Had this DW but about 1.5 years (out of warranty) and the tub does not fill. No water coming into the machine. I know there's a water valve, float and obviously a timer, but don't know the systematic way to troubleshoot the machine to ascertain why the tub isn't filling. Did check the air gap and it's clear, at least at the counter level. Disconnected the water line at the supply inlet valve and there's water flowing there. Any help would be sincerely appreciated as I know these type forums have a wealth of knowledge helping "shade tree mechanics" such as myself. Thanks to all in advance.

denman: Thanks for your response. I checked voltage at "fill cycle" and had 123V. Tripped the breaker, took valve off, cleaned and flushed and put it back on. Loaded washer with "clean" dishes, selected "Normal" cycle, "Heated Dry" and turned on. Tub filled fine, so closed door and let it run remainder of cycle. Soap dispensed and 3 hours later I could still hear a Hum coming from the machine - "Normal" and "Heated Dry" lights were still on as was the machine "On" light. Thinking this not to be normal (time wise), I opened the door and noticed the machine had drained, and hot air/water was felt coming from the machine. I touched the HEATED DRY keypad, the light went out, touched the ON/RESET keypad, light went out and the NORMAL light remained lit. I closed the door, looked at it about an hour later and the NORMAL light too was out. I'm not sure whether the darn thing is working correctly or not. Do you have a feel for how much time should elapse between START OF FILL through complete DRY and machine shutdown? I suspect that something is still amiss with this machine, but just can't put my finger on what it is. Could the Control Keypad, which, I assume, controls Cycle sequencing be bad? I'm really interested to know how long the machine should run - Start to Finish - "NORMAL" Cycle?? Thanks for your response and thoughts. This is the quietest Dishwasher I've ever heard and I have to work at hearing it run, but 3 hours plus seems like an exorbitant run cycle to me. Thanks again