I have a 2009 3950 Cyclone and load 2 large and heavy 4 wheelers (Can-Am Outlander Plus) and have never had any kind of problem. And have never heard of such a problem. Sounds like a factory defect.
You are absolutely correct, "Factory Defect" by Heartlands own admission, but since it is out of Warranty tough luck. If I wasn't so ticked off it would be funny, I talked to Jim Fenner in customer service, he said that it is a defect but since Lippert is picking up the door I should be happy and that it was because of them that I got that. I informed him that Heartland had absolutely nothing to do with getting the door that was on me. I put my unit in Storage in Sept and when I got it out in April I noticed the problem, it was then that I notified Heartland, only to be told sorry. To answer Lynn1130 how long is to long, I don't know but 6-7 months for a product that you acknowledge is defective should be in realm of replacement, hopefully yours doesn't fail.
I'm not done yet, I'm going to go to Jim Fenner's boss, outline what has happened and see where it goes It won't be the end of the world if it goes nowhere, I suspect it will cost $250 to 500 to get it installed.
I can say that while I like my unit I am truly disappointed in the Company, this is almost like the auto industry years ago, as long as we the consumers tolerate it, we will see more of the same.