3 Common Problems That Prevents Enough Cooled Air From Coming Out Your AC Vents
You switch on your thermostat and wait for cold air to come out of the vents at a full blast – but only receive a small gust of cooled air. There are a few different problems that can prevent enough cooled air from coming out of your air vents. The problems range from simple fixes to more complicated problems that might require the assistance of an air conditioning repair professional.
Here are a few of the common problems that can prevent sufficient cooled air from coming out of your central air conditioning system.
Dirty Filter or Thermostat on the Fritz
The first places to check are the easiest fixes and items that should be on your regular maintenance checklist for your central air conditioner. Make sure that the air filter is clean and replace the filter if dirty. A clogged air filter will block some of the incoming air so that you don't' receive as much payoff when the cooling system is running.
You also need to check your thermostat to make sure that the settings are set properly and that the device isn't in need of new batteries. Dying batteries can make the functions of the thermostat go out of whack before you can notice any visible changes with the display panel. So the settings might be set properly but read improperly if the batteries are dying.
Stand by your outdoor condensing unit and listen for whether the unit is kicking on properly, which is easiest to tell by the loud whirring of the fan inside. If everything sounds normal but you are still getting improper air flow, you could have low levels of refrigerant.
Refrigerant is basically the fuel that runs your cooling system. The chemical starts off as a gas in the compressor, goes into the nearby condenser coils to change into a liquid, moves through pipes in your walls to the interior air handler, and then into the evaporator coils, which change the refrigerant back to a gas. The evaporator coils become cold during that change and a nearby fan blows warm air over those coils then out through your vents.
Low levels of refrigerant mean that the coils won't become as cold and your system therefore can't cool as much air as normal. The problem is easy to fix for an HVAC technician, like http://www.alliedme.com, who has the license required to both purchase and handle the chemical refrigerant.