• West Lake Houston Air Conditioning & Heating
  • West Lake Houston Air Conditioning & Heating

Why is my AC Running But Not Cooling in Houston, TX? How Do I Fix My AC Blowing Warm Air?

When you discover that your air conditioner is blowing warm air instead of cold, you know it’s going to be a bad day. During the middle of summer, we greatly depend on our air conditioner to keep our homes and businesses cool, and keep us safe from the heat. When the air conditioner blows warm air, you will need to get to the bottom of the problem fast. An air conditioner can blow warm air for a number of different reasons. West Lake Houston HVAC will walk you through the steps to help you troubleshoot why your air conditioner is blowing warm air.

What Happens if Your Air Filter is Dirty?

One of the common reasons behind a number of air conditioning problems is a dirty air filter. A dirty air filter can cause an air flow restriction which compromises the cooling process. An early symptom of a dirty air filter is warm air blowing instead of cool air. The air filter must be changed out every one to three months to ensure a healthy air flow and ensure the air conditioner runs smoothly.

What Causes an Evaporator Coil to Freeze Up?

An air conditioner will create warm air when the evaporator coils are covered in ice. The air conditioner will develop condensation that by design, will drip into the pan and through a drain. When there is a problem that can cause an air conditioner to run for extended periods of time, the condensation can ice up. When the evaporator coils are iced up, the cooling system can fail to create cool air. Ice can form on the evaporator coils for a few different reasons. The evaporator can freeze due to an air flow restriction such as the air filters, closed air vents, or dirty coils. When the evaporator coils are iced up, you will need to turn off the air conditioner and let the ice thaw. You will need to determine why the ice built up on the evaporator coils to regain cool air to the home.

Wrong Thermostat Setting

An air conditioner that is blowing warm air can be due to a simple problem such as a misplaced thermostat setting. The thermostat may have been adjusted to the “on” setting and even possibly the heat setting. You will want your thermostat setting to cool and on the “auto” setting. If the thermostat is set to “on” the fan will run continuously. The fan will blow air that has not been cooled. The air will be warm when the air conditioner isn’t running a cycle. As a result the home will heat up faster and the air conditioner will run more often. To save energy and reduce the wear and tear on the air conditioner, you will need to keep the thermostat to “auto”.

How Do I Know if My AC is Leaking Refrigerant?

An air conditioner requires refrigerant to create the cool air for the home. When there is a refrigerant leak, the air conditioner cannot make cool air, resulting in warm air coming from your air conditioner. You will need to seek out an HVAC repair service to come and locate the leak and recharge your air conditioner.

Central Air Conditioner Repair, Replacement & More in Kingwood, The Woodlands, Huffman, Spring & Greater Houston Texas

If your air conditioning system is blowing warm air and making the home uncomfortable, contact West Lake Houston HVAC for inspection, central air conditioning repairs, replacements and more.

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