I have relatively new Kenmore dishwasher that started dripping from the overfill float assembly. I am trying to diagnose why. It drips during wash cycles and leaves a total of about a cup of water for a complete cycle.

What I have done:
Overfill float and switch work (shut off fill when tripped).
Dishwasher is level (raised slightly in front now, no change).
Ran error codes, nothing.
Ran without detergent to verify it is not over-sudsing, no change.
Ran empty to make sure not caused by deflection from badly arranged dishes, no change.

So... I am wondering if the dishwasher is simply over-filling some on its own (but not enough to trip the overfill switch) and causing some spray from the arms when it is running to get up under the float head and drip down the float.

A couple of questions to move ahead:
I do not have a pressure tester to check incoming water pressure, but my house seems generally to have high water pressure (city water).
Is the fill cycle regulated by timer or by a float?
How full should the dishwasher get for a wash cycle? Right now it is about 3/4" deep above the sump cover screen (standing water in the bottom of the tub). Is that too full for normal operation?
Might a flow restrictor solve this?
Can I adjust the fill timers?

Thanx a mill :)

I have had the float apart, it is clean. No cracks visible in the spray arms or crud blocking holes. Screen filter is flat.

Any other ideas?

I notice that the underside of the float cap has a cut out gap on one side where it would wrap around the post it sits on. In essence, one side is not blocked underneath like the other is. Is that supposed to be there?