Title: Inspect and test HVAC system control cables, motors, and linkages; determine needed action.
Course: Automotive Technology III (20104-III) > Section: Heating, Ventilation, and Air Conditioning (HVAC): Operating Systems and Related Controls Diagnosis and Repair

Inspection should include

- performing a visual check of components for obvious defects
- testing individual components
- referring to service materials and manufacturer guidelines.

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 5

Process/Skill Questions:

- What procedures would a technician use to check AC-heater control cables, motors, and linkages?
- What are common problems with AC-heater control cables, motors, and linkages?
- What procedures should one follow to repair or replace AC-heater control cables, motors, and linkages?