when I open my dish washer it’s full of water. It drains after the cycle. When I initially open it, it’s dry. If I go some where and come back then put up the dishes it’s full. Let it set over night empty and dry the next morning it’s full of water. I put draino down the sink, cleaned out the trap. used the shop vac on the drain. and cleaned the screen on the drain on the inside of the dishwasher. There is no obstrucion that I can see. So is it a faulty valve of some sort on the dishwasher? or something else? and How do I fix it.
datatech2001
A model number may help others help you.
Is the drain tube looped up at least a foot higher than the point where it enter the house plumbing.
If not it may be sink drain water leaking back into the unit.
If drain is OK then your water inlet valve is probably not sealing correctly and need replacing.
It is usually behind the kick plate on the right hand side.