Weil-McLain WM97+ Manual page 84

WM97+ -
gas fired water boiler
Troubleshooting
Make sure to determine the causes of outages. Do not leave the boiler operating without a com-
plete diagnosis.
Control module fault indications
1. The control module provides diagnostic information for both
automatic reset conditions and manual reset conditions. See
Figure 60, page 55 for information available on the control
module display and navigation instructions for all menus.
2. Figure 87 shows the screen behavior during an automatic or
Figure 87
Control module display toggles when in lockout, with screen flashing red to gray
84
— Boiler Manual
(continued)
manual reset condition. The table below the display illustra-
tion lists manual reset conditions and how to reset from them.
3. Figure 88, page 85 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 module's manual reset screens to reset.
Part number 550-142-058/0811