My Lionel 252 crossing gate has stopped working. A week or two ago I notice the arm would lower as the train traversed the 145 contactor but only about 2/3 of the way. Yesterday it stopped working completely. When I manually press on the contactor, the white light on the base will illuminate but the arm does not go down and the red lights on the arm do not light up either unless I manually lower the arm to the full down position then the red lights turn on.
I checked the wiring, checked the plate's function and re-positioned it in different locations to no avail. I'm wondering if this problem is in the gate or the contactor or perhaps something else. Thanks, as always, for any expertise provided.