Navien Level 2 Training – Advanced Service & Troubleshooting

Presented by Karl Sisson – Navien Expert Trainer

Take your Navien knowledge to the next level with this in-depth Level 2 training session led by Navien technical expert Karl Sisson. Designed for experienced technicians who have already completed a basic Navien course or have field experience, this class dives deep into advanced diagnostics, internal components, and service strategies.

Explore best practices for installation refinement, system performance tuning, and troubleshooting common and complex issues across Navien tankless water heaters, combi-boilers, and boilers.

This training is perfect for service techs, installers, and company owners who want to maximize the performance and reliability of Navien systems.

1. Advanced Diagnostics – Master the use of built-in diagnostic tools, service modes, and error code interpretation.
2. Component-Level Troubleshooting – Dive into fan assemblies, gas valves, heat exchangers, sensors, and flow control components.
3. Performance Optimization – Learn how to fine-tune systems for real-world operating conditions and increase customer satisfaction.
4. Installation Corrections & Upgrades – Identify common mistakes in installs and how to correct them for long-term system health.
5. Tech Tips & Resources – Get insider tricks, documentation guidance, and access to Navien’s full suite of support tools.

Event Venue & Nearby Stays

Johnstone Supply, N59W13730 Manhardt Drive, Menomonee Falls, United States