Unit of competency Outline
Date retreived
22/07/2026 8:17 AM AWST
22/07/2026 8:17 AM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Service Type A gas appliances
Service Type A gas appliances
Unit of competency
National Code
CPCPGS4022A
CPCPGS4022A
State Code
WF908
WF908
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
22/03/2013
Field of Education
040327 - Plumbing
Original Release Date
22/03/2013
Nominal Hours
150
Description
This unit of competency specifies the outcomes required to diagnose and repair faults on domestic and commercial Type A gas appliances.
Notes
Elements and Performance Criteria
1 Prepare for work.
- 1.1 Appliance specifications and servicing and manufacturer manuals are obtained for planned work activity.
- 1.2 Work health and safety (WHS) and environmental requirements associated with servicing Type A gas appliances are adhered to throughout the work.
- 1.3 Quality assurance requirements for company operations are identified and adhered to.
- 1.4 Tools, equipmentand materials are selected consistent with servicing needs, checked for serviceability, and faults are rectified or referred for action.
- 1.5 Tasks are planned in conjunction with others involved in or affected by the work.
- 1.6 Work area is prepared to support efficient conduct of servicing the Type A gas appliance.
- 1.7 Electrical safety checks and isolation procedures are completed and recorded to manufacturers' and other statutory and regulatory authorities’ requirements before servicing work is commenced.
- 1.8 Sustainability principles and concepts are observed when preparing for and undertaking work process.
2 Disassemble and assemble Type A gas appliances.
- 2.1 Appliance specifications and servicing and manufacturer manuals are obtained and analysed to confirm assembly and disassembly techniques and sequences.
- 2.2 Preliminary diagnosis is completed to focus and minimise disassembly requirement.
- 2.3 Disassembly and reassembly are carried out safely and in a sequential manner.
- 2.4 Appliance is assessed to ensure it complies with relevant standards and manufacturer specifications prior to commissioning and return to service.
3 Diagnose and remedy electrical and electronic circuitry faults.
- 3.1 Electrical safety checks and isolation procedures are completed and recorded to manufacturer and other authorities’ requirements before servicing work is commenced.
- 3.2 Electrical circuit and wiring diagrams are read and correctly interpreted to identify potential fault pathways and locations.
- 3.3 Appropriate testing techniques, procedures and equipment are selected and applied to diagnose faults in circuit wiring, components and ignition systems.
- 3.4 Cause of fault is determined and confirmed.
- 3.5 Most appropriate corrective action is selected after a complete analysis of options.
- 3.6 Repair, replacement and adjustment action is taken according to manufacturer specifications or service manuals.
- 3.7 Appliance is assessed to ensure it complies with relevant standards and manufacturer specifications prior to commissioning and return to service.
4 Diagnose and remedy gas system faults on Type A gas appliances.
- 4.1 Electrical and gas safety checks and isolation procedures are completed and recorded to manufacturer and other authorities’ requirements before servicing work is commenced.
- 4.2 Gas system plans and diagrams are read and correctly interpreted to identify potential fault pathways and locations.
- 4.3 Appropriate testing techniques, procedures and equipment are selected and applied to diagnose gas system faults.
- 4.4 Flue gases are analysed according to recognised industry practice and local authorities’ requirements.
- 4.5 Cause of fault is determined and confirmed.
- 4.6 Most appropriate corrective action is selected after a complete analysis of options.
- 4.7 Repair, replacement and adjustment action is taken according to manufacturer specifications or service manuals.
- 4.8 Appliance is assessed to ensure it complies with relevant standards and manufacturer specifications prior to commissioning and return to service.
5 Clean up work area.
- 5.1 Work area is cleared and materials disposed of, reused or recycled according to legislation, regulations, codes of practice, and job specification.
- 5.2 Tools and equipment are cleaned, checked, serviced and stored according to manufacturer recommendations and workplace procedures.
