About two years ago, water was leaking from under the dishwasher. I pulled the selinoid and it appeared melted around the casing. I replaced it and that fixed the problem.
Now the washer is leaking again, I pulled the selinoid, but it looks fine. Can the selinoid still be bad if it looks alright? Should I be looking at a different part to replace?

denman,
Yes, I was referring to Item 497. First time the washer leaked I pulled the entire unit from under the counter, disconnecting power and water supply. Replaced the melted solenoid unit, and as I said before, it has worked fine, until now.
This time instead of pulling the entire dishwasher, I found I could pull off the base plate covers, and access the solenoid, but as I stated, it looks fine. You mentioned Item 417. I guess my next step would be to lay on the floor with a flashlight, with the base cover plates off, start the washer and see if I can see where the water is leaking from, (and then mop up the floor).
Being an amatuer repairman, I tend to trouble shoot by observation and process of elimination to pinpoint the problem. Any other suggestions?

Glen