
Newmar is a company that offers multiplex electrical systems for recreational vehicles (RVs). RV wiring has traditionally been installed similarly to electrical wiring in a house. However, multiplex wiring systems for RVs have become more common in recent years. Newmar's multiplex electrical system is designed to make the wiring throughout the RV more like that of a computer network. This system offers various benefits, such as eliminating the need for multiple monitors, displays, and switches by combining them into a single switch panel. It provides full control and monitoring of the RV's lighting, HVAC system, awnings, slides, holding tanks, leveling system, and more. The system also includes a Newmar app that allows users to control numerous features from their personal devices.
| Characteristics | Values |
|---|---|
| RV Multiplex System | Spyder Controls |
| Control Panels | Firefly Integrations |
| Control | Touchpads, push buttons, touchscreens, and keypad interfaces |
| Control Modules | Vegatouch screens |
| Control System | Silverleaf® Multiplex Electrical Wiring System |
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What You'll Learn

Newmar Mountain Aire's Silverleaf Multiplex Electrical Wiring System
The Newmar Mountain Aire Silverleaf Multiplex Electrical Wiring System is an advanced electrical system designed for RVs and motorhomes. It offers a range of features and amenities that enhance the overall experience for owners and occupants.
The Silverleaf Multiplex system allows for centralised control and monitoring of various electronic devices and systems throughout the RV. This includes lighting, HVAC (heating, ventilation, and air conditioning), water pumps, water heaters, awnings, and tank monitors. The system also provides battery and inverter status updates, accessible from multiple locations within the RV or remotely via a mobile app.
One of the key benefits of the Silverleaf Multiplex system is its user-friendly interface. It incorporates touch screens, touchpads, push buttons, and keypad interfaces, providing easy access to control modules, panels, and power distribution systems. The system's networking capabilities enable users to troubleshoot issues effectively, as demonstrated by a Tiffin Open Road owner who resolved a problem by locating a loose network wire.
The Newmar Mountain Aire takes advantage of the Silverleaf Multiplex system to offer a range of convenient features. These include the Rozie Remote Internet Connection, which enables remote control of numerous features from personal devices using the Newmar App. The Mountain Aire also boasts amenities such as Apple CarPlay on a 20" infotainment system, Samsung LED TVs, pull-out shelves, wireless charging pads, dimmable reading lights, and a powerful Cummins X12 diesel engine.
Overall, the Newmar Mountain Aire Silverleaf Multiplex Electrical Wiring System showcases advancements in RV technology, offering centralised control, monitoring, and convenience to its owners while on the road.
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Troubleshooting the Newmar Multiplex system
- Consult the Newmar Corporation website and forums: Before contacting customer support or an authorized service center, it is advisable to seek information from official sources.
- Check connections, fuses, and circuit breakers: This is a crucial step in troubleshooting electrical issues. Ensure all connections are secure and check for any blown fuses or tripped circuit breakers.
- Test your batteries: Ensure your batteries are fully charged and functioning properly. Battery issues can often be the cause of electrical malfunctions.
- Refer to error codes: If you're encountering a specific error, such as the "0-34 modules installed" issue on the Newmar King Aire, seek guidance from a mechanic or technician familiar with the vehicle.
- Comfort Drive issues: If your Newmar RV is equipped with Comfort Drive, check the connections as they can sometimes be loose, preventing the system from functioning correctly.
- Engine maintenance: The Newmar Dutch Star, being a large motorhome, requires diligent engine maintenance. A common issue is engine knocking sounds, which may indicate a need for maintenance or an underlying problem.
- Vehicle stability: If you experience instability while driving, especially at high speeds, it is recommended to inspect your tires and ensure they are properly inflated. Installing wheel sensors can also help monitor tire pressure.
- Thermostat issues: A malfunctioning thermostat can cause the air conditioning system to act erratically. Ensure proper diagnosis before attempting repairs.
- Regular maintenance: To prevent issues with your Newmar Multiplex system, perform regular maintenance, including inspecting your RV, checking fluids, and keeping up with routine tasks.
Remember, some issues may require professional expertise, so don't hesitate to seek assistance when necessary.
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The Newmar Essex Multiplex AC control panel
The Essex's multiplex system allows control of the RV's lighting, HVAC system, awnings, slides, holding tanks, leveling system, water heater, water pump, and generator. The system may feature touchpads and push buttons or touch screens and keypad interfaces, depending on the design.
To troubleshoot the Newmar Essex Multiplex AC control panel, one can refer to programming guides for the Eplex system or consider replacing the tank monitors with a See Level system, which uses external sensors and has been well-received by owners.
Newmar coaches feature the Silverleaf® Multiplex Electrical Wiring System, which can be controlled via the Newmar App on personal devices. Other amenities in Newmar coaches include Apple CarPlay® on a 20″ infotainment system, Samsung® LED TVs, and pull-out shelves in the pantry.
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The Newmar multiplex controller
The Newmar multiplex system offers a range of other amenities, such as Apple CarPlay on a 20" infotainment system, Samsung LED TVs, pull-out shelves in the pantry, and collision mitigation adaptive cruise control.
The 2026 edition of the Newmar Dutch Star also features integrated multiplex controls that manage lighting, climate, and slides via a touchscreen. This model is built on a Freightliner or Spartan chassis and offers a range of floor plan options.
While the Newmar multiplex system offers various benefits and amenities, it is important to note that some users have experienced issues with the system. For example, one user reported a system error on their 2009 Newmar King Aire, indicating that there were 0-34 modules installed and resulting in a loss of power from the eplex system. Another user reported an issue with their Newmar Multiplex controller, stating that it went blank.
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Spyder Controls' touchscreen panels
Spyder Controls is a company that designs premium custom electronic control systems for the RV, marine, speciality vehicle, and heavy equipment industries. Their multiplex electrical systems are designed with touchscreens and keypad interfaces that allow users to control and monitor various aspects of their RVs or speciality vehicles.
An RV multiplex system, also known as a multiplex wiring system, is an alternative to traditional RV wiring, which resembles standard electrical wiring in a house. The multiplex system is more akin to a computer network, offering several benefits to RV owners.
One of the key advantages of Spyder Controls' touchscreen panels is their ability to consolidate multiple controls into a single interface. This streamlined approach eliminates the need for numerous monitors, displays, and switches, making the overall system more efficient and user-friendly.
The touchscreen panels are highly sensitive and responsive, ensuring a seamless control experience. They are designed with intuitive layouts and easy-to-understand graphics, making it straightforward for users to navigate and adjust settings. Additionally, the touchscreens are often complemented by keypad interfaces, providing an alternative method of control and input.
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Frequently asked questions
The Newmar Multiplex Electrical System is an RV wiring system that is more akin to a computer network than traditional house wiring. It allows for the control and monitoring of an RV's lighting, HVAC system, awnings, slides, holding tanks, leveling system, water heater, and water pump.
The Newmar Multiplex Electrical System offers several benefits, including the ability to control and monitor multiple systems through a single switch panel, eliminating the need for multiple monitors, displays, and switches.
The system includes touchpads, push buttons, touch screens, and keypad interfaces to control modules, panels, power distribution systems, and other sensor technologies.
Yes, the Rozie Remote Internet Connection feature allows users to control the Silverleaf® Multiplex System from a personal device.
Some common issues include AC control panel problems, system errors, and slide locks not closing properly. These issues may require advanced electrical troubleshooting skills and diagnostic equipment for resolution.







































