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PAGE 50 — DCA220SSCU/4i 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #0 (10/25/12)
TROUBLESHOOTING DIAGNOSTICS
The engine controller of this generator diagnoses problems
that arise from the engine control system and the engine
itself.
1. With the engine stopped (OFF). Push and hold the
Hour Check Button (Figure 69) located on the control
panel.
Figure 69. Hour Check Button
2. While keeping the Hour Check Button pressed, place
the Auto Off/Reset Manual Switch (Figure 70) in the
MANUAL position.
Figure 70. Auto-Off/Reset Switch
(Manual Position)
3. The Hour Check Menu Screen will be displayed on
the ECU controller.
4. Releasing the Hour Check Button and pushing the
Program/Exit Button on the ECU controller will return
the controller to the main screen.
HOUR CHECK
BUTTON
5. Push the Program/Exit Button on the ECU controller
and select the Fault Diagnostics mode. This mode
enables the ability to carry out the fault diagnostics
as listed below:
DM1 Active Faults — Displays active fault messages
and codes.
DM2 Messages and Codes — Displays messages and
codes which previously occurred that are recorded in the
Engine Control Module (ECM).
Last Shutdown — Displays the messages and codes
that caused the most recent shutdown.
6. After perfoming diagnostic tests, place the Auto Off/
Reset Manual Switch in the OFF position