Directory shows "Ready to Brew". How do I start

Unsure if you are having any lucked with the Page 67 of free online manual:

https://www.mieleusa.com/pmedia/ZGA/TX2070/10685710-000-01_10685710-01.pdf

Quoting from the manual:

F73 or Check the brew unit message.
Possible cause and solution
The brew unit cannot be positioned correctly.
Turn the appliance off with the On/ Off button.
Remove and clean the brew unit (see "Removing the brew unit and cleaning it by hand").
Push the coffee ejector of the brew unit into the correct position (see diagram) (Illustration in online PDF manual.)
Do not insert the brew unit. Close the appliance door and turn the appliance on with the On/Off button.
This will initialize the brew unit motor and put in back into the start position.
When "insert the brew unit" appears in the display, open the appliance door and put the brew unit back in the appliance. Then close the door.

Clogged exit port from heater section. Clean as per manual page 18.

Prime and reset from scratch.

Purge and reset to original values. See page 17 of manual.

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

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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

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Hi,

Here is a tip that I wrote that goes into detail about how to descale yourKeurig Coffee Brewer

How toDescale your Keurig Coffee Brewer

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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

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http://www.fixya.com/support/r5544114-keurig_home_brewer_instructions_de

Hi
Leave the brew unit out but put everything else back in and then turn the machine on. the brew drive should reset to where it should be so you can put the brew unit back in, but make sure that the brew unit is ready to install.
You must make sure that the brew unit is ready to reinsert into the machine. To return the brew group to the centered position, you first need to drop the funnel. To do this, look on the opposite side of the brew group from the handle. At the top you will see an object that looks like a sharks fin. If you follow this piece down you will see 2 horizontal bars on the brew group body. Push your finger between these 2 bars and the funnel will drop. If you have you key you can insert it in the front of the brew unit. There is a round hold in the center below the "Push", and twist it clockwise until it stops and the 2 marks are lined up. If you don't have your key you can do this. Push the puck slide on the left side down and to the center. If you look down through the funnel you should see a piston. This should be centered in the funnel. If not, locate the slide on the left side of the brew unit, (it should be hanging down, a flat rectangular piece attached to the cylinder) and push the slide to the right until it does. Press the "Push" lever until you hear a click and you are now ready to reinsert the brew group in to the machine.