Can you send wiring pictures to [email@example.com]? If the blue LED is on, that means power is being delivered to the solenoid, and the valve should open. Whether it is a scheduled schedule, or a manual run through the remote shouldn't make a difference. If the blue LED is showing, that should be opening your valve.
Do you have a master valve by any chance?
[firstname.lastname@example.org] should be able to troubleshoot and help determine your root cause.
Hope this helps. If not, we can dig deeper.