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Critical Infrastructure Service Technician (477)

Liberty Mechanical
Delavan, KY Full Time
POSTED ON 12/28/2025
AVAILABLE BEFORE 2/27/2026

Job Summary: The Critical Infrastructure Service Technician is responsible for the maintenance, repair, and optimization of HVAC systems and related equipment. This role requires technical expertise, problem-solving skills, and a commitment to providing high-quality service while ensuring safety standards are met.

 

Duties/Responsibilities:

  • Test electrical and refrigerant circuits using the appropriate equipment.
  • Repair and replace defective components, thermostats, relays, timers, and wiring.
  • Repair and service heating, ventilation, and air conditioning (HVAC) systems to improve efficiency, including replacing filters and contactors, refilling refrigerants, and confirming proper refrigerant levels.
  • Install, connect, and adjust thermostats, relays, controls, and timers.
  • Study wiring diagrams, design specifications, and manufacturers' recommendations to confirm configurations and ensure proper installation of heating and cooling equipment components.
  • Comply with all applicable standards, policies, and procedures, including safety protocols and maintaining a clean work area.
  • Record and report time, materials, faults, deficiencies, and unusual occurrences on work orders.
  • Perform preventive or general maintenance procedures, such as cleaning equipment and replacing filters.
  • Inspect and test systems to verify compliance with plans and specifications or to detect and locate malfunctions.
  • Detect internal and external equipment malfunctions, including alarm wiring, control systems, and building environmental systems.
Qualifications:

Required Skills/Abilities:

  • Proficiency in all aspects of HVAC operation, maintenance, and repair.
  • Advanced problem-solving skills with the ability to think outside the box to address unique challenges.
  • Strong adaptability and flexibility, with the ability to work in a variety of environments and handle changing priorities.
  • Ability to read and interpret wiring diagrams and technical specifications.
  • Strong attention to detail and excellent organizational skills.
  • Effective communication and interpersonal skills for working with clients and team members.

Education and Experience:

  • High school diploma or equivalent required; technical certification in HVAC or a related field preferred.
  • Minimum of 3 years of experience in HVAC installation, maintenance, and repair.
  • Familiarity with electrical testing equipment and HVAC diagnostic tools.

Physical Requirements:

  • Ability to perform tasks that require standing, walking, bending, and lifting heavy equipment (up to 50 lbs) regularly.
  • Comfortable working in various environments, including confined spaces and outdoor conditions.
  • Must be able to climb ladders and work at heights when required.
  • Ability to travel to field locations as needed.

Salary.com Estimation for Critical Infrastructure Service Technician (477) in Delavan, KY
$59,044 to $74,950
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