HVAC/R Service Technician - Light Commercial

CoolSys; Knoxville (TN); On-site; USD 25,000 - 35,000; Full time

Benefits offered by this job

Competitive compensation

Sign on bonus up to $3,000

Ongoing education & training

Comprehensive benefits

Year-round diverse work

Quarterly bonus plan

Tuition reimbursement

Employee discounts on vehicles

Pet insurance

Other perks

Job summary

CoolSys is seeking a Service Tech 3 Refrigeration to troubleshoot, maintain, and repair refrigeration systems for commercial and industrial clients. You will guide junior technicians, document work, and ensure safe operation of equipment.

The role requires 3–5 years of HVAC/refrigeration experience, EPA certification, and a valid driver's license; a strong safety mindset is essential. Company offers competitive pay and benefits in a dynamic HVAC/R environment.

Qualifications

• High school diploma or GED required; trade/tech classes preferred.
• Must have passed Tech Skills level 3 with 80% or better.
• Valid EPA certificate required.

Responsibilities

• Troubleshoot, maintain, and repair refrigeration systems for commercial/industrial clients.
• Report to work on time as scheduled by supervisor.
• Repair equipment including compressors, water pumps, air handlers, and control devices.
• Perform preventative maintenance and diagnose malfunctions; document work history.

Skills

HVAC/Refrigeration experience

EPA certification

Tech Skills level 3

Valid driver’s license

Good driving record

Ability to lift up to 60 lbs

MS Office (Word/Excel/Email)

Education

High school diploma or GED

Trade or technical school classes

Tools

Ohmmeter

Gauge set

Job description

Overview

WHY COOLSYS?

At CoolSys, we offer more than just a job—we provide stability, growth, and industry-leading benefits for our employees. No wonder Newsweek named CoolSys one of America’s Greatest Workplaces! As a large company serving diverse customers, we invest in our team with:

• Competitive Compensation: $25-35 DOE
• Sign on Bonus: Up to $3,000.00 DOE
• Ongoing Education & Training: Access to state-of-the‑art facilities and paid online training.
• Comprehensive Benefits: Medical, Dental, Vision, and Prescription coverage, paid vacation/holidays, and a 401(K) match.
• Year‑Round, Diverse Work: Stay engaged with consistent, interesting projects throughout the year, working across various industries and systems to keep learning and growing.
• Extra Perks: Quarterly bonus plan, tuition reimbursement, employee discounts on vehicles, hotels, theme parks, pet insurance, and more.

Join us and advance your career while working with top‑tier clients in the HVAC and refrigeration industry!

Responsibilities

JOB SUMMARY

The Service Tech 3 Refrigeration is responsible for troubleshooting, maintaining, and repairing refrigeration systems. They are expected to handle complex technical issues, provide guidance to junior technicians, and ensure the safe, efficient, and reliable operation of refrigeration equipment for commercial or industrial clients.

ESSENTIAL DUTIES AND RESPONSIBILITIES

• Ability to report to work in a timely manner as scheduled by supervisor.
• Repair and overhaul equipment such as compressors, water pumps, air handlers, electrical and mechanical control devices and other similar machinery.
• Test malfunctioning systems and components using electrical and/or mechanical skills.
• Maintain legible records of work history.
• Provide general repair work on refrigeration, heating and ventilation equipment such as air conditioning units, evaporative condensers, ice machine equipment, water pumps, gas furnaces, compressors and electric motors.
• Provide preventative maintenance activities; diagnose equipment malfunctions and operating efficiency of mechanical equipment.
• Perform work on minor construction and remodeling projects including startups of new installations.
• Embodies the CoolSys CARES culture (Collaboration, Accountability, Respect, Empowerment, Safety).
• Performs other duties as assigned.

Qualifications

• JOB REQUIREMENTS

  Education / Training

  • High school diploma or GED, equivalent work experience and trade or technical school classes.
  • Must have passed Tech Skills level 3 with an 80% or better.
  • Valid EPA certificate.

  Work Experience / Skills

  • 3-5 year's experience in commercial HVAC, refrigeration, and electrical required.
  • Basic knowledge of refrigeration, HVAC, ice machines, gas furnaces, and electrical.
  • Experience working on refrigeration equipment in convenience stores or supermarkets a strong plus.
  • Familiarity with single systems and rack systems along with previous work on display cases and walk‑in boxes is very helpful.
  • Knowledge of the components in a single‑phase compressor and single‑phase motor control circuit.
  • Ability to use an ohmmeter.
  • Ability to verify a capacitor is in good standing.
  • Ability to demonstrate an understanding of defrost circuits.
  • Knowledge of schematic and wiring diagram.
  • Ability to identify/explain function of refrigeration components.
  • Ability to properly leak check a single‑compressor system.
  • Ability to demonstrate proper PPE and safety equipment.
  • Ability to set up LPC as the primary temperature control and as a pump down safety control.
  • Ability to demonstrate how to determine superheat and how to set expansion valve superheat.
  • Ability to verify a defrost termination is functional.
  • Ability to demonstrate the proper tasks for performing preventative maintenance on HVAC systems.
  • Ability and knowledge of the functions and safety precautions of the components of a gas furnace system.
  • Ability to properly recover refrigerant from a refrigeration system.
  • Ability to change oil in a vacuum pump.
  • Ability to demonstrate how to properly hook up a gauge set for evacuation.
  • Knowledge of reporting procedure for a large refrigerant release.
  • Knowledge of level 2 experience/information.
  • Must be able to lift up to 60 lbs. with no assistance and be able to sit and/or stand for several hours at a time.
  • Valid driver’s license.
  • Good driving record.
  • Ability to understand and follow all company policies and procedures and all applicable State and Federal laws.
  • Ability to use typical business tools including E-Mail, Word, Excel, etc.

Join Us

Today, there are 27 different companies that make up the CoolSys family of brands.

Our valued employees are at the heart of our continued growth and success. We invite you to be part of that growth!

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CoolSysis an EEO/AA Employer. All qualified individuals - Including all ages, colors, disability, ethnicity, family or marital status, gender identity or expression, language, national origin, physical and mental ability, political affiliation, race, religion, sexual orientation, socio-economic status, veteran status, and other characteristicsare encouraged to apply.

Pre-employment background screening (criminal and MVR for driving positions) and drug testing arerequiredfor all positions. CoolSys will consider qualified applicants with criminal histories in a manner consistent with federal law, state law, or local ordinance.

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