Need help diagnosing my Accusump Accumulator

[frankym]

Hey guys, need help figuring out what's going on. I have the accusump 3 quart accumulator with the solenoid valve. I usually turn the key, flip the switch on the dash and the oil pressure builds to about 40 psi (on the dash), then i start the engine, and turn the solenoid switch off. Today, I went to flip the solenoid switch on the dash. I believe i saw the pressure guage on the dash move to 15 psi and then back down to 0. I added a little air pressure to the accumulator (brought it from 45psi to 60 psi).

So now the large accumulator guage is registering 60 psi after going for a ride, but when i go to stop / start the motor and flip the dash switch, my dash pressure guage does nothing. Everytime i flip the dash switch, the light indicator comes on. I don't hear anything in the engine compartment but i never noticed if that happens anyways. I can't tell if i lost the prime and need to add oil or if i should be hearing the valve open, maybe i blew a fuse? Looking for help completing the diagnosis.