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A-1 Mechanical Blog

Why Is My Air Conditioner Running, but Not Cooling the House?

AC System

It seems like each summer is hotter than the last. Brutally hot summers make air conditioning a necessity. Before summer starts, turn on your air conditioning system to make sure it runs and is efficiently cooling your home.

A common issue the technicians at A-1 Mechanical frequently see during the summer months is an AC that is running but not cooling the house down. If this is the case, A-1 Mechanical has a few steps you can try to make your home cool again. In our most recent blog, we’ll explain what you can do yourself and when it’s best to call a professional HVAC company.

Troubleshooting Your AC Problems

If your air conditioner is running but not cooling your house, doing a little poking around yourself might just solve your problem without calling an HVAC company. Even if you can’t fix it, you can save your technician a lot of time by telling them what you’ve tried already.

Thermostat Set Incorrectly

This might seem silly, but it happens all the time. Make sure your thermostat is set to “cool” and is set at the desired temperature. Sometimes people accidentally turn the fan on but don’t turn the air conditioner on. This won’t cool your house.

Dirty Air Filter

This is one of the most common causes for a system that is running but not providing any cooling. On your air conditioner, there is an air filter that catches dust, dirt, and airborne particles. If your HVAC filter is clogged, it can restrict the airflow to the air conditioner. Replacing the filter might be the solution.

Frozen Air Conditioner

If you’ve replaced the filter and are still not feeling cold air, then peek inside your air conditioner. If you find ice or condensation, then your air conditioner might be frozen. There are a few reasons as to why this could happen. Turn off the air conditioner and melt the ice before you call a technician. You can do this by turning on only the fan on the air conditioner or using a hairdryer to speed the process along. Once the ice is melted, try running the AC again.

When to Call an HVAC Technician

Did you try all those steps and still don’t have relief? Then it’s time to call an HVAC system technician. Here are a few other common problems that are best solved by A-1 Mechanical’s air conditioner service team.

Condenser Unit Is Blocked

A dirty or clogged condenser can also cause an AC system to run but not provide cooling. The condenser is a coil that pulls heat energy out of your home. These can get clogged with dirt, grass, and other airborne debris. It’s best to let a technician properly clean the coil to ensure no accidental damage.

Refrigerant Leak

Refrigerant is a chemical that cools the air before it’s transmitted into your home. It is not like the oil for your car that needs to be replaced regularly, but if it does start leaking, it could cause problems. An AC technician will be able to refill your refrigerant to proper levels and stop any leaks.

Do I Need to Replace My Air Conditioner?

Don’t fret if your AC unit is running but not providing cool air. The best indication for replacing your air conditioner is the age of your unit. Because air conditioners are outside, they have a shorter lifespan than furnaces and usually last about 15-20 years. If your air conditioner is older than that, you might want to consider an upgrade.

Call A-1 Mechanical to Stay Cool This Summer

The best way to make sure your air conditioner keeps you cool is by having it inspected and cleaned in the spring. An A-1 technician will be able to replace any defective parts and let you know if you’re due for an upgrade. Call A-1 Mechanical today to schedule your seasonal AC checkup.

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