils to freeze.
Dirty Condenser Coils
When condenser coils become dirty, they won’t be able to release heat as effectively as they should. Since the condenser coils are responsible for transferring heat from your home to the outdoors, any buildup of dirt, dust, grass clippings, or debris can make the cooling process much less efficient.
As a result, your AC may have to run longer to reach the temperature set on your thermostat. You might notice higher energy bills, reduced cooling performance, or a system that seems to run constantly during hot Houston afternoons.
Blocked Air Vents
Sometimes, it’s something as big as a dresser or a bed; other times, it’s a jacket that accidentally gets tossed over a vent and forgotten about. No matter the cause, blocked air vents can prevent cool air from reaching the rooms where it’s needed most.
When airflow is restricted, your AC has to work harder to maintain the temperature set on your thermostat. This can lead to uneven cooling throughout your home, reduced comfort, and unnecessary strain on your system.
The Age of the System
As air conditioners age, they naturally become less effective, reliable, and efficient. Most homeowners are able to get around 10-15 years out of their ACs before they need to be replaced.
If your cooling system is entering the later years of its expected lifespan, scheduling a replacement before significant signs of problems develop can help you avoid unexpected breakdowns during Houston’s hottest months. Older systems often struggle to keep up with cooling demands, require more frequent repairs, and consume more energy than newer models.
Need an AC Repair in Houston? Call House Pro Air Conditioning
Dealing with cooling system issues? Let House Pro Air Conditioning help. Whether you’re feeling warm air, no air, or anything in between, House Pro Air Conditioning is dedicated to getting things back under control.
Our experienced technicians can quickly identify the source of the problem, explain your options, and get your system running reliably again. Contact House Pro Air Conditioning today to schedule AC repair service in Houston and get back to enjoying a cool, comfortable home.