The newer remotes are 5-wire which means not only do they provide a connection to the in/out solenoids, the remote's in/out switch also must provide the missing (by design, it's there for safety reasons) ground connection for the control side of the solenoids. If you know anything about electrical circuits, you can always remove the solenoid cover and find the control (lighter gauge wiring) side of the solenoids that is the ground side and temporarily provide an external ground for them and then try the remote switch to see if it works. If it works, the remote's ground circuit isn't working which means it may be nothing more than a bad remote control. Have you tried a different remote? Can you borrow one from a buddy to test it out?