Product Manual

26 TP-6843 12/21
Fault Message
Warning (W) or
Shutdown (SD)
Condition
Check
Engine Oil
Pressure Low
SD *
The LOP switch indicates low oil pressure for more than 5
seconds. Function becomes active 30 seconds after crank
disconnect (30 second inhibit).
Note:
The low oil pressure shutdown does not protect against low
oil level. Check the engine oil level regularly as
recommended in Section 4.
Check for leaks in the
lubrication system.
Check the oil level and add oil if
the level is low.
Fuel Pressure
Low
W
The fuel pressure switch measures low fuel pressure (below
4.5 inches water column). (Optional communications kit
required.)
Check fuel supply and fuel
lines.
Engine Speed
High
SD *
Engine speed exceeds 115% of the normal running speed for
more than 0.3 seconds.
Contact an authorized
distributor/dealer for service.
Exer Not Sch
W
Exercise not scheduled. No exercise is scheduled on the
controller.
See Section 3.6 for instructions
to set the exerciser.
Generator
VoltageL1-L2
High
SD *
Generator voltage high. Output voltage exceeds 120% of the
system nominal voltage for more than 2 seconds.
Contact an authorized
distributor/dealer for service.
Lo Crank Vlt
W
Low cranking voltage. Battery voltage falls below 8 VDC for
more than 6 seconds while the starter is engaged.
Charge or replace the battery.
Locked Rotor
SD
No engine rotation is sensed during cranking. Shuts down 3
seconds after the fault is detected.
Check the battery.
Check for loose connections.
Contact an authorized
distributor/dealer for service.
MainPwrOverL
Shutdown
SD
Main power overload. An over current fault on the controller
output (short circuit).
Contact an authorized
distributor/dealer for service.
Not in Auto
W
The generator set is not in Automatic (standby) mode.
Remote start and stop commands from a transfer switch or
remote switch will be ignored.
Press AUTO to place the
generator set in Automatic
mode, when appropriate.
Over Crank
SD
Three unsuccessful starting attempts.
Check the fuel supply, spark
plug, and battery.
Check for loose connections.
Contact an authorized
distributor/dealer for service.
Reserve Oil
Empty
W
The oil makeup kit reservoir bottle is empty. (Optional
communications kit and oil makeup kit required.)
Add oil to the oil makeup kit
reservoir.
Speed Sensor
Fault
SD
Engine speed sensing has failed or engine stalled.
Contact an authorized
distributor/dealer for service.
* Engine cooldown runs before shutting down.
Figure 12 Controller Fault Messages