How to Repair Bifold Door Top Roller Guide If your bifold doors have become stuck, they probably require a little attention. They could need to be cleaned and lubricated or adjusted. The issue could be caused by an unfastened bolt at the top pivot or by the top guide roller. https://repairing-bifold-doors50538.mpeblog.com/54463397/where-are-you-going-to-find-bi-fold-door-repairs-be-1-year-from-now