Kohler 8/10/12RESVL manual Troubleshooting, Problem Possible Cause Corrective Action

Page 72

6.5 Troubleshooting

Figure 6-1 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 6-1.

	The generator	Battery weak or dead.	Recharge or replace the battery.
	set does not
	set does not	Battery connections reversed or poor.	Check the connections.
	crank.	Battery connections reversed or poor.	Check the connections.

		Fault shutdown.	Check the controller display for fault messages. See
		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.

		Gererator thermostat tripped.	For trips other than temperature (nuisance trips), reset
			the thermostat. See Section 2.6.

	The generator	Air cleaner clogged.	Clean and/or replace the air cleaner.
	set cranks but
	set cranks but	Battery weak or dead.	Recharge or replace the battery.
	does not start,	Battery weak or dead.	Recharge or replace the battery.

		Battery connection poor.	Clean and tighten the battery connections.
	starts hard,	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
	operates	Low oil pressure shutdown.	Check for oil leaks. Check the oil level and add oil if
	erratically.	Low oil pressure shutdown.	Check for oil leaks. Check the oil level and add oil if
	erratically.		necessary.
			necessary.

		Fuel pressure insufficient.	Check the fuel supply and valves.

		Engine malfunction.	Contact an authorized Kohler distributor/dealer.

		Gererator thermostat tripped.	For trips other than temperature (nuisance trips), reset
			the thermostat. See Section 2.6.

	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 junction box).
			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 junction box.)
			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 Plus.
		switch, ATS, or OnCuer Plus.

		Engine malfunction.	Contact an authorized Kohler distributor/dealer.

Figure 6-1General Troubleshooting Chart

72 Section 6 Troubleshooting

TP-6880 10/14

Image 72

Contents RDC2 TP-6880 10/14aAccessory Number Accessory Description Product Identification InformationGenerator Set Identification Numbers Controller IdentificationTable of Contents Scheduled Maintenance TroubleshootingDC2 Controller Operation Safety Precautions and Instructions BatteryAccidental Starting Accidental starting Can cause severe injury or deathEngine Backfire/Flash Fire Exhaust SystemCarbon monoxide Can Cause Fire Can cause severe injury or deathFuel System Hazardous Noise Hazardous voltage Will cause severe injury or deathHeavy Equipment Hot PartsTransfer Switch Literature Accessory LiteratureIntroduction List of Related LiteratureNameplate Emission InformationGenerator Set Application Emission Compliance PeriodService Assistance Service Assistance TP-6880 10/14 Descriptions and Service Views RDC2 Controller Features DC2 Controller Features Accessories Carburetor HeaterProgrammable Interface Module PIM Load Control Module LCMService Views 12143Service View Prestart Checklist Generator Set OperationGenerator Set Operation TP-6880 10/14 Exercising the Generator Set Generator Set OperationAutomatic Operation with Other Transfer Switches Setting the ExerciserUnloaded Cycle Exercise with Complete System Diagnostics ExercisePower Failure During Exercise Cycle System DiagnosticsUnloaded Full-Speed Exercise Loaded Full-Speed Exercise with RXT onlyFaults ATS Communication ErrorsResetting the Controller after a Fault Shutdown ShutdownsFault Message Shutdown SD Condition Check 3Controller Fault Messages Fault Shutdown SD Condition CheckGenerator Enclosure Thermostat Generator Set Operation TP-6880 10/14 RDC2 Generator Set/ Transfer Switch Controller Controls and IndicatorsRDC2 Controller Operation Controller Keypad LED Indicators ButtonButton Function LED OperationLCD Display Active AlertController Power Battery ChargingChanging Settings Procedure to Change SettingsChanging Settings on the RDC2 Controller 7Changing SettingsSetting the Exerciser Setting the Exerciser at Controller Power-upChanging the Exercise Settings Procedure to Set the Exerciser8Procedure to Set the Exerciser on the RDC2 Controller RDC2 Controller Menus Main MenuOverview Menu Engine Metering MenuGenerator Metering Menu Voltage CalibrationGenerator Set Information Menu Genset Run Time MenuSetting the Exerciser Adjusting the Display ContrastGenset System Menu Voltage Regulator VR Voltage AdjATS Status Menu Screens on this page do not appearATS Configuration Menu Changing ATS Configuration SettingsDate and Time Menu Networking Information MenusNetworking Status Submenu DhcpNetworking Configuration Submenu OnCue Plus Password PasswordDhcp Submenu 21Network Configuration Submenu Rbus Information 22RBUS Information SubmenuRemote Devices Submenu From FigureProgrammable Interface Module PIM Status Menu Load Control Module LCM or Load Shed Kit Menus 25Load Control Module LCM or Load Shed Kit Status MenuProcedure to View Event History Event LogRDC2 Controller Operation TP-6880 10/14 DC2 Generator Set/ Transfer Switch Controller DC2 Controller OperationController Keypad Button Button FunctionLED Indication Description5Status Displays, Generator Running Exerciser Reset Exercise ModesMaintenance Timer OnCue Plus PasswordDC2 Controller Operation TP-6880 10/14 Scheduled Maintenance Scheduled Maintenance Service Schedule Oil Change Procedure Lubrication SystemEngine Oil Recommendation Low Oil Pressure ShutdownReset the maintenance timer on the controller Drain the oilReplace the oil filter Fill with oilResetting the Maintenance Timer Spark PlugsModel Resv RDC2 Model Resvl DC2Air Cleaner Service Air Cleaner, 8RESV/RESVL ModelsPaper Element Service Air Cleaner, 10/12RESV/RESVL Models Cooling SystemHazardous noise Can cause hearing loss EZ-273000-J Storage Procedure Scheduled Maintenance TP-6880 10/14 Troubleshooting Fault MessagesIntroduction USB PortTroubleshooting Problem Possible Cause Corrective ActionAppendix a Abbreviations AnsiLCB Page TP-6880 10/14