Title: Identify the A/C system problems indicated by pressure gauge and temperature readings.
Course: Diesel Equipment Technology III (20107-III) > Section: Heating, Ventilation, and Air Conditioning (A/C): Servicing the Air Conditioning (A/C) System and Components, General

Identification should include

- performing a static reading test and comparing it to specifications
- performing an A/C performance test, according to the manufacturer guidelines
- determining any needed action.

Process/Skill Questions:

- What is the deficiency in the system if static pressures are 10 pounds per square inch (psi) higher than the chart values?
- Why does the system have to be at ambient temperature to perform the static test?