We have an integrated whirlpool dishwasher ADG7560 which has stopped rinsing. The programme runs for around 10 minutes, then stops and machine beeps continuously. I have cleaned the filters and spraying arms etc but the fault remains. Now that we have pulled the machine out, we can see that one of the reservoirs (attached to the base of the appliance) is full of fat. From other posts, I think this reservoir contains the water sensor. How do we clean this reservoir out? It looks like the reservoir is a sealed unit, but maybe it isn't? Does anyone know how to access it, to remove the fat?

Look in these manuals and see if you see one like yours: https://dl.dropbox.com/u/8010163/Whirlpool_Kenmore%20Dishwashers.zip
There should be one close to the one you have. The best de-greaser you can buy is alkaline coil cleaner found at your local HVAC parts supply house. Be very careful using it and wear thick rubber gloves; store away from children. A friend of mine gave someone some and put it in a Welch's Grape juice bottle and the wife bought groceries and put the groceries in the back of the pick-up with that bottle whereupon a child got it and took a swallow and it almost killed him, causing serious injuries. It's liquid sodium hydroxide and does a very good job cleaning grease and ac coils as long as you use proper precautions.

Many thanks, will try that!