We have a problem with 1994 Passat Wagon's Heater blower controls.
No Low or High Speeds . We do have #2 & #3 speeds ? Any common problems with theese units ?

If there is no high, but does have other speeds I would first suspect the fan switch.

Thanks . the problem was the switch .We cleaned the contacts on the rear of the switch . bent contact tab & now works fine.
New control would have been $150.00 :)