It’s summer in Westlake, and your air conditioner is running constantly—but the house still isn’t cooling down. When the AC runs but fails to drop the temperature, it doesn’t just make your home uncomfortable. It also puts stress on the system and drives up your energy bills. If you're adjusting the thermostat and waiting for relief that never comes, you're not alone. This is a common concern for homeowners during the hottest months.

There are several reasons why an AC might appear to be working but isn’t doing its job. Some of these reasons are simple and easy to check, while others can be signs of a deeper issue. Understanding what may be going on behind the scenes helps you take the right steps sooner rather than later, protecting your comfort and your system over the course of the summer.

Common Causes of AC Running but Not Cooling

When your AC runs without cooling, several problems could be to blame. Some of them are minor issues, and others can cause major wear and tear if ignored. Here are the most common reasons Westlake homeowners deal with this exact situation:

1. Dirty Air Filters

Airflow problems often start with the air filter. When it’s clogged with dust and debris, the system can’t breathe, and that restricts the air that passes over the coils. The result is poor cooling performance even if the system itself is running.

2. Refrigerant Leak

If the refrigerant level is low due to a leak, the system cannot absorb and transfer heat effectively. You will likely notice the AC is running for longer cycles but still doesn’t cool your home. Leaks require professional attention to properly locate and seal.

3. Blocked Condenser Unit

The outdoor condenser unit is responsible for releasing heat. If it’s covered in debris, leaves, or weeds, it can’t do its job. Condenser coils will struggle if clogged, and this could impact how efficiently your AC cools.

4. Incorrect Thermostat Settings

Sometimes the problem lies in a setting. If the thermostat is set to “fan” rather than “cool,” it will blow air without actually cooling it. Or if it's located near a heat source, it could be misreading your home’s actual temperature and misfiring.

5. Problem with Electrical Components

Faulty capacitors, worn contactors, or a malfunctioning compressor can cause the unit to run but not cool. These are more complex failures that need to be properly diagnosed by our technicians.

Even one of these issues can create a noticeable change in how your AC behaves. For example, a homeowner in Westlake recently noticed their AC was always on, but the house remained warm in the afternoons. After a quick inspection, it turned out the air filter hadn’t been changed in several months, and the unit was struggling to circulate cool air. Once replaced, the improvement was immediate.

If your system is running and still can’t cool the space like it used to, it’s not something to ignore. Letting the problem drag on could lead to permanent damage or shorten your system’s lifespan.

Signs You Need Professional Assistance

Some issues go beyond basic maintenance and need expert help to correct. If you’re noticing any of the following signs, it may be time to bring in our professionals:

- The AC runs non-stop but never gets below a certain temperature

- Ice forms on the indoor or outdoor AC components

- The airflow feels weak even with the thermostat set low

- The breaker keeps tripping when the system kicks on

- You hear hissing sounds or notice warm air from the vents

These symptoms point to something beyond surface-level problems. Weak airflow could signal a failing blower motor, while ice buildup could point to a refrigerant issue. Unexpected noises may involve damaged parts that are struggling to operate.

Professional AC service in Westlake is about more than just getting cold air again. It’s about protecting your home comfort and avoiding additional expenses down the line. When problems show up, the best move is to act early. That way, you avoid bigger repairs, higher bills, or complete system failure when you least expect it.

Simple Troubleshooting Steps Before Calling for Help

If your AC in Westlake is running but not cooling, there are a few things you can check on your own before reaching out to our professionals. These steps may not resolve deep system issues, but they can help rule out minor causes:

- Change the air filter if it’s dirty or hasn’t been replaced in the last 1 to 2 months

- Make sure the thermostat is on “cool” and the temperature is set a few degrees below room temperature

- Double-check that all vents are open and unobstructed by furniture or rugs

- Inspect the outdoor unit to confirm it’s clear of leaves, weeds, or trash

- Listen for any unusual sounds and pay attention to changes in the airflow from vents

These small checks can sometimes bring noticeable improvement. For example, a resident in Westlake recently called in after noticing the AC wasn’t cooling well. Before the technician arrived, they checked the outdoor unit and found that a stack of forgotten lawn bags had been leaning against it for days. Once the bags were removed and airflow was restored around the unit, performance improved significantly.

While these steps are helpful, they aren’t a substitute for proper diagnosis. If the system still acts up after performing these checks, it’s time to call in our professionals.

When to Consider a Professional AC Service

Troubleshooting can only go so far, especially if your AC shows signs of damage or continued poor performance. If your home remains warm after basic checks or the unit keeps struggling to meet the thermostat setting, there could be larger issues at play. Low refrigerant levels, short cycling, or compressor problems often present mild symptoms at first but can get worse without attention.

Our technicians are trained to spot issues before they get more serious. Even if your system isn’t completely shut down, getting it looked at can help you avoid expensive repairs later. Minor problems like loose wiring or weak capacitors may not be easy to see, but they can quickly lead to bigger headaches during a heat wave.

In some cases, the indoor air handler could be experiencing trouble that triggers low airflow, even though everything looks fine at a glance. Or the ductwork might have leaks that go unnoticed unless a full system inspection is done. When cooling losses keep repeating, a service appointment gives you the best shot at solving the problem for good.

How to Keep Your AC Running Efficiently All Summer

Preventing problems in the future starts with routine care. A regularly maintained AC tends to last longer, cost less to run, and avoid major breakdowns. Once the system gets dirty or parts start wearing down, each summer season adds extra strain. Homeowners in Westlake can take a few steps to help the system stay on track:

- Schedule an annual maintenance check at the start of the season

- Replace air filters routinely to keep airflow steady

- Consider installing a programmable thermostat for better temperature control

- Keep the outdoor unit clear of plants, fencing, or garden tools

- Make sure your attic is properly insulated to reduce heat load

Simple habits like these go a long way. A well-maintained system cycles less often, works more efficiently, and cools your home on hot afternoons without pushing itself too hard.

Regain Your Comfort with Reliable AC Service

When your AC in Westlake is running but not cooling, it’s a clear sign that something’s not right. Whether you’re dealing with clogged filters, a refrigerant leak, or something more complex, quick action makes all the difference. Ignoring these signs can lead to more time without relief and bigger repair bills down the road.

Restoring home comfort doesn’t have to be stressful. With the right support and regular care, your AC can stay reliable through summer and beyond. When the system stops delivering cold air, there’s no benefit to waiting it out. Getting support from experienced technicians can save your system from further damage and keep your home cool when you need it most.

When cooling issues persist, professional help can restore the comfort you deserve. At Fish Premier HVAC, we understand how frustrating it can be when your AC keeps running but fails to cool, so taking action with our AC service in Westlake can help address underlying problems and prevent further damage. For a quick estimate or to book a service visit, please contact us today.