Found your profile on Winnieowners. Have a 2012 37 1/2 foot Winnie Adventurer on Ford chassis. Have Power Gear system: touch pad #140-1226, controller #1010001002. Replaces both with new. The system works on automatic but not on manual. So we can not callibrate it. Also we have no buzzer. Have talked to Lippert but they haven't helped. Have downloaded all their trouble shooting and that doesn't have our problem. (no flashing error codes). Do you have any clue what we can check? Maybe a dash systematic. Would the manual mode have something to do with the parking brake (I say no due to automatic mode working).