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 ?

Some dishwasher noises are normal, like the hiss of water rushing through the water inlet fill valve, or the hum of the pump motor, or the slosh of water. But if your dishwasher is making strange sounds or is unusually loud, it's time to investigate. A thumping noise could be the drain line vibrating against the cabinet; a grinding noise could be caused by a popcorn kernel being stuck in the chopper blade area of the dishwasher.
The CL is normally indicated child lock has been activated.
Dishes typically dry by the end of the dishwashing cycle, with one exception-plastic items. Because plastic doesn't retain heat like glass, ceramic and metal do, you'll almost always see drops of water on plastic items after the cycle finishes. Rinse aid helps water drain off all dishes so they dry better. Make sure that you fill that rinse aid dispenser when it's empty. A heated dry setting also is an option to enhance drying. You may have this option turned off to save energy, but if your dishes aren't drying as well as you'd like them to, you might want to consider turning it back on. Consult your owner's manual and select the cycle options that fit your needs and your energy usage goals. If your dishes don't get dry even though you've selected the heated drying option, then the heating element could be broken or the high-limit thermostat for the element may have tripped in error, preventing the element from heating. A malfunctioning vent or drying fan could also prevent dishes from drying. Check out this troubleshooting video that could help you correct a drying problem: Dishwasher Not Drying Dishes Video.

check to see if the arms are spinning properly

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!