Which initial step is required when replacing a damaged AC compressor?

Which initial step is required when replacing a damaged AC compressor?

• A. Discharge and recover the system refrigerant
• B. Check engine oil level
• C. Test the battery
• D. Inspect brake lines

Answer: (A)

Discharging and recovering the refrigerant is the first step when replacing a damaged AC compressor. The air conditioning system is a sealed, pressurized system, and releasing refrigerant directly would waste it, pose safety hazards, and violate environmental regulations. Using a certified recovery machine, you remove the refrigerant (and any accompanying oil) from the system before opening it, making it safe to remove the old compressor and install the new one. After recovery, you can proceed with the replacement and later evacuate and recharge the system properly. The other options—checking engine oil, testing the battery, or inspecting brake lines—aren’t part of the initial steps for an AC compressor replacement and don’t address the refrigerant handling needed.

Discharging and recovering the refrigerant is the first step when replacing a damaged AC compressor. The air conditioning system is a sealed, pressurized system, and releasing refrigerant directly would waste it, pose safety hazards, and violate environmental regulations. Using a certified recovery machine, you remove the refrigerant (and any accompanying oil) from the system before opening it, making it safe to remove the old compressor and install the new one. After recovery, you can proceed with the replacement and later evacuate and recharge the system properly. The other options—checking engine oil, testing the battery, or inspecting brake lines—aren’t part of the initial steps for an AC compressor replacement and don’t address the refrigerant handling needed.