Section 4 Troubleshooting; Introduction; Controller Service Access; Generator Set Troubleshooting - Kohler 14/20RES Operation Manual

4.1 Introduction

Use the following charts 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 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 the equipment.

4.2 Controller Service Access

The controller fuses and alternator winding circuit
breaker are accessible from the front of the controller.
Remove the service access door to reach the circuit
breaker and fuses. See Figure 4-1.
Obtain replacement fuses from a Kohler authorized
distributor/dealer.
1
1. USB port (for service)
2. Alternator winding circuit breaker
3. Controller fuses F2 and F3
Figure 4-1 Controller Service Access (cover
removed)
TP-6734 5/10
2
GM62860
3

Section 4 Troubleshooting

4.3 Generator Set Troubleshooting

Figure 4-2 contains generator set troubleshooting,
diagnostic, and repair information. Check for loose
connections before replacing parts.
Fault Codes
The controller displays fault codes to aid in
troubleshooting. Fault codes, descriptions, and
recommended actions are listed in Section 2.9.
If a fault code is displayed, identify and correct the cause
of the fault condition. Then reset the controller. See
Section 2.9.4.
Section 4 Troubleshooting 41