I guess I would first start by making sure the valve would relevel properly, many overload and mlt trips that are intermittent can be solved by making the car relevel and be sure that the car does not overshoot up relevel, or overshoot down relevel, causing a jerking off sequence that eventually trips ol or mlt. Most guys will check this so I don't think it could be this easy. I have had one motion control do what you said and the onlynway we found it after many months of taking guesses was to put a analyzer on the system and check as ,any signals we thought appropriate. After a couple weeks it failed, and we played back the analyzer to find that during the night some one would take the car to the op floor and it would sit there for an hour or so and slowly leak down, and start chattering the Lu signal, this should have releveled the car, but the up normal limit was set incorrectly, and Lu could not move the car up, it would then mlt. Set limit correctly and that was the end of many months of calls. Ok now I'm thinking it can't be that easy, let me think about this awhile .. Ok how about the intrnal motor overload getting to hot and opening, then get a Lu signal and the car won't run up until thermal cools down, then it starts up, but thermal opens again and continues this cycle until mlt
