Generac Power Systems MAGNUM MDG20IF4 Operating Manual page 20

General Information
Fault
Over Speed
Low Fuel Level
Battery Under/Over Voltage
To view the active alarms, repeatedly press the ↑ and ↓ buttons until the LCD window displays the alarm.
Continue to press the ↑ and ↓ buttons will cycle through the alarms.
To exit the alarm screen, press the ↑ and ↓ buttons simultaneously to enter the navigation menu. Once entered, cycle
to the desired operator screen.
Note: The alarm condition must be rectified before a reset will take place. If the alarm condition remains, it is not
possible to reset the unit. The exception to this is the Low Oil Pressure alarm and similar 'active from safety on'
alarms, as the oil pressure is low with the engine at rest.
To remove the fault of the latching alarms, refer to
Note: The LCD backlight is on if the unit has sufficient voltage while the unit is turned on, unless the unit is cranking
for which the backlight is turned off.
If the controller is left in Stop mode for a period of inactivity, the controller enters Power Save mode. To 'wake' the
controller, press the Stop (O) button.
Maintenance Screen
The Maintenance screen (
alarms are for servicing the fuel filter, oil filter, and air filter.
Event Log Screen
The controller's event log (
hours at which they occurred. Once the log is full, any subsequent electrical trip or shutdown alarms overwrites the
oldest entry in the log. Hence, the log always contains the most recent shutdown alarms.
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Table 2: Possible DTC Faults
The engine ECU has detected that the engine speed has risen
above its configured over speed alarm level.
The engine ECU has detected that the engine's fuel level has
fallen below its configured low fuel level alarm.
The engine ECU has detected that the engine's DC supply has
fallen below or risen above its configured alarm level.
"Resetting the Maintenance
) displays the maintenance alarms that are configured into the controller. The three
Fuel Filter
Oil Filter
Air Filter
Figure 13 - Maintenance Screen
) displays a list of the last 15 record electrical trip or shutdown events and the engine
MDG20IF4-MLG20IF4 Operating Manual
DTC Description
Alarms".
7 HRS
7 HRS
7 HRS
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37100 B