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Why Compressors Fail: Diagnosis, Replacement & Prevention

In this comprehensive HVAC training video, we explore why compressors fail and provide expert guidance on diagnosis techniques, replacement procedures, and prevention strategies to avoid costly callbacks.

Key Topics Covered:

  • Main causes of compressor failures
  • Acid contamination and why “ACID-AWAY” products don’t work
  • Proper acid cleanup procedures with filter driers
  • Checking refrigerant charge and standing pressure
  • Oil return issues and lubrication problems
  • Floodback vs. starvation conditions
  • Flooded starts and crankcase heaters
  • Hard start kits: when they help and when they hurt
  • Essential electrical components for replacement during changeout
  • Contamination from copper shavings, moisture, and particulates
  • Long line set considerations and manufacturer requirements

 

Critical Diagnosis Steps:

  • Static pressure testing
  • Acid testing procedures
  • Weighing recovered refrigerant
  • Inspecting electrical connections
  • Evaluating airflow and filter conditions
  • Wire damage and high voltage issues

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