Could be the control or an actuator. The actuator is the more likely of the two.ok so mine is stuck to the floor only no matter where i change to controls to. What could be causing this? I would love to be able to have air other than on the floor!!! Not driven the car to much anyway got it for a seal on ebay $800 bucks and it was worth it!! The guy who sold it didnt really take to good of care of it. It looks great inside and out but had to change the FPR, Break line, and got the sunroof out and the track is bad. But it runs like a top now has 107000 miles on it and it sure is strong! I'm just fixing everything back. Still super happy I bought it I love working on cars.