HVAC Field Service Technician – Industrial Systems Expert

EST Companies LLC; Waipahu (HI); On-site; USD 52,000 - 76,000; Full time

Job summary

EST Companies LLC is seeking a hands-on HVAC Service Technician to support atmospheric water generator systems and industrial equipment at customer sites in Waipahu. You will perform preventive maintenance, repairs, troubleshooting, and equipment start-ups while representing EST with professionalism and strong customer service.

This role emphasizes on-site field work, interpreting schematics, and collaborating with customers to ensure high-quality service and reliable operation of HVAC and

Qualifications

• EPA Refrigerant Handling Certification (Universal or Type III).
• Minimum 1 year of experience in HVAC, industrial maintenance, or related technical fields.
• Strong knowledge of mechanical, electrical, plumbing, hydraulics, pneumatics, and electronic systems.
• Ability to interpret schematics, wiring diagrams, ladder logic, and technical manuals.
• Experience troubleshooting digital/analog circuitry and electric motors preferred.
• Proficiency with standard hand tools and test instruments.
• Strong customer service orientation and professional communication skills.
• Dependable, organized, self-motivated, and able to work under pressure.
• Valid driver’s license with excellent driving record.
• Ability to obtain and maintain military base access and other required credentials.
• Ability to lift 50 lbs routinely and up to 100 lbs occasionally; kneeling, bending, climbing, and exposure to noise or hazards.

Responsibilities

• Equipment Service & Repair — Perform preventative maintenance, inspections, troubleshooting, and repairs on HVAC and industrial equipment.
• Equipment Installation — Assemble, install, start up, and test new equipment at customer sites.
• Technical Troubleshooting — Diagnose issues using schematics, wiring diagrams, manuals, and standard test instruments.
• Field Service Work — Provide on-site and in-field service, including emergency repairs when required.
• Material & Parts Handling — Prepare parts, rework kits, and shipments; manage local pick-ups and deliveries.
• Documentation & Reporting — Maintain accurate service records, equipment histories, trip reports, and expense submissions.
• Customer Interaction — Build professional relationships with customer personnel and communicate service findings clearly.
• Vehicle & Workspace Care — Maintain clean, organized company vehicles and work areas.
• Safety & Compliance — Follow all EST safety procedures, operating standards, and regulatory requirements.

Skills

EPA Refrigerant Handling

HVAC Systems

Electrical & Electronics

Mechanical & Plumbing

Schematics & Wiring Diagrams

Customer Service

Driver's License

Education

EPA Refrigerant Handling Certification

Tools

Test Instruments

Hand Tools

Job description

EST Companies LLC is seeking a hands-on HVAC Service Technician to support atmospheric water generator systems and industrial equipment at customer sites in Waipahu. You will perform preventive maintenance, repairs, troubleshooting, and equipment start-ups while representing EST with professionalism and strong customer service.

This role emphasizes on-site field work, interpreting schematics, and collaborating with customers to ensure high-quality service and reliable operation of HVAC and