Title: Remove, inspect, and install expansion valve or orifice (expansion) tube.
Course: Automotive Technology III (20104-III) > Section: Heating, Ventilation, and Air Conditioning (HVAC): Refrigeration System Component Diagnosis and Repair

Procedure should include

- using proper refrigerant recovery equipment (required)
- replacing seals and O-rings.

ASE Education Foundation
2017 Automobile Service Technology (AST) Level
VII. Heating, Ventilation, and Air Conditioning (HVAC)
B. Refrigeration System Component Diagnosis and Repair
Task 9

Process/Skill Questions:

- What specialized tools should be used when servicing the expansion valve or orifice (expansion) tube?
- What procedures are used to service the expansion valve or orifice (expansion) tube?
- What would happen if the expansion valve or orifice expansion tube was defective?