All that being said, I had one that would MLT because the car would move up when the pump was recirculating oil during viscosity control. Maxton valve bypass wasn't adjusted properly.

I also had one that would intermittently give me a VLT due to a bad door zone wire connection, so the car would start to level down and not see door zone and then keep leveling down until it hit the down direction limit switch.

Also on the old green board motions had one with bad UP relay contacts. If I remember correctly the pump would be running in bypass, but the up and up slow valve coils weren't getting voltage due to relay contact failure. Could also be "H" relay contact failure not energizing the up fast valve coil and intermittently leveling all of the way up.