Exactly the same problem - fill watertank message

My guess would be that your water tank float is trapped.
The remidy would be to descale the watertank itself.
If you use the Calris filter cartridge. remove it before descaling with a mild commercially available descaler. Don't forget to rinse thorrowly afterwards and reinsert the filter. Always use cold water to fill the watertank.
Hope this helps

Hi there,
In the water tank there is a float with magnet inside. When water is filled it should rise up to indicate the machine has water.If it is not floating up ,try putting some foam underneath to raise up.It should help.

Hi
The magnet in the water tanks is either upside down or has sunk to the bottom of the tank. It should float to the top of the cage it is in and it should have a flat top not rounded. If its rounded side up the magnet is upside down. This is what would cause your problem.

Sounds like the sensor that detects system water levels has failed.

If you can see it inside try cleaning it or ask Miele for some advice via their website

You need to run the Decalcyfying program. Push and hold the button with the symbol that looks like a tube with small dots inside. You will get the message empty tray and empty grounds. Do so, and put everything back. The message Solvent or Agent in tank will be displayed. Meassure up 700ml water in a container, put 3 Descaling tablets in the water and let it be completly desolved before you pour this into the empty watertank. It`s very important that you don`t use more liquid, this will make the program run forever. When the solvent is in the tank, push the buttoun again, and the program starts. After a while (20 minutes or so) you will be asked to empty tray/grounds again and to fill the watertank. At this point you can fill up the watertank, this will not affect the running of the program. In the end, you must empty tray/grounds again, and after this the machine is heating up and ready to use. Good luck!

The flowmeter is on the bottom of the machine follow the line that leads from the pump and you will see the flowmeter.

Open the hot water valve, and run about a cup of water, this will engage the pump and fill the circuit.

there is a liltle floating black thing at the back of the container, this works as a magnet switch. see if it is there or is stuck and doesnt raise with the water level.

Hi Marty,

Make sure the magnet in the water tank flow up when you fill the water tank with water.

The black thing floating in the water tank is a plastic shell with a magnet inside. If you clean it...make sure you reinstall it with the tapered (smaller) side down. There is a slight size difference BUT it will make ALL the difference in the world.

I had no idea there was a magnet in that black/greyish case. The direction of the casing is important.
I had the same problem and that solved it!