Checking should include
- operating the HVAC temperature controls and noting temperature changes
- operating the outlet controls and noting how airflow from the vent changes
- operating the defroster mode and verifying the air conditioning (A/C) compressor engages.
ASE 1: VI. Heating, Ventilation, and Air Conditioning: D. Operating Systems and Related Controls (P-1)
Process/Skill Questions:
- When the temperature is moved to hot, does hot air come out of the vents?
- When the temperature is moved to cold, does cold air come out of the vents?
- When the outlet controls are operated, does air come out of the vent indicated (e.g., foot/vent/defroster)?
- When the defroster mode is selected, did the A/C compressor engage?