Faults; Warnings; Shutdowns; Ats Communication Errors - Kohler 14/20RESA Funcionamiento

2.5 Faults

The RDC2 or DC2 controller displays fault messages
for generator set warnings and shutdowns. Selected
fault messages are shown in Figure 2-3. Contact an
authorized distributor/dealer for service, if necessary.
2.5.1

Warnings

The controller displays a fault message but the
generator set does not shut down on a warning. The
controller resets automatically after a warning condition
is corrected.
2.5.2

Shutdowns

Under a fault shutdown condition, the generator set
shuts down automatically and the controller displays a
fault message. The OFF LED flashes. In some cases,
the engine cooldown cycle runs before the engine shuts
down. See Figure 2-3.
Shutdown switches (such as the low oil pressure switch
or high engine temperature switch) on the generator set
will automatically reset when the problem is corrected.
However, the fault condition at the controller does not
clear until the controller is reset.
The generator set cannot be restarted until the fault
condition is corrected and the controller is reset. See
Section 2.5.4 for instructions to reset the controller after
a fault shutdown.
2.5.3

ATS Communication Errors

When a Model RXT transfer switch is used, an ATS fault
indicates that the connection to the interface board on
the transfer switch has been lost. Check the connection
to the ATS interface board.
Fault Message
Figure 2-2 Clearing a Fault on the RDC2 Controller
TP-6804 1/15
Overview ---->
1.2 h
2.5.4 Resetting the Controller after a
Fault Shutdown
Always identify and correct the cause of a fault
shutdown before resetting the controller. Check the
fault message displayed on the controller and refer to
Figure 2-3 to identify and correct the fault condition
before proceeding.
distributor/dealer for service, if necessary.
RDC2 Controller
Press the OFF button to reset the controller, or follow the
procedure below. See Figure 2-2.
4. While the fault message is displayed, press the
Select button to go to the Overview menu.
5. Press Select again. The active fault message is
displayed.
6. Press Select. Confirm Clear Fault: NO is
displayed.
7. Press the Down arrow button. Confirm Clear Fault:
YES is displayed.
8. Press the Select button to enter YES and clear the
fault.
9. Press the Select button to return to the overview
menu. The controller changes to OFF mode.
10. Press AUTO to put the generator set into automatic
mode.
DC2 Controller
Press the OFF button to clear the fault message on the
controller.
Fault Message
Press Up arrow button.
Section 2 Generator Set Operation
Contact an authorized
Confirm Clear
Fault: NO
Confirm Clear
Fault: YES
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