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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Kohler 14/20RESAL manual Troubleshooting, Introduction, Fault Messages, Circuit Protection, Controller Service Access
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14/20RESAL, 14/20RESA specifications

The Kohler 14/20RESA and 14/20RESAL are prominent generators recognized for their robust design, commitment to efficiency, and reliability in providing backup power for residential and light commercial applications. Kohler, a brand synonymous with quality, delivers these generators with advanced technologies and essential features that cater to the power needs of modern households and small businesses.

One of the major features of the Kohler 14/20RESA and 14/20RESAL models is their powerful engine, designed to deliver consistent and reliable performance. These generators are equipped with a high-performance, air-cooled, V-Twin engine that ensures smooth operation and longevity. The ability to run on either natural gas or propane provides versatility, making them suitable for various fuel preferences and availability.

Kohler’s innovative technology is reflected in the generator's Quiet Operation system, which minimizes noise levels, allowing homeowners to enjoy uninterrupted comfort during power outages. The noise-dampening qualities make the units ideal for residential settings, ensuring that they can operate without disturbing the peace of the neighborhood.

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.

The design of these generators emphasizes durability and ease of installation. The robust enclosure protects against environmental elements, making them suitable for outdoor placement. Additionally, the generators feature a compact footprint, which is advantageous in areas with confined spaces.

Residents will also appreciate the auto-start functionality, allowing the generator to turn on automatically during a power outage, ensuring that critical appliances continue to function without interruption. The remote monitoring capabilities also enhance user convenience, enabling owners to check on their generator's status from their smartphones or computers.

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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