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TP-6804 12/11 67Section 6 Troubleshooting
Section 6 Troubleshooting
6.1 Introduction
Use the troubleshooting charts in this section to
diagnose and correct common problems. First check for
simple causes such as a dead engine starting battery,
loose connections, or an open circuit breaker. The
charts include a list of common problems, possible
causes of the problem, and recommended corrective
actions.
If the procedures in this manual do not explain how to
correct the problem, contact an authorized Kohler
distributor/dealer. Maintain a record of repairs and
adjustments performed on the equipment. Use the
record to help describe the problem and repairs or
adjustments made to equipment.
6.2 Fault Messages
The RDC2/DC2 controller displays fault messages to
aid in troubleshooting. Selected fault messages and
recommended checks are listed in Figure 2-3.
Identify and correct the cause of the fault condition.
Then reset the controller after a fault shutdown. See
Section 2.5.4.
6.3 Circuit Protection
If the generator set circuit breaker trips repeatedly,
contact an authorized Kohler distributor/ dealer for
service.
6.3.1 Controller Internal Circuit
Protection
The controller is equipped with internal circuit
protection. A fault message, Accy PwrOver Warning or
MainPwrOverL Shutdown, is displayed if this internal
protection is activated. Press OFF to reset. Contact an
authorized Kohler distributor/ dealer for service.
6.3.2 Line Circuit Breaker
The line circuit breaker interrupts the generator output in
the event of a fault in the wiring between the generator
and the load. If the circuit breaker trips, reduce the load
and switch the breaker back to the ON position.
6.3.3 Auxiliary Winding Circuit Breaker
A resettable circuit breaker protects the alternator. The
circuit breaker is located in the controller’s service
access area. See Figure 6-1.
6.4 Controller Service Access
The alternator winding circuit breaker is accessible from
the front of the controller. Remove the service access
door to reach the circuit breaker. See Figure 6-1.
A USB port is also located in the service access area.
Some controller settings can be adjusted using a laptop
computer with Kohler SiteTech software. Use a USB
cable with a mini-B connector to connect the controller to
your PC. See TP-6701, SiteTech Software Operation
Manual, for more information.
2
GM
1. USB port (mini-B)
2. Alternator winding circuit breaker
1
Figure 6-1 Controller Service Access (cover
removed)