Hi, the Fap door handle on our motorhome is having issues with opening. It looks as though it's been replaced as the date on the rear is 2013 and the van is a 2005. The issue is from the outside I can't always get it to open! When the handle is pulled it isn't moving the catch far enough. I have taken it off to have a look and everything seems in order, the issue is the bar that is on the back of the handle seems to have a little play in the handle body (not sure if they are all like that?) so it's not pushing the arm far enough to fully open the catch on the door frame. I tried to put something over the metal bar to make it bigger so it pushes the arm further, but it then catches on the body of the handle. My thought is to try another handle? But they are not cheap! Is it easy to change the lock barrel over to anew one?