Kohler M340+ User Manual

4-16 Controller Troubleshooting
TP-5672 11/95
Engine Operates When it Should Not
If the engine continues to operate after the logic
controller removes the start signal, check the power
supply board Start LED and perform the following
procedure.ForlocationoftheStart LEDandotherpower
supplyboardcomponents referredto inthis section, see
Figure 2-1.
1. If the Start LED is on, disconnect the engine from
the contactor by removing wires number 3 and
number 4 from the engine.
a. Iftheenginecontinuestorunwhenwires3and4
are disconnected from the engine, wait the
period of time equal to the engine cooldown to
ensure that the generator set is not just in the
cooldown mode. If the engine continues to run,
check the generator set and the generator set
wiring.
b. If the engine stops running when wires 3 and 4
are disconnected from the engine, remove the
P1 harness from the power supply board.
(1) If the engine continues to run when the P1
harness is disconnected, there is a
contactor problem. See the Contactor
Service Manual.
(2) If the engine stops running when the P1
harness is disconnected, reconnect the P1
wireharness.Checkthecontinuitybetween
TB-DC1-22 and TB-DC1-21. Using an
ohmmeter, connect one test lead to
TB-DC1-22. Connect the other test lead to
TB-DC1-21. If the resistance is high
indicating lack of continuity, replace the
power supply board. If the resistanceislow
indicating continuity, disconnect any
accessories connected to TB-DC1-21 or to
TB-DC1-22. If the engine stops running
after the accessories are disconnected,
checktheaccessoriesbyreferringtoUnit3.
If the engine continues to run after the
accessories are disconnected, replace the
power supply board.
2. If the Start LED is off, check the voltage at
TB-DC1-23. Using a voltmeter, connect one test
leadto TB-DC1-23, andconnect theother test lead
to TB-DC1-34. If the voltmeter does not read
approximately 19 volts AC, see Section 4—Power
To The System. If the voltmeter does read
approximately 19 volts AC, connect P4-1 to
TB-DC1-34.
a. If the Start LED still does not light when P4-1 is
grounded, replace the power supply board.
b. If the Start LED lights when P4-1 is grounded,
check the Normal-Source-Available LED. If the
Normal-Source-AvailableLEDison, replacethe
logic board assembly. If the Normal-Source-
Available LED is not on, see Source-Available
Normal Error.

Kohler M340+ Specifications

General

Brand	Kohler
Model	M340+
Category	Switch
Language	English