Practice question

Before performing a leak check on an MVAC system, the technician should first:

  1. Evacuate the system completely
  2. Run the A/C for several minutes to pressurize all components
  3. Add refrigerant until the system is fully charged
  4. Disable the compressor clutch relay

Answer: B — Run the A/C for several minutes to pressurize all components

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Practice more: EPA Section 609 Motor Vehicle Air Conditioning (MVAC) Technician Certification →