- 5.3 Informationis accessed and documentation completed according to workplace requirements.
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Work health and safety is to be according to commonwealth, state and territory legislation and regulations and may include:
handling of materials
hazard control
identifying and testing for electrical hazards
personal protective clothing and equipment prescribed under legislation, regulations and workplace policies and practices
safe operating procedures, including recognising and preventing hazards associated with:
electrical components and safety
gas fires and explosions
hazardous materials and substances
service lines
surrounding structures and facilities
trip hazards
use of tools and equipment
work site visitors and the public
working at heights
working in proximity to others
use of firefighting equipment
use of first aid equipment
workplace environment and safety.
Environmental requirements may include:
air pollution
clean-up protection
waste management.
Type A gas appliances:
are badged appliances of less than 500 megajoules (MJ) for which an Australian Gas Association (AGA) and Australian Liquefied Petroleum Gas Association (ALPGA) approval scheme exists
include:
decorative heaters
ducted heating systems
gas stoves and hot plates
heated water storage
instant heated water heaters
space heaters
mechanical components and gas appliance systems, which may include:
combustion chambers
heat exchangers
primary flues.
Quality assurance requirements may include:
AGA requirements
Environment Protection Authority (EPA)
internal company quality assurance policy and risk management strategy
International Standards Organisation
maintenance of Type A gas appliances complying with appropriate Australian standards
site safety plan
workplace operations and procedures.
Tools and equipment may include:
lifting and load shifting equipment, including:
chain blocks
forklifts
hand trolleys
hoists and jacks
rollers
measuring equipment
test equipment and instruments, including:
dual probe voltage tester
manometers
multi-meters
megohmmeter
hand and power tools
spanners
wrenches.
Materials for the maintenance of Type A gas appliances:
may include:
piping materials
regulators and meters
Type A gas appliances
other approved materials
are to comply with appropriate standards for the maintenance of Type A gas appliances.
Statutory and regulatory authorities include:
commonwealth, state or territory, and local authorities administering applicable Acts, regulations and codes of practice.
Sustainability principles and concepts:
cover the current and future social, economic and environmental use of resources
may include:
efficient energy use
efficient use and recycling of material
correct handling of hazardous materials
disposing of waste material to ensure minimal environmental impact
selecting appropriate components to ensure minimal environmental impact.
Testing techniques include de-energised and energised tests, which may include:
capacitors
electric motors
heat activated switches
ignition systems (basic, ignition and re-ignition, flame safeguard systems, hot surface ignition)
printed circuit boards
relay time delay and conventional
solenoid coils
thermistors
thermostats, direct and indirect wired
time clocks, mechanical and electronic
transformers.
Adjustment and calibration are to include:
dip switches
fan limit controls
fan speed settings
heat anticipators
thermostats.
Corrective action, such as component removal and replacement, is to include:
burners
combination controls
fans
pilots
rail cocks, thermostats and associated components
solenoid valve regulators
thermocouples.
Information may include:
charts and hand drawings
diagrams, sketches and graphics
instructions issued by authorised organisational or external personnel
job drawings
manufacturer specifications and instructions
maps
material safety data sheets (MSDS)
memos
organisation work specifications and requirements
regulatory and legislative requirements, particularly those pertaining to:
building codes
WHS and environmental requirements
plumbing and gasfitting authority regulations
relevant Australian standards, including AS/NZS3000 Electrical installations, AS/NZS4836 Safe working on low-voltage electrical installations, AS5601 (AG601) Gas installations
safe work procedures relating maintaining Type A gas appliances
signage
verbal, written and graphical instructions
work bulletins
work schedules, plans and specifications.
Work health and safety is to be according to commonwealth, state and territory legislation and regulations and may include:
handling of materials
hazard control
identifying and testing for electrical hazards
personal protective clothing and equipment prescribed under legislation, regulations and workplace policies and practices
safe operating procedures, including recognising and preventing hazards associated with:
electrical components and safety
gas fires and explosions
hazardous materials and substances
service lines
surrounding structures and facilities
trip hazards
use of tools and equipment
work site visitors and the public
working at heights
working in proximity to others
use of firefighting equipment
use of first aid equipment
workplace environment and safety.
