EEV Troubleshooting in 3D: A Guide for HVAC Techs

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In this 3D Guide for HVAC Techs, we dive deep into the world of Troubleshooting Electronic Expansion Valves (EEVs) used in HVAC systems. Perfect for HVAC technicians looking to expand their knowledge, we cover:

How bipolar EEVs function in HVAC applications
The difference between stepper motor and direct drive EEVs
Common failure points and troubleshooting methods
Step-by-step diagnostic procedures using meters and specialized tools

Whether you're dealing with mini-splits, VRV/VRF systems or variable speed equipment, this guide walks you through the precise control mechanisms that make EEVs superior to traditional metering devices. Learn to properly test winding resistance, check for mechanical issues, and use tools like manual actuators and the EV mate for effective troubleshooting.
Special thanks to Roman Baugh and JD Kelly for their contributions to EEV education in the field. Check the description for links to JD's tech tip on EEV troubleshooting.

Electronic Expansion Valve Troubleshooting tech tip by Roman Baugh and JD Kelly:
www.hvacrschool.com/electronic-expansion-valve-troubleshooting

If you would like to know more about the EEVMate and the tools available for purchase shown in this video, head on over to Tru Tech Tools:

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