LA400CONTUL Complete control box and circuit board for LA400DCU [LA400CONTULMC]

LiftMaster LA400CONTUL — Complete control box and circuit board for LA400DCU [MC]. Genuine LiftMaster replacement part, fits LA400DC, LA400U, LA400UL, LA400DCU.

The logic board is the operator's brain — it reads the limits, the safety inputs and the radio, then drives the motor. An operator that runs one direction only, ignores the remote, or resets mid-cycle is usually reporting a board fault.

Not sure this is the right part? Send us the model number from your operator’s data plate and a photo of the part you are replacing — parts@gatehousesupplies.com or 866-965-5599. We install and service this equipment and would rather confirm it than have you order twice.