Labview solenoids...

[Mark McLeod]

The power/ground to the solenoid could also be reversed and get a similar reaction. A simple test for that possibility is to reverse the connector at the solenoid module. Having it backwards doesn't harm the solenoid, and if it has an indicator light, then the light will work, but the solenoid won't move.

Another potential cause depends on the type of solenoid you are using.
Older plastic Festos had two conflicting wiring schemes.
What model is it?

[Wildcats1378]

Actually it works now. Turns out it was the wrong power cord. Thanks for the help everyone! Really appreciate it!