Quoted from Concretehardt:
Well besides my trap door getting stuck in the up position every few games my DILE #117 is flawless. Has anyone opened a trouble ticket on the trap door issue? I hate to disable it in settings, but I don't want to have to lift the playfield every time the trap doors sticks open.
Mine was doing that as well. The small cross spring that releases the lock is to tight for the coil to push. Stretch the spring a little with a screw driver. Problem solved