You depend upon your air conditioner to keep your home cool. If your air conditioning isn't keeping things cool, you have a problem on your hands. You need to bring in an expert for a bit of ac repair if your AC isn't pumping out cool air. A few potential causes for this range from do-it-yourself fixes to expert repairs.
The Thermostat Isn't Set Right
The first thing you should check, if you notice that your air conditioning isn't' keeping the house cool, is the thermostat. If your thermostat isn't programmed right, you will not get cool air conditioning out of your system. You may even get lukewarm or warm air blowing out instead.
Check your thermostat, and make sure you don't have it set to Fan instead of AC. Check the temperature setting, and make sure it is cool enough. If your AC is set to 70, and it is 70 outside, chances are, the unit isn't going to blow out cool air. You need to drop your AC to a lower setting.
Check the Air Filter
The next thing you need to do is check the filter for our air conditioning unit. If the filter is filthy, the air will not be able to flow through the filter and into your system. If you can't remember the last time you cleaned the filter, check it and change it. A dirty AC filter can cause a lot of issues with your AC which can be resolved by either cleaning the filter or replacing it entirely.
Your system depends upon refrigerants to function and produce cool air. If there is a leak in the system and refrigerant is dripping out, your system will not be able to produce cool air. If the leak is a slow leak, you may slowly notice your systems start to switch from blowing cool air to warm air.
A refrigerant leak can develop for a number of reasons. Generally, parts just get worn down, and a leak develops. A technician is going to need to find the source of the leak and repair that part of the system. They will then need to clean up the leaking refrigerant and refill the refringent in the system.
Another cause of no cool air coming from your air conditioner could be a motor or fan issue. If the motor or fan isn't working or running right, the air will not move through your system. If no air is moving through your vents at all, then you more than likely have a problem with the fan or with the motor that powers the fan. An ac repair expert is needed to address this issue.
If your AC isn't running properly, start by seeing if the thermostat is properly set, and check and see if the air filter needs to be cleaned or replaced. If that doesn't fix the issue, bring in a professional for more serious diagnosis and ac repair assistance.