My windshield wiper will turn on after a snow storm

test fuses

Hello, without seeing it I am guessing, but start by checking to make sure the wiper arms are tight and that all the fuses are good. It could be a motor, by that is less likely than a blown fuse or loose arm. Jim

I agree with the answer above, if all ok with that, did you get a circuit board with the new motor or did you transfer to new motor, if you transferred you may have a circuit board issue, the board sets speed, park mode and powers the motor