got this lift summer of '13 and when it feel like it it will not move forward or backwards,then will work perfect for no reason. i unplugged all connections put in dielectric gel,rusty connections that i can find. took every screw nut loosed and tightened. put handle in forward position and played with all connections i could. the only thing that work several times is unplugging computer board and turning ignition switch on several time and start working. it will mysteriously start and stop working. when it starts working it doesnt fail. if it fails it generally always fails when it sit for a while,could be few minutes event days, this is getting olddddd.