Hi all, just my 2 cents worth. My experience has been that once you reset the button and carry out the next ground run, as soon as you go W off W this allows system pressure to route through to landing gear actuation system. It is during this electric valve operation that the system senses a drop-or differential pressure at the filter which causes the false positive indication.
I agree with the air in system prob as well-Agusta reps will always advise to bleed even after the 1st or 2nd flight post disturb of hydraulic system.
In any case the W off W scenario is easy to check next time when you have a chance.
