HVAC Service Technician III

Core Responsibilities

Perform preventive maintenance on rooftop units and split systems, including filter changes, coil cleaning, belt replacement, and refrigerant level checks.
Complete routine service calls and minor repairs, working under supervision at the entry level and independently as experience grows.
Diagnose and repair mechanical, electrical, and refrigerant failures on light through heavy commercial HVAC equipment.
Service cooling towers, packaged units, air handlers, pumps, VAVs, and other assigned commercial equipment.
Conduct airflow diagnostics, duct balancing, and static-pressure testing.
Troubleshoot multistage, variable-speed, and VRF/VRV systems, interpreting wiring diagrams, low- and high-voltage circuits, and control logic.

Required Background

4 to 7 years of HVAC service experience, including 3 to 5 years on multistage, variable-speed, and VRF/VRV systems and 5 years of electrical and controls work.