Section 5 Troubleshooting; Introduction; Usb Port; Fault Messages - Kohler 38RCLA Manual

5.1 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.

5.2 USB Port

A USB port is located on the front of the controller. Use a
USB cable with a mini-B connector to connect the
controller to your personal computer (laptop).
Some controller settings can be adjusted using a laptop
computer with Kohlerr SiteTecht software. SiteTech
software is available to Kohler authorized distributors
and dealers. See TP-6701, SiteTecht Software
Operation Manual, for more information.

5.3 Fault Messages

The RDC2 controller displays fault messages to aid in
troubleshooting. Fault messages, descriptions, and
recommended checks are listed in Figure 2-5.
Identify and correct the cause of the fault condition.
Then reset the controller after a fault shutdown. See
Section 2.6.4.

5.4 Circuit Protection

If the generator set circuit breaker trips or the fuses blow
repeatedly, contact an authorized Kohler distributor/
dealer for service.
TP-6810 6/15

Section 5 Troubleshooting

5.4.1

Load Circuit Breaker

The load 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. Refer to
the service views in Section 1 for the location of the
circuit breaker.
5.4.2

Fuses

Always identify and correct the cause of a blown fuse
before restarting the generator set. Refer to Figure 5-1,
Troubleshooting Chart, for conditions that may indicate
a blown fuse. Obtain replacement parts and service
from an authorized Kohler distributor/dealer.
Fan Fuses. Three 30 amp fan fuses are located in the
fan fuse and relay box. See Section 1, Service Views,
for location.
Engine Fuses. Engine fuses are located in the engine
fuse box.
Fuse F1, 5 amps
D
Fuse F2, ECM 10 amps
D
Fuse M3, battery charging alternator, 70 amps
D
Fuse F4, ignition,15 amps.
D
Fuse F6, starter, 20 amps.
D
5.4.3 Controller Internal Circuit
Protection
The controller is equipped with internal circuit
protection. Press OFF to reset.
Section 5 Troubleshooting 63