There are different types of air compressors out there, though the most common being the rotary air compressors. In order for this rotary-type positive-displacement mechanism to work, it requires quality parts and constant maintenance. One of the most common reasons why compressors fail is due to parts of your compressor wearing out. On the chance that this occurs, you would have to replace these parts rather than getting rid of your air compressor altogether. But in order to do so, you would primarily need to know what those parts are and what they do.
infographic by: www.compresstech.com.ph