Fujitsu Electronics Testing & System Diagnostic (ETSD) Training
2026-04-08 08:00 - 12:00, 2026-04-21 08:00 - 12:00 (America/New_York) | Eklof Landover Training Room, 3401 Pennsy Dr., Landover, MD, 20785
This is a one-day regional class providing in-depth troubleshooting for Airstage H-Series Inverter systems. The class is an instructor-led, hands-on course held across the U.S. offering classroom style training on multi-meters, DC controls and circuits with diagnosis and testing of Fujitsu outdoor unit circuit boards.
***Meters are not provided – Students need to bring a digital multi-meter with fresh batteries to the class.
Certification: Certificates of completion are available upon successful completion of this class.
Light breakfast and a To-Go lunch box is provided.

Navien Level 3 Combi-Boiler Training - Landover, MD
2026-04-09 08:00 - 14:00
Designed for experienced contractors, this advanced-level course provides an in-depth look at Navien Combi-Boiler systems. The session will cover best practices for installation and service, with a touch of error code diagnostics and basic troubleshooting techniques. Participants will also engage in a hands-on unit teardown for practical learning and system familiarity.
NATE CEH credit certificates are available upon successful completion of this class.
Completion of a Navien Level 2 Combi-Boiler class is strongly recommended prior to attending this training.
Breakfast and lunch is provided.

Navien Level 3 Water Heater Training - Landover, MD
2026-04-23 08:00 - 14:00, 2026-05-19 08:00 - 14:00, 2026-06-11 08:00 - 14:00
Designed for experienced contractors, this advanced-level course provides an in-depth look at Navien Tankless Water Heater systems. The session will cover best practices for installation and service, with a touch of error code diagnostics and basic troubleshooting techniques. Participants will also engage in a hands-on unit teardown for practical learning and system familiarity.
NATE CEH credit certificates are available upon successful completion of this class.
Completion of a Navien Level 2 Water Heater class is strongly recommended prior to attending this training.
Breakfast will be provided.
