Onan 5500 Wiring Diagram: A Complete Guide

When it comes to owning an RV, having a reliable source of power is essential. The Onan 5500 generator has become a popular choice among RV enthusiasts due to its reliability and performance. However, if you’re unfamiliar with the wiring diagram of this generator, it can be difficult to troubleshoot issues or make modifications. In this article, we’ll provide you with a comprehensive guide to understanding the Onan 5500 wiring diagram.

What is the Onan 5500 Generator?

The Onan 5500 generator is a gasoline-powered generator designed to provide power to RVs when no other source is available. This generator is known for its high-quality construction and efficiency, making it a popular choice among RVers. The Onan 5500 uses a four-cycle, spark-ignited, liquid-cooled engine and provides 120-volt AC power.

The generator is equipped with a control panel that allows the user to start, stop, and monitor the generator’s operation. This control panel is connected to the generator via a wiring harness that carries power and signals to the different components of the generator. Understanding this wiring diagram is essential if you need to troubleshoot issues or make modifications to the generator.

Onan 5500 Wiring Diagram Overview

The Onan 5500 generator wiring diagram is divided into several sections, each representing a different component of the generator. The sections are as follows:

  • AC Output
  • DC Control
  • Fuel System
  • Generator Set
  • Remote Control Panel

Each section of the wiring diagram is color-coded for easy identification. The AC output section is represented by green and black wires, the DC control section is represented by red and white wires, the fuel system section is represented by yellow and black wires, the generator set section is represented by blue and black wires, and the remote control panel section is represented by orange and black wires.

AC Output Wiring Diagram

The AC output section of the Onan 5500 wiring diagram is responsible for delivering power to the RV. This section consists of the voltage regulator, the AC output receptacle, and the circuit breaker. The wiring diagram for this section is as follows:

Wire Color Wire Function
Green AC Ground
Black AC Output Hot

If you’re experiencing issues with the AC output of your generator, you can use this wiring diagram to troubleshoot the problem. Check for continuity between the wires and the components of the AC output section to determine if there’s a fault in the wiring or the component itself.

FAQs

Q. What size generator do I need for my RV?

A. The size of the generator you need for your RV depends on the power requirements of your RV. In general, a 5500-watt generator is sufficient for most RVs.

Q. How do I maintain my Onan 5500 generator?

A. Regular maintenance is essential to keep your generator running smoothly. This includes changing the oil, replacing the air filter, and checking the fuel system for any issues.

Q. Can I use my Onan 5500 generator in cold weather?

A. Yes, the Onan 5500 generator is designed to operate in cold weather. However, you may need to take some additional steps to keep the generator running smoothly in extreme temperatures.

Q. How long will my Onan 5500 generator last?

A. The lifespan of your Onan 5500 generator will depend on how well it’s maintained and how often it’s used. With proper maintenance, this generator can last for many years.

Q. Can I run my RV air conditioner on my Onan 5500 generator?

A. Yes, the Onan 5500 generator is capable of powering most RV air conditioning units. However, you may need to monitor the load on the generator to avoid overloading it.

DC Control Wiring Diagram

The DC control section of the Onan 5500 wiring diagram is responsible for controlling the operation of the generator. This section consists of the starter solenoid, the start/stop switch, and the hour meter. The wiring diagram for this section is as follows:

Wire Color Wire Function
Red DC Positive
White DC Negative

If you’re experiencing issues with the control of your generator, you can use this wiring diagram to troubleshoot the problem. Check for continuity between the wires and the components of the DC control section to determine if there’s a fault in the wiring or the component itself.

FAQs

Q. How do I start my Onan 5500 generator?

A. To start your Onan 5500 generator, turn the start/stop switch to the “on” position and press the start button. The generator should start within a few seconds.

Q. How do I stop my Onan 5500 generator?

A. To stop your Onan 5500 generator, turn the start/stop switch to the “off” position. The generator will shut down within a few seconds.

Q. How do I reset the circuit breaker on my Onan 5500 generator?

A. To reset the circuit breaker, turn the breaker to the “off” position and then back to the “on” position.

Q. What does the hour meter on my Onan 5500 generator do?

A. The hour meter keeps track of how many hours the generator has been in operation. This can be useful for scheduling maintenance and determining the lifespan of the generator.

Fuel System Wiring Diagram

The fuel system section of the Onan 5500 wiring diagram is responsible for supplying gasoline to the generator. This section consists of the fuel pump, the fuel filter, and the carburetor solenoid. The wiring diagram for this section is as follows:

Wire Color Wire Function
Yellow Fuel Pump Positive
Black Fuel Pump Negative

If you’re experiencing issues with the fuel system of your generator, you can use this wiring diagram to troubleshoot the problem. Check for continuity between the wires and the components of the fuel system to determine if there’s a fault in the wiring or the component itself.

FAQs

Q. How often should I change the fuel filter on my Onan 5500 generator?

A. The fuel filter should be changed every 100 hours of operation or at least once a year.

Q. Can I adjust the carburetor on my Onan 5500 generator?

A. Yes, the carburetor can be adjusted to optimize the performance of the generator. However, this should only be done by a qualified technician.

Generator Set Wiring Diagram

The generator set section of the Onan 5500 wiring diagram is responsible for generating electricity. This section consists of the stator, the rotor, and the voltage regulator. The wiring diagram for this section is as follows:

Wire Color Wire Function
Blue Generator Negative
Black Generator Positive

If you’re experiencing issues with the generator output of your generator, you can use this wiring diagram to troubleshoot the problem. Check for continuity between the wires and the components of the generator set to determine if there’s a fault in the wiring or the component itself.

FAQs

Q. What should I do if the generator on my Onan 5500 isn’t producing electricity?

A. If the generator isn’t producing electricity, you should check the circuit breaker and the wiring connections. If these components are functioning properly, you may need to replace the stator or rotor.

Remote Control Panel Wiring Diagram

The remote control panel section of the Onan 5500 wiring diagram is responsible for controlling the generator from a remote location. This section consists of the remote start/stop switch and the harness that connects it to the generator. The wiring diagram for this section is as follows:

Wire Color Wire Function
Orange Remote Start Signal
Black Remote Stop Signal

If you’re experiencing issues with the remote control of your generator, you can use this wiring diagram to troubleshoot the problem. Check for continuity between the wires and the components of the remote control section to determine if there’s a fault in the wiring or the component itself.

FAQs

Q. Can I use a remote start kit with my Onan 5500 generator?

A. Yes, a remote start kit can be installed on your Onan 5500 generator. This can be useful if you need to start the generator from a remote location.

Conclusion

The Onan 5500 generator is a reliable and efficient source of power for RVs. However, understanding the wiring diagram of this generator is essential if you want to troubleshoot issues or make modifications. By following this guide, you should have a better understanding of the Onan 5500 wiring diagram and be able to make the necessary repairs or modifications to your generator.