Valve issue

i dropped the front end and the passenger corner popped right back up, i dumped it again drained the tank and turned the compressors back on and the same front corner airs up on its own. is it a malfunction in the switchbox that caused the fill valve to pop open? its a regular 10 switch box and 1/2 SMCs

same thing happened to me but whole front u got somethign stuck in the valve take the valve apart i had the tiniest little pebble that was fucking with me, make sure its all out though cuz I than had something right after stay on one side and than it wouldnt air up cuz the dump was stuck open so i than had to take that valave apart same thing little ass pebble woulda never thought it'd cause me a nightmare.