[lizzie_1610]

Double check that wires are properly connected both in the robot and in the program, and that the program matches the robot (Relay 1 really is in Relay 1 etc.). If you reference the compressor or solenoids in more than one place in the code, make sure that the refnum name is completely identical in all places (its easy to accidentally put in spaces). But it could just as easily be that a wire is bad and needs replacing so try other wires or testing the ones you have hooked up elsewhere.