If you turn on your air conditioner one hot day and find that it’s blowing warm air, don’t panic. The problem might not require the help of an HVAC technician, though don’t hesitate to call one if you must. Sometimes, a nonprofessional can pretty easily fix the problem of no cool air. Keep reading to learn about some simple tasks you can do yourself.
Clogged Air Filter
One of the reasons that your AC is blowing warm air is that the air filter is clogged with dirt and debris. Indeed, the AC filter can become so filthy that it shuts the system down. Either clean your filter if it’s the kind that can be washed or replace it. Air filters are easy to replace and inexpensive, and you can find them in hardware and big box stores and online.
Wrong Thermostat Setting
The wrong thermostat setting can cause an air conditioner to blow warm instead of cool air. During the cooling season, make sure the setting is on “cool,” and the thermostat is set to the right temperature. It also might have been put on the fan setting by accident. Sometimes the fan setting is just the “on” switch, and the user might have thought they were setting the system to cool. If you’re having a new thermostat installed, make sure it’s out of direct sunlight and not placed in a room that gets hot, such as your kitchen.
Debris Blocking the Condenser
Your air conditioner might not be running because its outside condenser is blocked with debris. If there’s so much debris that air can’t flow properly, your AC will not only blow warm air into your home, but it will work too hard to do so. This raises your energy bills and shortens the unit’s working life. Remove all debris from in front of the condenser and use a garden hose to clear it out.
Dirty and/or Obstructed Vents
The AC may also be blowing warm air because the vents in your home are dirty or covered by furniture. Make sure that furniture is clear of your vents and keep the vents clean. All this requires is a good vacuuming now and then. Your ducts may also have leaks, which can suck dirt into them.
In the End, Call Us If DIY Doesn’t Do It
Sometimes, problems with your AC that cause it to blow warm air are easy fixes. At other times, you really do need to call in a professional. For an AC installation in Charlotte, NC, get in touch with our professional technicians at Dilling Heating, Cooling, Plumbing & Electrical.
