To adjust the water quantity on the Nespresso Citiz, you can program the machine to dispense the desired amount of water for your coffee. First, turn on the machine and wait for it to heat up. Then, place a cup under the coffee outlet and press and hold the button for the desired coffee size. Release the button when the cup is filled with the desired amount of water. The machine will then remember this setting for future use. **

To clean the Nespresso Citiz, start by removing the used capsule and emptying the drip tray and capsule container. Then, mix a solution of water and Nespresso descaling solution and run it through the machine to descale and clean the internal components. After that, wipe down the exterior of the machine with a damp cloth and clean the drip tray and capsule container with warm, soapy water. Finally, run a few cycles of just water through the machine to rinse out any remaining descaling solution. **

To vent the Nespresso Citiz Milk Red by Krups, you can simply turn on the machine and let it run without inserting a capsule. This will allow any built-up pressure or steam to be released. Additionally, you can also run a cleaning cycle with just water to help vent any excess steam or pressure. Make sure to follow the manufacturer's instructions for proper maintenance and cleaning of the machine. **

To bleed the Nespresso Citiz Milk Red by Krups, you will need to run a cleaning cycle to remove any air bubbles or excess milk from the system. First, ensure that the machine is turned on and the water tank is filled. Then, place a container under the coffee outlet and press the Lungo button for 5 seconds to start the cleaning cycle. This will flush out any remaining milk and air from the milk system. Once the cleaning cycle is complete, the machine will be ready to use again. **

The milk frother of the Nespresso Citiz Milk may not be working properly anymore due to a clog or blockage in the frothing mechanism. This can happen if milk residue has built up and is obstructing the frother's components. Additionally, the frother may not be working if the heating element is damaged or if there is an issue with the frother's motor. Regular cleaning and maintenance of the frother can help prevent these issues and ensure it continues to function properly. **

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