Weil-McLain 550 MBH Nstallation And Operation Manual page 98

®
SlimFit Series 3
Troubleshooting
Make sure to determine the causes of outages. Do not leave the boiler operating without a complete diagnosis.
Control fault indications
1. The Control provides diagnostic information for
both automatic reset conditions and manual reset
conditions. See Figure 58, page 70 for information
available on the Control display.
2. Figure 84 shows the screen behavior during an
automatic or manual reset condition. The table
Control display toggles when in lockout, with screen flashing red to gray
98
COMMERCIAL CONDENSING GAS
(continued)
3. Figure 85, page 99 lists conditions that will cause the control to display
-
FIRED WATER BOILER
below the display illustration lists manual reset conditions and how
to reset from them.
a constant red screen. The boiler will automatically restart if the con-
dition self-corrects or the technician uses the Control's manual reset
screens to reset.
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Boiler Manual
Part number 550-100-168/0516