IBM 9179-MHB, 9117-MMB manual Fan fault LED and fan identify button

Figure 10. Fan fault LED and fan identify button

a.To identify the failing fan. press the fan identify button (A), as shown in Figure 10. An amber left or right fan-fault LED (C) on solid, as shown in Figure 11, indicates the faulty fan.

Figure 11. Removing a fan

b.Loosen the thumbscrew (A) that holds the fan in the power-supply assembly, as shown in Figure 11.

12Power Systems: Power supplies for the 9117-MMB or 9179-MHB