How These Systems Work
CAN bus (Controller Area Network) lets multiple modules — lighting controllers, slide controllers, leveling jacks, tank sensors — talk to each other and to a central touchpad over a shared two-wire network, instead of...
Owner guide
RV CAN-Bus & Multiplex Control System Guide (Lippert OneControl, Firefly, Spyder)
Newer RVs increasingly run lighting, slides, awnings, and leveling through a single digital network instead of dozens of dedicated switches and relays. Lippert OneControl, Firefly, and Spyder are the three you’ll run int...
Active corridor: Montana · Wyoming · Idaho · Washington — case-by-case beyond.
Field notes
Newer RVs increasingly run lighting, slides, awnings, and leveling through a single digital network instead of dozens of dedicated switches and relays. Lippert OneControl, Firefly, and Spyder are the three you’ll run into most. HOW THIS IS DIFFERENT FROM TRADITIONAL WIRING: on a multiplex system, one damaged or disconnected node on the CAN bus can take out several unrelated functions at once (lights AND slides AND leveling), because they all share the same communication network rather than separate dedicated cir...
Lippert OneControl
RUNS LIGHTING, SLIDES, LEVELING & AWNINGS ON MANY NEWER TRAILERS
Firefly & Spyder Multiplex Systems
MORE COMMON ON HIGHER-END MOTORHOMES
Multiple Systems Acting Up at Once?
That’s the classic sign of a shared network problem, not several unrelated failures. We can talk through what to check remotely, or bring real network diagnostic tools to your rig.
Related: All guides · Book a Service · Pricing
Pricing teaser
Trip fee $75 within 30 miles, then $1.50/mi. Labor ~$150/hr (1-hour minimum, billed in 30-minute increments). Diagnostic $150 applied toward repair if you proceed.
Active corridor: Montana · Wyoming · Idaho · Washington — case-by-case beyond. Credentials (text): Victron Professional Certified Installer · weBoost Authorized Installer · Peplink Certified Associate · Dometic Professional Certified.