That could be a tubing problem then.
The solenoid tubing can easily be hooked up backwards.
How does your tubing compare with this photo?
Use the electrical connection as a reference.
The two ports to the right side are:
-- INPUT is where your 60psi line from your regulator gets attached and that's the closest port to the electrical connector.
-- EXHAUST doesn't get anything attached to it.
The 2 OUTPUT ports opposite the (electrical connector) get your actuator hoses.
P.S. Are you touching the Festo wires directly to the battery or are you using the Solenoid Breakout/Bumper?
Here's a post by a Festo employee about a similar problem:
http://www.chiefdelphi.com/forums/sh...75&postcount=7