When an air conditioning unit is not functioning properly, one of the problems could be that it is low on refrigerant or coolant. However, just adding coolant is not enough to solve the problem because someone who is not a professional could add too much or too little, causing even more problems. Instead, a professional technician should be contacted so that he may repair leaks, add the correct amount of coolant and test the system.

One of the most important parts of servicing an air conditioning system is cleaning all of its components. Fins on the compressor are easily blocked and bent, so they must be either cleaned or replaced often. Purchasing a "fin comb" will comb fins to their original position, and keeping brush away from the compressor will optimize functionality.

Air flow is blocked if filters are clogged and dirty. If clean air cannot pass through a filter, it will pass directly to the system's operating coil, which hinders a unit from functioning properly. Air full of dirt keeps heat from being absorbed and cooled, which means not enough cool air is flowing through the vents into a home or building.

Some filters can just be cleaned and reused. Others are disposable and must be replaced. Either way, filters must be cleaned or changed every couple of months.

It is often best to have a professional technician come check the air conditioning system's air ducts because they have the proper supplies and technicians. It is important that duct leaks are air tight to avoid wasting money and energy.

One problem more detrimental than air leaks in ducts is the temperature difference between ducts and attics. Having heavy insulation around attic ducts is extremely important to prevent overusing an air conditioning system. It is also important to allow air to flow freely from vents, keeping furniture and drapes away from them.

Saving money and being more comfortable means you will have to seal, clean, insulate and service an air conditioning unit annually and monthly.

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