The way your air conditioning unit dries your home or office area is by removing moisture present in the air. That must go somewhere! The moisture is flushed out through its condensation on the cold refrigeration coils and then allowing it to run down a drain pan.
Most air conditioning systems make use of a PVC pipe to drain out the water to a floor drain or sink. Often the problem is the accumulation of dirt. It will clog the drain line and also clog the pan. This problem will eventually crop up in your air conditioning system, unless it is taken care of in time. This may make a terrible mess of the whole cooling process and make it seem like your system is losing efficiency. It really is not the case. The problem is rather quite easy to fix.
Just take a wet dry vacuum to clean up the unit’s drain line. In a majority of cases, this will be enough to fix the problem. If the drain pan has become really dirty, you will need to take the covers off the air conditioning unit and then vacuum it out. In some cases you may even have to make use of compressed air, nitrogen or CO2 so as to blow out the drain line to clear the dirt.