Everytime i turn my windshield wipers on, or mist my windshield, they will go through the cycle, go all the way down, and then come all the way back up and stay there. I've been driving around with my windshield wipers vertical with my windshield for a week. How the hell do i fix this? I've tried forcing it back into position and then hitting the wiper button, but it always goes right back up