Kohler 4EOZ Service page 61

B
After the start switch is
release, is the engine
operating?
No
Is 12 DC voltage present on
the K2 relay coil?
No
Is any red LEDs (LOP, HET,
HCHT) lit?
No
Change the control panel.
Figure 8-8 Troubleshooting Relay Controller Control Panel (3 of 4)
TP-6137 5/03
Can you stop the engine
Yes
using the on/off switch?
No
Are the 30-87 terminals of
the K2 relay open?
D LOP—Check the oil level,
Yes the oil pressure, and the
alarm switch.
D HET and HCHT—Check if
water flows out of the
exhaust manifold and if the
two alarm switches work.
D Are these checks okay?
Yes
Change the control panel.
Generator set checks out
Yes
okay.
Change the K2 relay.
No
Section 8 Controller Troubleshooting 49