Problem with arrow keys

If I try to bring back the last command via the arrow keys, it doesn't work. Instead it types in OA if the up arrow is pressed, OC for the right, OD for the left and OB for the down key. I had this problem before, so I reinstalled the app and it was fixed for a short time. I guess it has something to do with ssh, because I recently used it quite often and then this problem occurred.