Commercial HVAC Technician – Field Service & Diagnostics

Lex Air Conditioning and Heating; Dallas (TX); On-site; USD 100,000 - 150,000; Full time

Benefits offered by this job

Competitive pay

Health Coverage: Medical, Dental, Life

Paid vacation and holidays

Company-provided iPhone and iPad

Fully equipped company truck with gas

Training & Development opportunities

Team-oriented work environment

Job summary

Lex Air Conditioning and Heating in Dallas, TX is looking for a skilled Light Commercial HVAC Technician to install, maintain, troubleshoot, and repair commercial heating, ventilation, and air conditioning systems. You will read blueprints, diagnose issues, and ensure safety and quality workmanship on rooftop units, split systems, and boilers.

The role requires 3–5+ years of experience, EPA 608 Universal, a valid driver's license, and the ability to read electrical and mechanical drawings.

Qualifications

• 3–5+ years of light commercial HVAC experience.
• EPA Section 608 Certification required (Universal).
• TDLR license preferred.
• Valid driver’s license and clean driving record.
• Ability to read electrical schematics and mechanical drawings.

Responsibilities

• Diagnose, repair, and maintain light commercial HVAC systems including RTUs, package units, and boilers.
• Perform preventive maintenance and routine service on commercial equipment.
• Troubleshoot electrical, mechanical, and refrigeration issues.
• Read blueprints and technical manuals; document service activities accurately.
• Provide clear recommendations to customers and follow safety procedures.

Skills

3–5+ years experience

Troubleshooting

Diagnostics

Read electrical schematics

Read mechanical drawings

Valid driver's license

Education

EPA Section 608 Certification (Universal)

TDLR (Preferred)

Commercial HVAC certification / tech school training (Preferred)

Job description

Lex Air Conditioning and Heating in Dallas, TX is looking for a skilled Light Commercial HVAC Technician to install, maintain, troubleshoot, and repair commercial heating, ventilation, and air conditioning systems. You will read blueprints, diagnose issues, and ensure safety and quality workmanship on rooftop units, split systems, and boilers.

The role requires 3–5+ years of experience, EPA 608 Universal, a valid driver's license, and the ability to read electrical and mechanical drawings.