Environmental requirements may include:
air pollution
clean-up protection
waste management.
Type A gas appliances:
are badged appliances of less than 500 megajoules (MJ) for which an Australian Gas Association (AGA) and Australian Liquefied Petroleum Gas Association (ALPGA) approval scheme exists
include:
decorative heaters
ducted heating systems
gas stoves and hot plates
heated water storage
instant heated water heaters
space heaters
mechanical components and gas appliance systems, which may include:
combustion chambers
heat exchangers
primary flues.
Quality assurance requirements may include:
AGA requirements
Environment Protection Authority (EPA)
internal company quality assurance policy and risk management strategy
International Standards Organisation
maintenance of Type A gas appliances complying with appropriate Australian standards
site safety plan
workplace operations and procedures.
Tools and equipment may include:
lifting and load shifting equipment, including:
chain blocks
forklifts
hand trolleys
hoists and jacks
rollers
measuring equipment
test equipment and instruments, including:
dual probe voltage tester
manometers
multi-meters
megohmmeter
hand and power tools
spanners
wrenches.
Materials for the maintenance of Type A gas appliances:
may include:
piping materials
regulators and meters
Type A gas appliances
other approved materials
are to comply with appropriate standards for the maintenance of Type A gas appliances.
Statutory and regulatory authorities include:
commonwealth, state or territory, and local authorities administering applicable Acts, regulations and codes of practice.
Sustainability principles and concepts:
cover the current and future social, economic and environmental use of resources
may include:
efficient energy use
efficient use and recycling of material
correct handling of hazardous materials
disposing of waste material to ensure minimal environmental impact
selecting appropriate components to ensure minimal environmental impact.
Testing techniques include de-energised and energised tests, which may include:
capacitors
electric motors
heat activated switches
ignition systems (basic, ignition and re-ignition, flame safeguard systems, hot surface ignition)
printed circuit boards
relay time delay and conventional
solenoid coils
thermistors
thermostats, direct and indirect wired
time clocks, mechanical and electronic
transformers.
Adjustment and calibration are to include:
dip switches
fan limit controls
fan speed settings
heat anticipators
thermostats.
Corrective action, such as component removal and replacement, is to include:
burners
combination controls
fans
pilots
rail cocks, thermostats and associated components
solenoid valve regulators
thermocouples.
Information may include:
charts and hand drawings
diagrams, sketches and graphics
instructions issued by authorised organisational or external personnel
job drawings
manufacturer specifications and instructions
maps
material safety data sheets (MSDS)
memos
organisation work specifications and requirements
regulatory and legislative requirements, particularly those pertaining to:
building codes
WHS and environmental requirements
plumbing and gasfitting authority regulations
relevant Australian standards, including AS/NZS3000 Electrical installations, AS/NZS4836 Safe working on low-voltage electrical installations, AS5601 (AG601) Gas installations
safe work procedures relating maintaining Type A gas appliances
signage
verbal, written and graphical instructions
work bulletins
work schedules, plans and specifications.
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
This unit of competency could be assessed in the workplace or a close simulation of the workplace environment providing that simulated or project-based assessment techniques fully replicate plumbing and services workplace conditions, materials, activities, responsibilities and procedures.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
A person who demonstrates competency in this unit must be able to provide evidence of:
locating, interpreting and applying relevant information, standards and specifications to determine requirements and maintain Type A gas appliances
applying safety requirements throughout the work sequence, including applying equipotential bonding procedures and using personal protective clothing and equipment; and isolating appliances from gas and electrical services
performing the following servicing activities and functions:
application of sustainability principles and concepts
disassembly, reassembly, testing and recommissioning of a minimum of two different Type A gas appliances
conduct evaluative tests on electrical and electronic components, including central processing units, printed circuit boards and associated parts, in order to diagnose and remedy faults and malfunctions
conduct evaluative tests on gas systems to diagnose and remedy faults and malfunctions on the components listed in the range statement
convert a Type A gas appliance to operate on another gas type, according to AS5601, any local utility's requirements and manufacturer specifications
servicing activities and function should ensure:
correct selection and use of appropriate processes, tools and equipment
completion of all work to specification
compliance with regulations, standards and organisational quality procedures and processes
communicating and working effectively and safely with others.
