Technical Support Specialist - HVAC

mSupply is a North American distributor of OEM repair parts and equipment serving the appliance, HVAC and plumbing industries. Headquartered in St. Louis, the company combines industry expertise with a broad product selection and a national distribution network.

mSupply is a North American distributor of OEM repair parts and equipment serving the appliance, HVAC and plumbing industries. Headquartered in St. Louis, the company combines industry expertise with a broad product selection and a national distribution network.

With 2,000 employees across the United States and Canada, mSupply delivers speed and reliability at scale, with a vast product inventory and same-day shipping. Its family of brands is focused on making sure customers always get the Right Products. Right Now. For more information, visit

Connecticut-based Bell Simons has supplied HVAC, plumbing and refrigeration products to residential and commercial customers since 1940. The compfers a full range of equipment, controls, parts and supplies from any of industry-leading brands including RUUD, Mitsubishi Electric, Delta and Moen. For more information, visit

The Technical Support Specialist provides pre- and post-sale technical support, as well as training for customers and employees. This role collaborates cross-functionally with sales and support teams and delivers product and staff training as needed.

• Provides prompt, courteous, and effective customer service across all communication channels.
• Maintains professionalism and composure in all customer interactions, including high-pressure situations.
• Builds strong relationships with customers and vendors while upholding ethical standards.
• Collaborates cross-functionally to resolve issues efficiently and positively.
• Designs and delivers employee and product training in collaboration with management.
• Develops training agendas, materials, and assessments to support learning objectives.
• Delivers technical support to dealers by phone and on-site.
• Shares service bulletins and addresses product performance issues.
• Manages local warranty claims, corrective actions, and concessions.
• Responds professionally to consumer inquiries and complaints.
• Resolves dealer and consumer issues, including on-site visits and technical support.
• Coordinates recalls, product rework, and manages technical communications.
• Maintains technical documentation and supports training programs.
• Prepares call reports, advises on parts stocking, and attends vendor trainings.
• Handles incoming calls with professionalism and efficiency.
• Designated Safety Sensitive Position requiring consistent alertness and adherence to safety protocols.
• Travels as needed to support job responsibilities.
• Maintains proficiency in internal and vendor computer systems for job-related tasks (e.g., data entry, messaging, call logging, queue updates).
• Performs other duties as assigned to meet evolving organizational needs.

• High School diploma or GED equivalent.
• Minimum of 2 years’ experience in HVAC or related functions.
• Proficient in Microsoft Office applications, including Word, Excel, PowerPoint, and Outlook.
• Strong aptitude for mathematical operations and numerical analysis.
• Skilled in the use of office equipment such as computers, photocopiers, scanners, phone systems, and virtual meeting platforms.

• 2-year degree or certificate in HVAC or a related field.
• 5+ years of hands‑on experience in HVAC systems and related functions.

Office/Admin

This position may require up to 40+ hours per week and includes routine physical and office-based activities:

• Regular bending, lifting, and carrying of items up to 10…