Kohler Generator Troubleshooting and RXT Transfer Switch Manual
Page 68

6.5 Troubleshooting

Figure 6-2 contains generator set troubleshooting, diagnostic, and repair information. Check for loose connections before replacing parts.

Problem

Possible Cause

Corrective Action

 

 

 

Controller

Backlight turns off after about 1 minute with no

Backlight will turn on when a button is pressed or the

display

activity.

generator set starts.

backlight is off.

 

 

 

 

 

Controller

Low or no battery voltage.

Check connections.

display is off.

 

Check generator set battery. See Figure 6-2.

 

 

 

The generator

Battery weak or dead.

Recharge or replace the battery.

set does not

 

 

Battery connections reversed or poor.

Check the connections.

crank.

 

 

Fault shutdown.

Check the controller display for fault messages. See

 

 

 

Section 2.5. Correct the fault condition and reset the

 

 

controller.

 

 

 

 

Generator set in the OFF mode.

Press the RUN button to start the engine or press AUTO

 

 

to allow remote starting.

 

 

 

The generator

Air cleaner clogged.

Clean and/or replace the air cleaner.

set cranks but

 

 

Battery weak or dead.

Recharge or replace the battery.

does not start,

 

 

Battery connection poor.

Clean and tighten the battery connections.

starts hard,

 

 

lacks power, or

Spark plug wire connection loose.

Check the spark plug wires.

operates

 

 

Low oil pressure shutdown.

Check for oil leaks. Check the oil level and add oil if

erratically.

 

necessary.

 

 

 

 

 

 

Fuel pressure insufficient.

Check the fuel supply and valves.

 

 

 

 

Engine malfunction.

Contact an authorized Kohler distributor/dealer.

 

 

 

No AC output.

Line circuit breaker in the OFF position.

Place the circuit breaker in the ON position.

 

 

 

 

Line circuit breaker tripping because of

Reduce the load on the generator set.

 

overload.

 

 

 

 

 

Line circuit breaker tripping because of short

Contact an authorized Kohler distributor/dealer for

 

circuit.

service.

 

 

 

 

Auxiliary winding circuit breaker tripped.

Reset the circuit breaker (located in controller’s service

 

 

access area). Contact an authorized Kohler

 

 

distributor/dealer for service if breaker trips repeatedly.

 

 

 

Low output or

Generator set overloaded.

Reduce the load.

excessive drop

 

 

in voltage.

 

 

 

 

 

Generator set

Low oil pressure shutdown.

Check for oil leaks. Check the oil level and add oil if

stops suddenly.

 

necessary.

 

 

 

 

Out of fuel.

Check fuel supply.

 

 

 

 

Overcrank shutdown.

Reset the controller. If the overcrank fault occurs again,

 

 

contact an authorized Kohler distributor/dealer.

 

 

 

 

Auxiliary winding circuit breaker tripped.

Reset the circuit breaker (located in controller’s service

 

 

access area). Contact an authorized Kohler

 

 

distributor/dealer for service if breaker trips repeatedly.

 

 

 

 

Fault shutdown.

Check the controller display for fault messages. See

 

 

Section 2.5. Correct the fault condition and reset the

 

 

controller.

 

 

 

 

Generator set in the OFF mode.

Press the RUN button to start the engine or press AUTO

 

 

to allow remote starting.

 

 

 

 

Remote stop command received from a remote

Check the remote switch position. Check OnCue.

 

switch, ATS, or OnCue.

 

 

 

 

 

Engine malfunction.

Contact an authorized Kohler distributor/dealer.

Figure 6-2 General Troubleshooting Chart

68 Section 6 Troubleshooting

TP-6804 12/11

Page 67 Page 69
Image 68
Page 67 Page 69
Contents TP-6804 12/11 ModelsControllers Product Identification Information Controller IdentificationGenerator Set Identification Numbers Engine IdentificationTable of Contents Networking Configuration Submenu OnCue Password Table of Contents TP-6804 12/11 Accidental Starting Safety Precautions and InstructionsBattery Engine Backfire/Flash Fire Exhaust SystemFuel System Hazardous Noise Hazardous Voltage/ Moving PartsHeavy Equipment Hot PartsIntroduction List of Related LiteratureNameplate Emission InformationService Assistance Service Assistance TP-6804 12/11 Descriptions and Service Views Transfer SwitchIntroduction Engine Generator Set EnclosureRDC2 Controller Features DC2 Controller Features Accessories Service Views Removed to Show DetailDescriptions and Service Views TP-6804 12/11 Prestart Checklist Generator Set OperationExercising the Generator Set Generator Set OperationAutomatic Operation with Model RXT Transfer Switch Automatic Operation with Model RDT or RSB Transfer SwitchesExercise Setting the ExerciserUnloaded Cycle Exercise with Complete System Diagnostics Faults Resetting the Controller after a Fault Shutdown Clearing a Fault on the RDC2 ControllerCheck communication wiring between Controller Fault Messages Generator Set Operation TP-6804 12/11 RDC2 Controller Operation RDC2 Generator Set/ Transfer Switch ControllerControls and Indicators Controller Keypad LED Indicators RUN OFF AutoAutopaging Displays, Automatic Mode LCD DisplayChanging Settings Controller PowerBattery Charging Changing Settings Changing the Exercise Settings Setting the ExerciserSetting the Exerciser at Controller Power--up Procedure to Set the Exerciser on the RDC2 Controller RDC2 Controller Menus Main MenuOverview Menu Engine Metering MenuGenerator Metering Menu 12 Generator Metering MenuGenerator Set Information Menu Genset Run Time MenuGenset System Menu 15 Genset System MenuATS Status Menu 16 ATS Status Menu, with CalibrationATS Configuration Menu 17 ATS Configuration MenuDate and Time Menu Networking Information MenusNetworking Status Submenu DhcpNetworking Configuration Submenu OnCue Password Reset OnCue Password? YesRbus Information RbusRemote Devices Submenu 23 Remote Devices SubmenuProgrammable Interface Module PIM Status Menu 24 Programmable Interface Module PIM Status MenuLoad Control Module LCM Menus 25 Load Control Module LCM Status MenuEvent Log 26 Event LogDC2 Generator Set/ Transfer Switch Controller DC2 Controller OperationDC2 Controller Pushbutton Operation Status Displays, Generator Running Exerciser Reset Exercise ModesMaintenance Timer OnCue PasswordDC2 Controller Operation TP-6804 12/11 Scheduled Maintenance Scheduled MaintenanceService Schedule, 14RESA/RESAL Models LubricationService Schedule, 20RESA/RESAL Models Oil Change Procedure Lubrication SystemEngine Oil Recommendation Low Oil Pressure ShutdownResetting the Maintenance Timer Oil Cooler 20RESA/RESALSpark Plugs Air Cleaner ServiceAir Cleaner, 14RESA/RESAL Models Air Cleaner, 20RESA/RESAL Models Cooling System EZ-273000-J Storage Procedure Troubleshooting Fault MessagesController Service Access IntroductionTroubleshooting General Troubleshooting ChartAppendix a Abbreviations AnsiLCB Page By Kohler Co. All rights reserved

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