How to reset my Wiper Blades home

Unless parts have been reassembled wrong, you probably have a loose or worn connection in the linkage. Inspect and repair.

the park switch is not working, is why they are stopping where they are,,the park switch is internal to the wiper motor..You might want to inspect the wiper motor electrical connector,, ive seen in the past where the wires are damaged at connector.so look at that before you replace the wiper motor.