Title: Check operation of automatic or semi-automatic HVAC control systems; determine needed action.
Course: Automotive Technology III (20104-III) > Section: Heating, Ventilation, and Air Conditioning (HVAC): Operating Systems and Related Controls Diagnosis and Repair

Checking should include

- temperature control
- blend door/vent operation
- blower operation.

The technician should refer to service materials and manufacturer guidelines to repair any defects found.

ASE Education Foundation
2017 Automobile Service Technology (AST) Level
VII. Heating, Ventilation, and Air Conditioning (HVAC)
D. Operating Systems and Related Controls Diagnosis and Repair
Task 8

Process/Skill Questions:

- What tools are used to check automatic or semi-automatic HVAC systems?
- What are common problems with automatic or semi-automatic HVAC systems?
- What procedures should be followed when servicing automatic or semi-automatic HVAC systems?