Kohler Troubleshooting for 14RESA Manual and 20KW Generator Issues
Page 67

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.

6.3.1Controller 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.

6.3.2Line 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.

6.3.3Auxiliary 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.

12

GM

1.USB port (mini-B)

2.Alternator winding circuit breaker

Figure 6-1 Controller Service Access (cover removed)

TP-6804 12/11

Section 6 Troubleshooting 67

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Contents Controllers ModelsTP-6804 12/11 Engine Identification Product Identification InformationController Identification Generator Set Identification NumbersTable of Contents Networking Configuration Submenu OnCue Password Table of Contents TP-6804 12/11 Battery Safety Precautions and InstructionsAccidental Starting Exhaust System Engine Backfire/Flash FireHazardous Voltage/ Moving Parts Fuel System Hazardous NoiseHot Parts Heavy EquipmentList of Related Literature IntroductionEmission Information NameplateService Assistance Service Assistance TP-6804 12/11 Generator Set Enclosure Descriptions and Service ViewsTransfer Switch Introduction EngineRDC2 Controller Features DC2 Controller Features Accessories Removed to Show Detail Service ViewsDescriptions and Service Views TP-6804 12/11 Generator Set Operation Prestart ChecklistGenerator Set Operation Exercising the Generator SetAutomatic Operation with Model RDT or RSB Transfer Switches Automatic Operation with Model RXT Transfer SwitchUnloaded Cycle Exercise with Complete System Diagnostics Setting the ExerciserExercise Faults Clearing a Fault on the RDC2 Controller Resetting the Controller after a Fault ShutdownCheck communication wiring between Controller Fault Messages Generator Set Operation TP-6804 12/11 Controls and Indicators RDC2 Generator Set/ Transfer Switch ControllerRDC2 Controller Operation RUN OFF Auto Controller Keypad LED IndicatorsLCD Display Autopaging Displays, Automatic ModeBattery Charging Controller PowerChanging Settings Changing Settings Setting the Exerciser at Controller Power--up Setting the ExerciserChanging the Exercise Settings Procedure to Set the Exerciser on the RDC2 Controller Main Menu RDC2 Controller MenusEngine Metering Menu Overview Menu12 Generator Metering Menu Generator Metering MenuGenset Run Time Menu Generator Set Information Menu15 Genset System Menu Genset System Menu16 ATS Status Menu, with Calibration ATS Status Menu17 ATS Configuration Menu ATS Configuration MenuNetworking Information Menus Date and Time MenuDhcp Networking Status SubmenuReset OnCue Password? Yes Networking Configuration Submenu OnCue PasswordRbus Rbus Information23 Remote Devices Submenu Remote Devices Submenu24 Programmable Interface Module PIM Status Menu Programmable Interface Module PIM Status Menu25 Load Control Module LCM Status Menu Load Control Module LCM Menus26 Event Log Event LogDC2 Controller Operation DC2 Generator Set/ Transfer Switch ControllerDC2 Controller Pushbutton Operation Status Displays, Generator Running Exercise Modes Exerciser ResetOnCue Password Maintenance TimerDC2 Controller Operation TP-6804 12/11 Scheduled Maintenance Scheduled MaintenanceLubrication Service Schedule, 14RESA/RESAL ModelsService Schedule, 20RESA/RESAL Models Low Oil Pressure Shutdown Oil Change ProcedureLubrication System Engine Oil RecommendationOil Cooler 20RESA/RESAL Resetting the Maintenance TimerAir Cleaner, 14RESA/RESAL Models Air Cleaner ServiceSpark Plugs Air Cleaner, 20RESA/RESAL Models Cooling System EZ-273000-J Storage Procedure Introduction TroubleshootingFault Messages Controller Service AccessGeneral Troubleshooting Chart TroubleshootingAnsi Appendix a AbbreviationsLCB Page By Kohler Co. All rights reserved

14/20RESAL, 14/20RESA specifications

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Another standout characteristic of the Kohler 14/20RESA and 14/20RESAL is the advanced digital control system. This system includes an intuitive LCD display that provides real-time data and diagnostics, allowing users to easily monitor the generator's performance. Features such as automatic voltage regulation and overload protection safeguard the generator and connected devices, preventing damage and ensuring stable power output.

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Maintenance is simplified with Kohler’s user-friendly design, which includes easy-access service points and a maintenance-free battery. This attention to serviceability enhances the overall user experience, ensuring that the generators operate efficiently for years.

In summary, the Kohler 14/20RESA and 14/20RESAL generators combine powerful performance with advanced technology, solid design, and user-friendly features. Their reliability makes them an excellent choice for anyone needing dependable backup power, whether for home, business, or specialized applications. With Kohler's reputation for quality backing these models, users can rest assured in their purchase decision.
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