Senior HVAC Diagnostic Technician – Ductless/VRF (NYC)

Mrairnyc; New York (NY); Hybrid; USD 62,000 - 76,000; Full time

Benefits offered by this job

Health Insurance

Company Truck

Fuel Card

PTO

Paid Training

Flexible Schedule

Job summary

MR. AIR NYC, based in Brooklyn, seeks a Senior HVAC Service Technician with foundational leadership to diagnose and repair complex heating, cooling, and electrical systems across NYC.

You will assess refrigerant issues, verify operation, and document findings while mentoring junior techs. This senior role requires extensive troubleshooting experience beyond routine maintenance, with a focus on ductless mini-split and heat-pump systems, and EPA 608 certification.

Qualifications

• Approximately 5+ years of HVAC service and repair experience strongly preferred.
• Demonstrated ability to independently diagnose HVAC problems.
• Strong ductless mini-split and heat-pump experience.
• EPA Section 608 Universal certification.
• Strong electrical troubleshooting skills.
• Ability to use a multimeter and appropriate HVAC diagnostic instruments.
• Working knowledge of refrigeration-system diagnosis and service procedures.
• Ability to interpret wiring diagrams and manufacturer technical documentation.
• Familiarity with inverter-driven equipment.
• Valid driver's license and ability to operate a company service vehicle in New York City.
• Professional residential customer communication skills.
• Ability to document work accurately using mobile applications.
• Ability to explain technical information clearly to less-experienced technicians.

Responsibilities

• Independently diagnose heating, cooling, electrical, controls, refrigerant, airflow, condensate, and communication problems.
• Troubleshoot ductless mini-split, heat-pump, inverter, multi-zone, and VRF systems.
• Use measurements, wiring diagrams, manufacturer documentation, service manuals, and appropriate diagnostic instruments to determine root cause.
• Perform refrigerant leak diagnosis, recovery, pressure testing, evacuation, micron verification, charging, and related repairs in accordance with applicable requirements and manufacturer procedures.
• Diagnose and replace motors, sensors, thermistors, pumps, boards, controls, valves, and related components when appropriate.
• Troubleshoot condensate pumps, float switches, drains, water leaks, and drainage-related failures.
• Verify system operation following repairs and document readings, findings, repairs, photographs, and final operating condition.
• Communicate technical findings professionally to homeowners and property representatives.
• Assist with warranty diagnosis and manufacturer technical-support communication.
• Maintain an organized company service vehicle and follow company safety, customer-care, documentation, and property-protection standards.
• Review callbacks and recurring service issues to help identify corrective actions.
• Mentor developing technicians and explain diagnostic reasoning during appropriate service calls.
• Participate in paid technical training, competency assessments, and field-lab sessions.
• Help establish troubleshooting and service-quality standards for the department.

Skills

HVAC troubleshooting

Diagnostics

Electrical troubleshooting

HVAC refrigerant handling

Residential customer communication

Education

EPA Section 608 Universal certification

Tools

HVAC diagnostic instruments

Multimeter

Job description

MR. AIR NYC, based in Brooklyn, seeks a Senior HVAC Service Technician with foundational leadership to diagnose and repair complex heating, cooling, and electrical systems across NYC.

You will assess refrigerant issues, verify operation, and document findings while mentoring junior techs. This senior role requires extensive troubleshooting experience beyond routine maintenance, with a focus on ductless mini-split and heat-pump systems, and EPA 608 certification.