Bifold closet doors are a common sight in many homes. They come in a variety of styles and use less space then swing out doors.
As a Handyman I often get calls from clients asking for repairs to their bifold doors. Sometimes it is simply a matter of snapping the doors back into their tracks but other times require more involved repairs. Although they don't have a lot of parts there are several things that can go wrong with bifolds.
A bifold door has metal pins that protrude from the top (2 of them) and the bottom (only 1). The bottom pin and one of the top pins is stationary while the other top pin travels inside a metal track. Sometimes the pins pop out of their holders or the door can crack at the pin location causing the pin to fall out. Other times the pin holder comes loose causing the door to fall over! The knobs can also work their way loose and need to be repaired. Hinges can also come loose or break with rough handling.
If you are a handy DIYer then you can probably deal with some of these repairs yourself, but if not it may be best to give your local Handyman a call!