Use and Care Manual
2008 Cummins Inc. All rights reserved.
4-4
TABLE 4-2. TROUBLESHOOTING TRANSFER SWITCHES WITH AN OPERATOR PANEL (CONTINUED)
AC power within the cabinet presents a shock hazard that can cause severe personal
injury or death. Do not remove the front panel under any circumstances.
Improper operation of the generator presents a hazard that can cause severe personal
injury or death. Observe all safety precautions in your generator manuals.
WARNING
WARNING
Problem Corrective ActionPossible Cause
Utility power is restored but
the transfer switch does not
transfer to the utility. The
Generator Connected LED is
flashing.
The control was unsuccessful in its at-
tempts to open the Generator side of the
transfer switch. After 5 attempts to move
the transfer switch, the Generator Con-
nected LED flashes, indicating that it
failed to open.
Press the Override pushbutton on the
control panel to reset the control so that
it will attempt to open the Generator side
of the transfer switch. If the problem still
persists, contact your local Cummins
distributor for service.
The generator did not shut
down after the transfer switch
has transferred the load to
the utility.
1. A time delay engine cooldown
(TDEC) may be timing.
2. The selector switch on the generator
control panel may not be in the
correct position.
1. Wait for the time delay to expire. The
time delay may last up to 30 minutes.
2. Make sure the generator control is
set to the Remote position.
If the problem persists, move the gener-
ator control selector switch to the Off
position to shut down the generator.
Contact your local Cummins distributor
for service.
The generator is running for
no apparent reason.
1. The selector switch on the generator
control panel may not be in the
correct position.
2. There may be an active test or
Exercise period. Check to see if the
Test or Exercise LEDs are blinking.
1. Make sure the generator control is
set to the Remote position.
2. Wait for exercise or test period to
expire or press the Override button
to stop and exercise or the test
button to stop a test.
If the problem persists, move the gener-
ator control selector switch to the Off
position to shut down the generator.
Contact your local Cummins distributor
for service.