HVAC Mechanical Technical Support Specialist II

AAON, Inc.; United States; On-site; USD 85,000 - 115,000; Full time

Job summary

AAON, Inc. designs and manufactures high-performance HVAC systems for critical facilities across the United States.

The Technical Support Specialist acts as a technical authority, diagnosing complex HVAC mechanical, electrical, and control issues and guiding field technicians during critical events to protect uptime and revenue. You’ll interpret wiring diagrams and sequence of operation, assess safety devices, and collaborate with operations, sales, manufacturing, and engineering to drive

Qualifications

• Diagnostic expertise in commercial HVAC mechanical and electrical systems.
• Strong knowledge of refrigeration circuits, airflow dynamics, safety controls, and system integration.
• High-level proficiency interpreting wiring diagrams and control schematics.
• Understanding commercial HVAC controls platforms and safety standards.
• Clear, confident technical communication during live service events.

Responsibilities

• Protects system uptime in mission-critical environments.
• Mitigates financial exposure and warranty risk.
• Safeguards customer relationships and brand equity.
• Interprets wiring diagrams, sequence of operation, and mechanical schematics with precision.
• Guides technicians toward safe, code-compliant, and performance-driven solutions.
• Communicate with authority during high-pressure field events.
• Documents technical findings to improve organizational learning.

Skills

Diagnostics

HVAC Systems

Electrical/Control

Wiring Diagrams

Controls Platforms

Customer Communication

Judgment

Job description

Position Overview

Our organization designs and manufactures high-performance commercial HVAC systems serving mission-critical facilities, large-scale commercial campuses, healthcare, data centers, industrial environments, and complex mechanical infrastructures across the United States. Technical Support within our organization is not transactional support — it is a high-impact engineering function directly tied to revenue protection, warranty cost control, customer retention, and brand equity. This role operates as a technical authority and escalation point, serving as the bridge between field operations, sales, manufacturing, quality, and engineering. The Technical Support Specialist protects system uptime, mitigates financial exposure, drives resolution strategy during critical failures, and influences long-term product improvement initiatives. This position carries increasing technical authority, autonomy, and business impact across tier levels. Tier II – Advanced Technical Support Specialist Primary Focus: Independent diagnostics and cross-functional collaboration. Independently diagnose complex mechanical, electrical, and controls-related issues. Interpret integrated system behavior across refrigeration circuits, controls logic, airflow dynamics, and safety devices. Reduce repeat service events by identifying root cause trends. Assist in onboarding new technical staff and Tier 1 training. Exercise judgment in warranty exposure mitigation. Impact Level: Directly reduces warranty expense, minimizes downtime, and protects national customer accounts.

Core Responsibilities

• Protects system uptime in mission-critical environments.
• Mitigates financial exposure and warranty risk.
• Safeguards customer relationships and brand equity.
• Interprets wiring diagrams, sequence of operation, and mechanical schematics with precision.
• Guides technicians toward safe, code-compliant, and performance-driven solutions.
• Communicate with authority during high-pressure field events.
• Documents technical findings to improve organizational learning.

Required Skills & Competencies

• Diagnostic expertise in commercial HVAC mechanical and electrical systems.
• Strong working knowledge of refrigeration circuits, airflow dynamics, safety controls, and system integration.
• High-level proficiency interpreting complex wiring diagrams and control schematics.
• Understanding commercial HVAC controls platforms and safety standards.
• Clear, confident technical communication during live service events.
• Strong professional judgment and customer-facing composure.

Disclaimer

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice. This job description is not an exhaustive list of all functions that the employee may be required to perform, and the employee may be required to perform additional functions. The company reserves the right to revise this job description at any time. The employee must be able to perform the essential functions of the position satisfactorily. If requested, reasonable accommodations may be made to enable employees with disabilities to perform the essential functions of the job, absent undue hardship.

At AAON and BASX, we’re driven by a shared commitment to innovation, performance, and sustainability. Since 1988, AAON has been at the forefront of the HVAC industry, delivering cutting-edge solutions for commercial and industrial indoor environments. Since joining forces with AAON in 2021, BASX has built on that foundation with highly engineered, custom solutions for critical environments—including cleanrooms, data centers, and laboratories—where precision and reliability matter most. Together, we design and manufacture highly configurable systems tailored to each application, ensuring our customers achieve exceptional efficiency, performance, and long-term value. Join us in shaping smarter, more sustainable environments for the future.