Unit of competency Outline

Date retreived
22/07/2026 5:30 AM AWST

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Diagnose and repair air conditioning and HVAC components

Diagnose and repair air conditioning and HVAC components

Unit of competency
National Code
AURETU104
State Code
OCJ80
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
13/11/2020
View on TGA
State Implementation and Classification
Approved Date
31/03/2021
Field of Education
030503 - Vehicle Mechanics
Original Release Date
31/03/2021
Nominal Hours
30
Description
This unit describes the skills and knowledge required to diagnose and repair faults in the air conditioning systems, including heating, ventilation and air conditioning (HVAC) systems, fitted to a range of vehicles and machinery for passenger convenience and comfort. The systems used vary based on the work context. It involves preparing for the task, sourcing a diagnostic testing strategy, diagnosing the cause of the fault, carrying out the repair, performing post-repair testing, and completing workplace processes and documentation.The unit applies to those who work in an automotive service and repair industry. Automotive air conditioners, in addition to HVAC systems, include those in agricultural machinery, heavy commercial vehicles, light vehicles or mobile plant machinery.Licensing requirements apply to this unit. Users are advised to check with relevant regulatory authority. An Australian Refrigeration Council accredited (ARCtick) Refrigerant Handling licence is required for those carrying out this work.
Notes
Elements and Performance Criteria
1. Prepare to diagnose and repair air conditioning and HVAC system
  • 1.1 Identify job requirements from workplace instructions
  • 1.2 Identify required information for diagnosis activity
  • 1.3 Select diagnostic options and source testing strategy to identify cause of fault using workplace and manufacturer procedures
  • 1.4 Identify hazards and environmental issues associated with diagnose and repair activity, assess potential risks and implement control measures in line with workplace policies and procedures
  • 1.5 Identify tools and equipment required for testing strategy and establish serviceability according to workplace procedures
2. Diagnose air conditioning and HVAC system
  • 2.1 Carry out diagnostic tests set out in testing strategy according to manufacturer and workplace procedures, and workplace health and safety requirements
  • 2.2 Identify cause of fault through examination of diagnostic test results
  • 2.3 Confirm and report cause of fault according to workplace procedures
  • 2.4 Develop and report recommendations for necessary repairs according to workplace procedures
3. Operate recovery equipment
  • 3.1 Identify vehicle refrigerant with a refrigerant identifier or analyser
  • 3.2 Weigh recovery cylinder and record available capacity and tare weight of cylinder
  • 3.3 Connect recovery equipment to vehicle according to manufacturer specifications, workplace procedures, workplace health and safety and environmental requirements
  • 3.4 Recover refrigerant and transfer into designated recovery cylinder using recovery equipment according to manufacturer specifications, workplace procedures, and workplace health safety and environmental requirements
4. Repair air conditioning and HVAC system
  • 4.1 Identify required information for repair activity
  • 4.2 Identify required repair tools, equipment and materials required for repair activity and establish serviceability according to workplace procedures
  • 4.3 Carry out repairs according to workplace and manufacturer procedures, manufacturer specifications, workplace health and safety and environmental requirements
  • 4.4 Recharge system with required refrigerant gas according to manufacturer specifications, workplace procedures and workplace health and safety and environmental requirements
  • 4.5 Carry out post-repair testing according to workplace procedures, workplace health and safety and environmental requirements
5. Complete work processes
  • 5.1 Conduct final inspection according to workplace procedures and confirm vehicle is ready for use
  • 5.2 Clear work area and dispose of or recycle materials according to workplace procedures
  • 5.3 Complete Australian Refrigeration Council accredited (ARCtick) service decal sticker and workplace documentation according to workplace procedures.
No information
No information
Replaces
State Code National Code Title Type
AXD56 AURETU004 Diagnose and repair air conditioning and HVAC systems Unit of competency