Compressor failure is a frequent occurrence that is encountered by technicians in the hvacr field. Following is a partial list of some common causes of compressor failure:
• Liquid wash out.
• Liquid dilution of lubricant.
• Lack of lubrication.
• Liquid slugging.
• Single phasing.
• Faulty contactors (relays, etc.).
• High compression ratios.
• High discharge temperatures.
• Operational control adjustment.
• Operational control override.
• Under/over charging.
• System voltage problems.
• System component failure.
• Safety control override.
• Environmental conditions.
• Energy management systems.
• Improper cleanup or prior change-out.
Source: International Compressor Remanufacturers Association and John
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