TP-6079 3/00 13Section 4 Controller Troubleshooting
Does the engine have proper
oil level?
Does the K5 relay LED
light after 5--10 seconds
of running time?
Yes
Does the engine continue
to run after the start
switch is released?
Yes
No
Does the K1
relay LED light?
Does using the stop switch
stop the engine?
Yes
The generator set is
functioning properly.
No
Yes
Go to D
(next page).
No
No
Replace the circuit
board (the K5 relay
is inoperative).
Did the K4 relay LED light?
Replace the circuit board
(inoperative K4 relay).
B
No
Yes
Is the K3 LED lit?
Replace the circuit board
(the K6 relay is inoperative).
No
Yes
C
Is the start/stop
switch functional?
Replace the
start/stop
switch.
No
Yes
No
Replace the switch.
Fill the engine crankcase
with the specified amount of
oil. See Section 1.2.
Is the LOL switch
functional?
Yes
No
Go to C
(above).
Yes
Figure 4-5 Troubleshooting the Relay Controller Circuit Board (3 of 4)
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