Kitchen aid proline coffee maker KPCM 050 begins to brew then stops with E2 message. I have attempted to descale with vinger and water but I continue to get the E2 message. I unplug and wait 30 second, but after a couple minutes it will run again. The process gets repeated three times to run a complete 12 cup cycle. HELP

You will know the machine wants to be descaled when the red alert triangle is blinking (lower right part of control pad)
1) Machine must be OFF and cool in order to descale the machine!
2) Fill the water container to MAX with very warm faucet water.
3) Add a packet of Illy / Urnex Dezcal or similar citric acid based descaler to the water, stirring it in until dissolved.
4) Replace the water container into your Illy Francis Francis X7.1 Iperespresso machine.
5) Place a 1L (minimum) plastic catch bowl (or other suitable container) under the brew head AND frothing wand, which should be pointed toward the center of the stage under the brew head (as in video above).
6) Power the machine ON.
7) IMMEDIATELY depress and hold only the BREW (coffee cup symbol) until the machine emits THREE SHORT BEEPS, followed by ONE LONG BEEP. Release the BREW button after the long beep.
8) Press the BREW button again, as you would when brewing a cup of espresso.
9) The machine will begin to PULSE, and the STEAM BUTTON will blink. The machine will alternate between pulsing water through the brew head opening and the frothing wand. This will continue until the water container is EMPTY. Be ready to remove the water container, and IMMEDIATELY refill it with cool (Brita filtered or distilled is best) water, and replace it as quickly as possible. The machine WILL NOT STOP THE DESCALING CYCLE, so replace the water container as quickly as you can. You will probably need to empty the catch bowl at least once or twice during this procedure, and the water will be VERY HOT, so use caution!
10) The machine will continue to pulse between the brew head opening and the frothing wand.
11) The machine will stop pulsing at some point during this second tankful, and the BREW button will begin to BLINK, with an alternating BEEP between blinking. If there is very little water left in the water container, fill it up with cool water again. Empty your catch bowl if it is full and you haven't already done so! Once everything is back in place, press the blinking / beeping BREW button, which will begin to rinse the machine through.
12) The machine may repeat Step 11 more than once!
13) The machine should now come out of DESCALING CYCLE on its own, with the red POWER button illuminated, along with the blue BREW button being on and solid.
14) Run one or two BREW cycles, with cool, filtered water.
15) Run the STEAM cycle for a few moments, as you would when frothing for a beverage, to ensure no descaler remains in the frothing wand.
• Your Illy Francis Francis X7.1 Iperespresso machine is now descaled! see less

Needs to be reset to factory specs. Read manual for instructions.

Hi,

Here is a tip that I wrote that will give you some things to try that will helpyou get your Keurig coffee brewer workingagain.

Keurig CoffeeBrewer not making a full cup of Coffee
heatman101

I cant help you but I am having the same problem..I have to turn my machine off to get the brewing light off...

Here are the user instructions for the Bosch Tassimo coffee maker type CTPM01: Fill the water tank with fresh water. Turn on the coffee maker by pressing the power button. Wait for the indicator light to turn green. Place a T-Disc (coffee or other hot beverage) in the brewing unit. Press the start button to begin the brewing process. Wait for the brewing process to complete. Remove the cup and discard the used T-Disc. Repeat steps 4-7 to make additional cups of coffee or other hot beverages. Additional Tips: Always use fresh water when filling the water tank. Only use T-Discs designed for use with the Bosch Tassimo coffee maker. To descale the coffee maker, use the descaling T-Disc provided with the machine or a descaling solution recommended by the manufacturer. Regularly clean the brewing unit and other removable parts according to the manufacturer's instructions. Refer to the user manual for additional information and troubleshooting tips.

The Coffee Maker can be descaled using
a packaged descaling agent or vinegar.
Always mix the descaling solution using
cool water.
• When using a descaling agent, follow
the directions on the package for the
recommended amounts of descaling
agent and water to use.
• When using vinegar, fill the carafe with
a solution consisting of 1⁄2 vinegar and
1⁄2 water.
Descaling Steps:
1. Before descaling, always remove the
water filter (see “Installing the Ion-
Exchange Water Filter” on page 7) and
make sure the brew basket contains
no coffee or coffee filters.
2. Run the Coffee Maker through a
complete brewing cycle using a full
carafe of the descaling solution.
3. If the cleaning needed indicator lights
after the brewing cycle is complete,
repeat Step 2 using fresh descaling
solution. Keep repeating Step 2 until
the cleaning needed indicator no
longer lights after brewing.
4. Rinse the Coffee Maker by running
it through two brewing cycles using a
full carafe of fresh, cool water
each time.
5. Wash the brew basket in hot, soapy
water and rinse with hot water. This
part can also be washed in the upper
rack of the dishwasher.
6. Reinstall or replace the water filter.
Replace the filter every three months
under normal usage, or more often
with heavy use.

Suggestion was Descaling the Coffee Maker from KitchenAid Phoebe (I'm guessing customer support)

http://kitchenaidconversations.com/forums/topic.asp?TOPIC_ID=14441&SearchTerms=err+2
Cleaning scale from coffee maker DO NOT USE THAT MUCH VINEGAR! Put a tiny bit of vinegar in the carafe and fill carafe the rest of the way with water. Run that vinegar/water through machine. Using another container, fill machine with plain water and run that through. Repeat until the vinegar taste is gone. If you do not run lots of plain water through the machine after, your coffee will taste like...um...disgusting! Also, use a spell-checker before improving this posting. 

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To clean hard water deposits from a coffee maker use distilled white vinager. You may need to use as much as a gallon if the scale buildup is really bad. Fill clean coffee pot one half full of vinager and run through machine as if making coffee. Repeat this process several times using fresh vinager until it comes out clear. Do this once a week and your maker will work much better. 
Thanks.

In reading the manual for this coffee pot, it needs to have the descaling procedure run. The manual lists running a mixture of 6 cups water and 6 cups vinegar in a normal brew cycle...twice to clean hard water deposits from the machine. It says to make sure to remove the filter basket. Once the procedure is complete, unplug the unit and replug in to remove the E2 code.