93 Protege wipers won't turn off after a rain
 

This is a basic box. No cruise control. Turn signals work fine, wipers come on fine and work during rain, but for a few days after it rains the wipers run every time you turn the car on, no matter the wiper setting. After things dry out after a few days they turn off. I've replaced the motor on some bad advice, so I know it's not that. Any advice on what to do? Thanks