Kohler 6VSG Service Manual page 54

Fault Message
High Lube Oil Temperature
High Lube Oil Temperature
Lo Crank Vlt Warning
Locked Rotor Shutdwn
MainPwrOverL Shutdwn
Maint Req'd Warning
Not In Auto Warning
OB1 CommLoss
(PIM)
Oil Level Low Shutdwn *
Oil Level Low Warning *
Oil Pressure Low Shutdwn
Oil Pressure OpenCR Warning
Over Crank Shutdwn
RBUS ComError Warning
Reserve Oil Empty
54 Section 4 Troubleshooting
Action Description/Comments
Warning Oil temperature higher than 300°F
(149°C).
Shutdown Oil temperature higher than 325°F
(163°C).
Warning During cranking, the controller measured
battery voltage less than 60% (7.2V or
14.4V) for 6 seconds or more during
cranking.
Shutdown The controller shut down the generator
because no rotation of the engine or
alternator was detected, for 3 seconds or
more, during cranking.
Shutdown The internal current limit circuit has
tripped, indicating an overcurrent condition
on the DC power supply circuit.
Warning Engine run time, or calendar days, has
exceeded the maintenance reminder
setting.
Warning The VSC controller is not in AUTO. The
generator will not start from a remote
device.
The digital output for Not In Auto (PIM) is
active (contacts closed).
Warning Communications with option board #1 has
been lost.
Shutdown The controller shut down the generator
because the digital input for Low Oil Level
Shutdown (PIM) was activated (low).
Warning The digital input for Low Oil Level Warning
(PIM) is active (low).
Shutdown The low oil pressure switch was closed for
5 seconds or more, indicating low oil
pressure. Function is inhibited until
30 seconds after crank disconnect.
Warning When the generator set is not running and
controller is in OFF or AUTO, the low oil
pressure switch is not working properly.
Shutdown The controller shut down the generator,
and ceased cranking, because the engine
was not successfully started after the
completion of the last of the crank cycles
setting delay 15 seconds.
Warning The controller has lost communications
with a PIM that had previously been
communicating properly.
Warning The oil makeup kit reservoir bottle is
empty. (Optional communications kit and
oil makeup kit required.)
Check
See Overheats in the
troubleshooting charts in
Section 4.9.
Check cranking battery.
Check cranking circuit.
Troubleshoot the engine. See
Engine Service Manuals.
Check alternator connections to
controller and auxiliary winding
circuit breaker. Troubleshoot
the alternator.
Check crank, run, and flash
relay circuits for short circuits.
Change the oil and perform
other maintenance according
to the service schedule in
Section 2.1.
Reset the maintenance timer
after service. See Section 2.3.
Press the Auto button to ensure
automatic system operation.
Check RBUS wiring to
inoperative option board.
Check customer equipment
connected to the PIM module.
Check customer equipment
connected to the PIM module.
Check for oil leaks.
Check the oil level and add oil if
low.
Check the oil pressure sensor;
see Engine Service Manuals.
Check the oil pressure switch
connection. Replace the LOP
switch if necessary.
See Section 5.7.2.
Check fuel supply. Check
cranking circuit. Check cranking
battery. Troubleshoot engine;
see Engine Service Manuals.
Check connection to the PIM.
Add oil to the oil makeup kit
reservoir. See TT- 1591,
provided with the oil makeup kit,
if necessary.
TP-6844 1/13