the solenoids are the same for all wgp/eblade cockers and use the same gasket. theres 2 screws on the bottom that hold it to the manifold, pretty simple to get to it. unplug the cocking noid from the board so you have some slack in the wire to pull it out though.
try cleaning the gasket and putting it back in place with a little grease on it, lpr might have just been turned up too high and blew it out of place. if that doesnt work then you can get a new gasket at www.paintballgateway.com
its pretty hard to blow the solenoid at least, they're designed to vent before the pressure gets high enough.