Service Technician

Who am I?

A Service Technician performs maintenance and service on refrigeration, heating, ventilating and air conditioning systems and equipment in the field.  If an HVAC system malfunctions, a service technician troubleshoots diagnoses and resolves technical problem, making repairs through the use a variety of methods, including the replacement of worn or faulty parts.


Other Titles

HVAC Service and Maintenance Technician
Heating and Air Conditioning Service Technician
HVAC Service Expert

Essential Skills

Essential Skills are not the technical skills required by particular occupations but rather the skills applied in all occupations. These skills provide the foundation for learning all other skills and apply to careers in HVACR. See Employment and Social Development Canada for more details.

The most important Essential Skills for a Service Technician (as determined through   industry consultation) are:

  • Numeracy – Uses mathematical functions to estimate time and cost materials. Also applies mathematics in use of testing equipment.
  • Document Use - Correctly interprets wiring and assembly diagrams and understands and follows system and equipment operating manuals.
  • Oral Communication Skills – Ability to communicate effectively with customers and team members through both oral and written communication.

What do I do?

As a Service Technician you may do some of the following:

  • Perform maintenance, troubleshooting and repair work requiring HVACR trades knowledge
  • Resolve system and equipment problems in the field in a timely manner, replacing components and making equipment adjustments when necessary
  • Correctly interpret assembly diagrams
  • Estimate time and materials for field servicing and identify other preventive work while on site.
  • Ensure that work conforms to all municipal, utility codes and safety codes
  • Communicate to customers proper care and maintenance accurately and explain the value of company’s products, services and programs
  • Maintain up-to-date knowledge of all modern equipment and regulations 


  • Usually completion of secondary school  is required
  • Required to be a journeymen or indentured apprentice
  • Licensed Refrigeration Mechanic, Mechanical Technician, Gas Fitter(II) or equivalent
  • Knowledge of relevant codes and regulations such as Gas Code, safety requirements
  • Require good driving record, valid driver’s license, and be insurable.