Title: Identify window fogging problems.
Course: Diesel Equipment Technology III (20107-III) > Section: HVAC: Servicing the Heating and Engine Cooling Systems

Identification should include

- checking for moisture inside the vehicle
- inspecting drainage issues in humidity mode doors
- checking whether windows are correctly set in place.

ASE 1: VI. Heating, Ventilation, and Air Conditioning: D. Operating Systems and Related Controls (P-1)

Process/Skill Questions:

- What should happen within the HVAC system when the defrost turns on?
- How would keeping the windshield clean on the inside help the A/C systems remove fogging?