Once acid is created within a refrigeration system, what is the most appropriate action to address the issue?

• A. Increase the system pressure to neutralize the acid.
• B. Flush the system and replace the refrigerant and oil.
• C. Ignore the acid, as it will not affect system performance.
• D. Add more refrigerant to dilute the acid.

Answer: (B)

Verified step by step guidance

1. Understand that acid formation in a refrigeration system is harmful because it can corrode components and degrade system performance.
2. Recognize that simply increasing system pressure or adding more refrigerant will not neutralize or remove the acid; these actions do not address the root cause.
3. Know that ignoring the acid is dangerous as it can cause long-term damage to the system.
4. The appropriate action is to flush the system to remove the acid-contaminated oil and refrigerant.
5. After flushing, replace the refrigerant and oil with fresh, uncontaminated materials to restore proper system function and prevent further acid-related damage.