6-16 Generator/Controller Troubleshooting TP-5353 8/94
Troubleshooting Manual Controller (Continued)
Does engine
start?
Yes
Is DC voltage present at the following
components (if so equipped)?
D Ignition module (gas/gasoline)
D Fuel pump (gasoline)
D Fuel valve (gas)
D Fuel solenoid (diesel 20-180 kW)
D Governor controller (diesel 200-300 kW)
Is K4 relay
LED lit?
Did an engine safety
shutdown for
overspeed occur?
Replace main
circuit board
(defective K4
relay).
D Check for overspeed
(overfrequency).
D Check/test electronic gov-
ernor and/or voltage regu-
lator.
Engine fault check the following components
(if so equipped):
D Fuel supply
D Ignition module (gas/gasoline)
D Fuel pump (gasoline)
D Fuel valve ( gas)
D Fuel solenoid (diesel 20-180 kW)
D Governor controller (diesel 200-300 kW)
A
Go to
B
No
Yes
No
Yes
No
Yes
No
Check harness
connections from
control board to
component.
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