Title: Check the A/C system condition and operation.
Course: Diesel Equipment Technology I (20107-I) > Section: Preventive Maintenance and Inspection: Servicing the Cab and Hood HVAC

Checking should include inspecting and testing, based on

- manufacturer guidelines
- the description of normal operation.

Process/Skill Questions:

- What may cause A/C systems to not cool properly?
- How can the AC system operate normally with no faults and still cause operator complaints?
- What results are expected when the AC system is low on refrigerant? What results can be expected when the AC systems is overfilled with refrigerant?