HVAC Field Service Representative-Technical Advisor VRF & Diagnostics in Sheffield

Job DescriptionJob Description

Wittichen Supply Company is seeking a highly skilled HVAC Field Service Representative to serve as a technical expert and trusted advisor to our contractor network.

This is a specialized role focused on advanced troubleshooting, VRF systems, and technical support — not routine service work. You will work directly with contractors and manufacturers to solve complex issues, support product adoption, and improve jobsite performance.

What You’ll Do

Technical Troubleshooting & Field Support

• Provide expert phone and on-site support for complex HVAC issues
• Diagnose and resolve advanced system problems across residential and commercial equipment
• Assist with VRF system commissioning and advanced diagnostics (Fujitsu focus)
• Serve as the go-to expert for key product lines including Rheem, Fujitsu, Copeland, and others

Manufacturer & Warranty Liaison

• Act as the primary link between contractors and manufacturer technical teams
• Support warranty questions and non-standard issue resolution
• Maintain strong relationships with manufacturers through training and certifications

Contractor Education & Sales Support

• Lead training sessions for contractors and internal teams
• Educate on installation best practices and advanced product usage
• Support the sales team by removing technical barriers and driving adoption of complex equipment

What We’re Looking For

• 3+ years of experience in HVAC service, technical support, or training
• Strong technical knowledge of HVAC systems:
• • Residential and commercial systems
  • Heat pumps and packaged units
• REQUIRED: Experience with VRF / ductless systems (commissioning + diagnostics)
• Ability to troubleshoot complex systems independently
• Strong communication skills — able to explain technical issues clearly
• Valid driver’s license and ability to travel throughout North Alabama

Compensation & Benefits

• Competitive pay (based on experience)
• Company vehicle, gas, and expenses covered
• Company phone provided
• Opportunity to work in a high-level technical role with industry leaders

Why Join Wittichen Supply

• Established HVAC distributor with a strong industry reputation
• Work directly with top manufacturers and advanced equipment
• Step into a less physical, more technical advisory role
• Be a key partner to contractors — not just a supplier