[Greg McKaskle]

Not that this is my area of expertise, but I'd recommend searching the NI site for cleaning instructions and see what falls out and if this improves things. If that doesn't improve things, try using a different solenoid module. You can also change the code to use the second solenoid module (slot 8). If none of these help, I'd contact support and see if they have further tests or would like to have it sent in for repairs.

Greg McKaskle