I am happy to take a look at it, but the major spare parts like the driver, power supply and motor are no longer available and typically given the age the problem is related to capacitors that no longer hold a charge or transistors that have overheated. I will try my best, but I just want you to have a realistic expectation that unless it is something simple like a broken power connector, the odds of repair are slim.
Tunze USA
2121 Cole Springs Rd
Buda TX 78610