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Well ratehr than wait for your reply, the way those things work is you have a control valve and a solenoid that opens/closes the valve. If absolutely nothing is happening, and there is no air noises, it is your solenoid... you will have to order a new one. .If you give it power and there is a great deal of hissing noise, and nothing is mooving, you have a bad valve or worsecase scenario, your piston (pneumatic ram) is frozen. if thats whats going on, check to see of there are any bleed fittings on the valve assembly.. one might be open and letting the air pressure escape.
My guess is that its the solenoid.
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