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.

ASE 2: VI. Heating, Ventilation, and Air Conditioning: B. Refrigeration System Components (P-1)

Process/Skill Questions:

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