They are cheaper on the energy bill in most cases. Therefore, another benefit of upgrading the entire unit would be an improvement in energy efficiency. The last factor I want to mention is the performance of the current air conditioner. Today's newer air conditioners are more efficient than older models.
This would generate dividends over the life of the unit. However, if the compressor is still under warranty, replacing it may be the best option, depending on labor costs and other important factors. If the air conditioning compressor of an older (almost 10 years old) air conditioner breaks down, it would be advisable to replace the entire unit. Air conditioning compressors are responsible for the heat transfer processes that produce cold air in the home.
