CHAPTER 3: DESCRIPTION AFC1150 FRONT PANEL (REFERENCE FIGURE 3.1) NO. ITEM DESCRIPTION OF OPERATION 1 Busy/Abnormal LED This LED lights up yellow while backing-out or when the Reset button is applied. When the LED lights up red, it indicates an Abnormal condition. 2 Code A, B, and C LED's When an abnormal condition occurs, the lit/unlit combination of these three (3) LED's represents a reference code for use with the Troubleshooting chart in this manual.
