4 Reasons Why Your Air Conditioner Is Blowing Lukewarm Air

Posted on: 17 August 2018

There's no worse time for your air conditioner to malfunction than right in the middle of summer. If your air conditioner isn't working properly, your house could get warm and stuffy, and you could even see other side effects, like moisture accumulation inside the home. Your air conditioner plays a critical role in your home's well-being, so any potential issues should be addressed immediately.

One of the most frustrating air conditioner issues is when air is coming out of the vents, but it isn't cold. No matter how low you set the thermostat or how hot it gets outside, the air from the vents never seems to cool. There are a few things that could cause this to happen. Some are simple and easy to fix while others are more complex. Below are a few issues that may cause your air conditioner to blow lukewarm air.

1. Your thermostat is set to on. Often, the simplest cause is the most likely one. Before you call an HVAC company, check your thermostat. Is the fan set to on or auto? If it's set to on, the unit will blow air at all times, even if it's not hot outside. If the temperature in the home is below your set temperature on the thermostat, the unit will simply blow air that hasn't been cooled. Change the thermostat to "auto" and then the unit will only blow cool air when it's needed.

2. The filter is dirty. This is another common cause of non-cooled air blowing from the air conditioner. The filter catches dirt from your air. However, if the filter gets too dirty, it blocks air flow and reduces the amount of cool air that flows back into your home. If you notice that the overall air flow from the vents is weak or that ice is forming on your unit, you probably need to change your filter.

3. The condenser or compressor is broken. Both of these parts are critical to your unit's operation. The condenser removes warm air from your home's air. The compressor pushes cold air back into your home. If either of those breaks, you'll have warm air coming through your vents. An HVAC service can inspect your unit and determine if your compressor or condenser is broken.

4. Your unit is low on refrigerant. Your air conditioner relies on a chemical called refrigerant to remove heat from the air and push cool air back into your home. Technically, an air conditioner should never be low on refrigerant. However, it can happen if there is a leak in your unit. An HVAC service can refill your refrigerant to temporarily fix the issue, but they'll also need to find and repair the leak for a permanent solution.

Ready to get your air conditioner back into shape? Check out a website like http://www.robinsonheatingandcooling.com/ today to learn more.