Kohler 6VSG Service Manual

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

Kohler 6VSG Specifications

General

Brand	Kohler
Model	6VSG
Category	Portable Generator
Language	English