Title: Identify abnormal operating noises in the A/C system.
Course: Automotive Technology II (MLR 2-Year Program) (20104-II) > Section: HEATING, VENTILATION, AND AIR CONDITIONING: (HVAC): General

Identification should include

- determining the source of any unusual noise (e.g., compressor, clutch, belt, pulleys, fans, refrigerant restrictions, blend door, heater blower motor)
- following service materials and manufacturer guidelines to form a solution.

Process/Skill Questions:

- What can cause abnormal operating noises?
- How would a technician diagnose an abnormal noise in an A/C system
- What service precautions should be taken when working on an A/C system?