rain sensor not work

hi
month ago i have changed front window. in my garage they had to disconnect the rain sensor to change the window, after that they connect it back the rain sensor dosn't work but the headlight automatic is work.
when i puting the right stalk (wipe) for the auto position it turning on the wipes every 3-5 seconds forever until i turning it's off and its whoud work only with the rain
can you help me with this problem