A number of symptoms indicate faulty operation of refrigeration and air-conditioning plants. Figures 5-7, 5-8, and 5-9 list some of the problems along with

Figure 5-7.Trouble diagnosis chart.

Figure 5-8.Trouble diagnosis chart-Continued.

Figure 5-9.Trouble diagnosis chart-Continued.

possible causes and corrective measures. Figure 5-10 also lists some of the problems, causes, and corrective measures and includes recommended test procedures that may be used to isolate the problems.