Replacement control unit for Lippert's Ground Control TT automatic leveling system, driven by Hall Effect technology for precise, accurate leveling. A direct fix when the leveling system's brain, not the touchpad, is at fault.
The Lippert 421483 is the control unit for the Ground Control TT automatic leveling system, the component that processes input from your touchpad and drives your leveling jacks. Ground Control TT levels your travel trailer in less than three minutes, and this controller is what makes that precision possible, using Hall Effect technology for accuracy other systems can't match.
If your leveling system's jacks are failing to respond correctly, showing error codes, or running continuously without properly leveling, the issue is often the controller itself rather than the touchpad. This is the direct replacement part for that scenario.
Precise, accurate leveling performance
Fast, automatic leveling cycle
Fixes controller-level failures, not touchpad issues
Purpose-built for this exact Lippert leveling system
This is the control unit (the system's "brain"), not the touchpad — the touchpad is a separate part, number 421484. Controller failures typically show as error codes, jacks running continuously, or the auto-level cycle failing outright, whereas touchpad failures usually appear as an unresponsive touch surface, cracked faceplate, or dead LEDs. Confirm which component has actually failed before ordering. Part Number: 421483 | Manufacturer Reference: 20242B
This controller is specific to Lippert's Ground Control TT travel trailer leveling system. It is not interchangeable with the Level Up Brain Box Controller (807615) used on Lippert's Level Up systems.
In The Box: • One (1) Leveling System Control Unit