Title: Identify the source of HVAC system odors.
Course: Automotive Technology II (20104-II) > Section: Heating, Ventilation, and Air Conditioning (HVAC): Operating Systems and Related Controls

Identification should include determining

- where the odor is most prominent
- the conditions (i.e., heat only, AC only, both) in which the odor occurs.

ASE Education Foundation
2017 Maintenance and Light Repair (MLR) Level
VII. Heating, Ventilation, and Air Conditioning (HVAC)
D. Operating Systems and Related Controls
Task 2

Process/Skill Questions:

- What type of disinfectant can be used to clean the HVAC evaporator system?
- What are the most common causes of HVAC system odors?
- What service precaution should be used when cleaning HVAC systems?
- What is an after-blow system?