It is a ten stop. When on automatic running up from 1 between 6 and 7 it will drop u1 and u2 and pick d1 and d2 and start going down. If I hit a hall call on the way down it will answer it. When on inspection running up from 1 on about 3 u1 and u2 will drop and pick right back and keep going up. If I start on 2 it does the same on the 6th flr. Has any one experienced any thing like this or know what could cause it. Thanks