38 Section 3 Controller TP-6844 1/13
3.5 Controller Replacement
Always check the controller settings, wiring, and
connections before replacing the controller. Use the
procedure in this section for controller replacement,
when necessary.
If a controller settings file was created at installation or
at some other time when the controller was known to
be operating correctly, a personal computer (laptop)
with Kohler
®
SiteTech™ software can be used to load
the settings onto the new controller. In some cases,
the Kohler Generator Service Department may provide
a settings file to load onto the controller for testing or
troubleshooting. See TP-6701, SiteTech Software
Operation Manual, for instructions to export and import
settings after controller replacement.
Note: Export the old controller settings to the new
controller only if you are certain that the settings
are correct. Many controller operation problems
can be caused by incorrect settings.
Some setup is required once the new controller is
installed. The VSC controller can be set up using the
buttons on the controller or using a personal computer
and Kohler
®
SiteTech™ software.
3.5.1 Controller Replacement Procedure
1. Using the enclosure locking tool provided with the
generator set, open the enclosure roof. See
Figure 3-11.
2. Press the OFF button on the controller.
3. Disconnect power to the generator set by
opening the circuit breaker in the distribution
panel (if equipped). Use a voltmeter to verify that
power has been disconnected. See Figure 3-12
for the power connection location.
4. Disconnect the generator set engine starting
battery, negative (–) lead first.
5. Remove the two screws securing the controller to
the junction box and carefully lift the bottom edge
of the controller. See Figure 3-13.
Note: Be careful of the leads and harness connected
to the controller panel.
Figure 3-11
Figure 3-11 Controller Location
Figure 3-12
Figure 3-12 Power Connection and Nameplate
Locations
Hazardous voltage.
Will cause severe injury or death.
Disconnect all power sources before
opening the enclosure.
1. Power connection
location (terminal block
behind panel)
2. Nameplate location
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