Context of and specific resources for assessment
This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints.
Assessment of essential underpinning knowledge will usually be conducted in an off-site context.
Assessment is to comply with relevant regulatory or Australian standards' requirements.
Resource implications for assessment include:
an induction procedure and requirement
realistic tasks or simulated tasks covering the minimum task requirements
relevant specifications and work instructions
tools and equipment appropriate to applying safe work practices
support materials appropriate to activity
workplace instructions relating to safe work practices and addressing hazards and emergencies
material safety data sheets
research resources, including industry-related systems information.
Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.
Method of assessment
Assessment methods must:
satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Training Package
include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application
reinforce the integration of employability skills with workplace tasks and job roles
confirm that competency is verified and able to be transferred to other circumstances and environments.
Validity and sufficiency of evidence requires that:
competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace
where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice, with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge
all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence.
Assessment processes and techniques should as far as is practical take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.
Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.
Overview of assessment
This unit of competency could be assessed in the workplace or a close simulation of the workplace environment providing that simulated or project-based assessment techniques fully replicate plumbing and services workplace conditions, materials, activities, responsibilities and procedures.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
A person who demonstrates competency in this unit must be able to provide evidence of:
locating, interpreting and applying relevant information, standards and specifications to determine requirements and maintain Type A gas appliances
applying safety requirements throughout the work sequence, including applying equipotential bonding procedures and using personal protective clothing and equipment; and isolating appliances from gas and electrical services
performing the following servicing activities and functions:
application of sustainability principles and concepts
disassembly, reassembly, testing and recommissioning of a minimum of two different Type A gas appliances
conduct evaluative tests on electrical and electronic components, including central processing units, printed circuit boards and associated parts, in order to diagnose and remedy faults and malfunctions
conduct evaluative tests on gas systems to diagnose and remedy faults and malfunctions on the components listed in the range statement
convert a Type A gas appliance to operate on another gas type, according to AS5601, any local utility's requirements and manufacturer specifications
servicing activities and function should ensure:
correct selection and use of appropriate processes, tools and equipment
completion of all work to specification
compliance with regulations, standards and organisational quality procedures and processes
communicating and working effectively and safely with others.
Context of and specific resources for assessment
This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints.
Assessment of essential underpinning knowledge will usually be conducted in an off-site context.
Assessment is to comply with relevant regulatory or Australian standards' requirements.
Resource implications for assessment include:
an induction procedure and requirement
realistic tasks or simulated tasks covering the minimum task requirements
relevant specifications and work instructions
tools and equipment appropriate to applying safe work practices
support materials appropriate to activity
workplace instructions relating to safe work practices and addressing hazards and emergencies
material safety data sheets
research resources, including industry-related systems information.
Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.
Method of assessment
Assessment methods must:
satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Training Package
include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application
reinforce the integration of employability skills with workplace tasks and job roles
confirm that competency is verified and able to be transferred to other circumstances and environments.
Validity and sufficiency of evidence requires that:
competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace
where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice, with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge
all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence.
Assessment processes and techniques should as far as is practical take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.
Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| D7464 | CPCPGS4012A | Service Type A gas appliances | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| OCN77 | CPCPGS4022 | Service Type A gas appliances | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| J497 | CPC40912 | Certificate IV in Plumbing and Services | Qualification |