My Lift Doors, except the MLD BUS lft doors, undertakes any repair of lift BUS doors that are not supported any more, from other companies, for spares parts and technical support.
We also have spares kit that includes motor, circuit board and transformer which can, with the proper connection, adjust to retractable lift BUS door even if its not represented any longer for spare parts and technical support
Ask for an affordable offer, according to your project