When should a system be flushed?

Flushing a system is essential when contaminants are present because those contaminants can significantly hinder the performance and efficiency of the air conditioning system. Contaminants such as metal shavings, dirt, and debris can accumulate in the system, especially after a compressor failure or during maintenance. If not addressed, these particulates can cause blockages or damage internal components, leading to further complications and increased repair costs.

Flushing removes these impurities from the system and helps restore the flow of refrigerant, ensuring the air conditioning unit operates effectively. While situations such as refrigerant leaks, moisture detection, or compressor failure may indicate a need for flushing or other interventions, the direct need for flushing is most pronounced when contamination is identified, as it directly impacts system reliability and efficiency.