Replacement controller assembly for a HappiJac power bed lift system, restoring reliable control over raising and lowering your bed. A direct swap for a failed or malfunctioning original controller board.
The Lippert 2021034400 is a replacement controller assembly for HappiJac power bed lift systems, common in 5th wheel RVs and toy haulers. HappiJac bed lifts use vertical motion rather than a horizontal slide-out to maximize interior space, and this controller is the circuit board that manages the direct-drive motor raising and lowering your bed.
If your bed lift has stopped responding, moves erratically, or won't hold its position, a failed controller board is a common cause, and this is the direct replacement part for it.
Manages the motor that raises and lowers your bed lift
Drop-in swap for a failed or malfunctioning controller
Manufactured domestically and backed by a 1-year warranty
Built specifically for HappiJac power bed lift systems
This is the controller assembly only — the wall switch is not included and is sold separately (SKU 2021119994). Confirm you already have a working switch, or plan to order one alongside this controller.
In The Box: • Bed Lift Controller Assembly (Circuit Board) Not Included: • Wall Switch (sold separately, SKU 2021119994)