My dishwasher is making a humming sound and does not rinse?

https://www.google.co.uk/webhp?sourceid=chrome-instant&rlz=1C1CHBD_en-GBGB719GB719&ion=1&espv=2&ie=UTF-8#q=Dishwashers+WILL+NOT+DRY+DISHES ...

The rinse aid or the rinse aid dispensing cap could be the reason why your dishwasheris not fully drying your dishes. Without the rinse aid, the dishes will not shed water easily and will not dry properly. First, make sure the rinse aid chamber is not empty.

How to Fix Dishwasher That Won't Dry Properly ' Dishwasher Repair

www.partselect.com/Repair/Dishwasher/Not-Drying-Properly/..this is not to say this is what is wrong with yours but have a read.
i found this on the internet.

http://www.scribd.com/doc/6462163/DD601V2-Manual

Are you using a good quality rinse aid ?

check to see if the arms are spinning properly

If the glasses are spotty from hard water try a rinse aid like Jet Dry. If they are actually dirty, depending on the brand of DW you may need to rinse them better before putting them in the DW. Not all brands are cerated equally, some do work better then others

Make certain you do not use dish soap when rinsing the dishes. Make sure you only use DISHWASHER soap when running the DW.
In fact,there is no need to rinse dishes. Remove visible scraps and put them in the DW. If it is a quality DW it will clean your dishes. Do not crowd the dishes in the DW. Most JennAir DW's are quality. Make sure the top rack can get washing action from the bottom spray arm. No pots or other water stopping utensils on the bottom rack.

it appears ur wash motor is not running.try this-start the unit and let it run for 2 min( this is the water fill period) and after 2 mins u should hear motor running and water splashing sound.u can even open the door and look for water falling from the spray arms.but after 2 mins if u hear only a humming sound and no water splash sound then motor is bad and needs to be chgd.drain motor is seperate for draining the water.

I have been told to replace the timer which I am looking to do the same to my machine!

There is a recall on the control board of many of these models, butyour problem is likely not related. It sounds like a plugged drain system or a possible bad drain pump. That's why you are hearing the pump running constantly. I have written a guide to help. It is here. Thanks!

your motor is bad.

You're describing vague, conflicting information. At first glance, I would think you have something stuck in the pump. But then it would be there in the rinse-only cycle also.
The anti-bacterial mode heats the water up to about 180F. This kills bacteria, and it also speeds up the action of the detergent. It could be dissolving whatever is in there.
The humming noise wasn't there in the rinse mode... The heater isn't on in the rinse mode - everything else is. But I've NEVER heard a heating element hum.

Cleaning the filter:
The filter is in the back in the bottom right. It's cover is held on by two 1/4 in screws. Under that is a large grate, and I sometimes find stuff clogging the screen (underwater, toward the center of the machine.) I'd start by looking there.

Good luck!