Install Instructions

Troubleshooting (continued)
Make sure to determine the causes of outages. Do not leave the boiler operating without a
complete diagnosis.
Figure 94 Control display toggles when in lockout, with screen fl ashing red to gray
Part number 550-100-191/0917
109
®
gas-fired water boiler — 70/110/155 Boiler Manual
Control fault indications
1. The control provides diagnostic
information for both automatic
reset conditions and manual reset
conditions. See Figure 66, page 70 for
information available on the control
display and navigation instructions
for all menus.
2. Figure 94 shows the screen behavior
during a fault condition. The display
illustration and text below in Figure 94
shows how to reset faults from the
Home Owners screen.
3. Figure 96, page 110 lists conditions
that will cause the control to display
a constant red screen. The boiler will
automatically restart if the condition
self-corrects or the technician uses the
control’s manual reset screens to reset.