My Saeco magic deluxe needed the circuits

try this.

hit the external dosage button. Its the button on the top middle that controls when you want to put grinds in from the external shoot.

Do not place any coffee in there. then just press the normal brew button. it should brew more or less a cup of water.

then try brewing a coffee like normal and see if the problem fixes.

this happens because there is a little door in the grinder that hits a microswitch that tells the grinder to stop grinding.

This is supposed to happen when the grinder fills the brew group enough to click the microswitch.

Sometimes it does reverse itself like this.

The only other solution would be to open the grinder up and vaccum all grounds out and vaccum the grind shaft above the brew group on the side.

This will cause the door to go back to normal position.

If it doesn't work after that, the door or microswitch has gone faulty. But that is an extremely rare situation.

Hope this helps.