Question about Nespresso D300 Espresso Machine

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Nespresso D300 says "Fill Water" even after I have filled container.

Our Nespresso D300 continues to say"Fill Water" even after I have filled and repositioned the container. I have also unplugged the machine.

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Re: Nespresso D300 says "Fill Water" even after I have...

Even if you fill the tank with water, the machine will display this message when it is empty inside (the pipes, heating element, etc.) You need to prime it: run some water through it by running the steamer/hot water wand.  That should take care of it.

Posted on Oct 24, 2007

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Re: Nespresso D300 says "Fill Water" even after I have...

This happens when the pump gets plugged with scale. You can try descaling the machine if water can still be circulated through it. If no water comes out at all, then you will have to take out the pump and dip it in vinegar. This is not too difficult to do - I will post detailed instructions on how to do it separately

Posted on Aug 13, 2015

Re: Nespresso D300 says "Fill Water" even after I have...

Hello there,
My machine did exactly this. Sadly, when I rang the people they said the reason the machine was confused about the water was because it was backed up with scale, they had to take it away and replace some parts. It's about £80 flat rate to get it fixed.
Sorry this doesn't really help much practically but if all else fails....

Posted on Sep 30, 2008

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It probably need descaling. However, if no water comes out at all, descaling is a bit hard. You may need to take out the pump and dip it in vinegar or another descaling fluid.

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Instructions per De'Longhi:

Due to the continuous heating of the water used to make the coffee, over time it is normal for the tubing inside the machine to fill with lime scale. When the light starts flashing, it is time to descale the machine.
NOTE: when the light switches on, the coffee maker can still be used to prepare coffee.
Proceed as follows:
• Empty the tank and pour in the contents of one bottle (125 ml) of DURGOL descaler plus one liter of water. For subsequent descaling operations, descaling solution can be purchased from authorized technical service centers.
Note: Make sure splashes of descaler do not fall onto surfaces sensitive to acid such as marble, limestone and granite.
• place a container with a minimum capacity of 34 oz. under the
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• turn the machine on by pressing the button.
• wait for the green and indicator lights to come on steady.
• press and hold the button for at least 5 seconds. The decalcification warning light will illuminate to indicated the start of the descaling program (the and lights remain off to indicate that it is not possible to make coffee).
• turn the steam knob half a turn counter-clockwise. The
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• the descaling program automatically performs a series of deliveries and pauses, so as to remove the lime scale deposits from inside the coffee maker.
• after around 30 minutes, when the light comes on, turn the steam knob half a turn clockwise until it stops.
The machine must be rinsed so as to eliminate the residues of descaling solution from inside the machine. Proceed as follows:
• remove the water tank, rinse it and fill it with clean water.
• reposition the tank.
• empty the collection container (located under the milk frother) that is full of liquid, and then replace it under the milk frother.
• turn the steam knob half a turn counter-clockwise. Hot water will come out of the milk frother and fill the container underneath.
• when the tank is empty, the indicator light goes off and another light (looks like a pitcher pouring water) comes on.
• turn the steam knob all the way clockwise and fill the water
tank with clean water again.
• the program of descaling is now terminated and the machine is
ready to make coffee again.
NOTE: if the descaling procedure is interrupted before completion, the alarm is not deactivated and the procedure
must be started again form the beginning.

You can download the entire pdf manual from the De'Longhi website:

Helpful tips:
Descaling products are widely available from stores that sell coffeemakers and espresso machines. Be sure that the product you buy to descale your Espresso machine is intended for this specific use only. Before you descale your Espresso machine, always unplug it and make sure that it is cold. Also, never immerse the appliance in water or use abrasive cleaning products/scouring materials on any part of your espresso machine.

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1 Answer

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Preparation: Set the unit so you can easliy reach the back side of the unit. Fill the container with 7 - 14 oz of water and have it nearby. Place a cup underneath the coffee drip container in the front. Have another small cup of water handy.

Process: Plug in the unit to an outlet. Hold as much water in your mouth as you can. Press the CLEAN button on the unit then put your lips over the water inlet valve on the back of the unit. Force (blow) the water from your mouth into the inlet valve. You should begin to hear the unit pushing the water through. Place the water container over the water inlet valve after you have released the water from your mouth. The unit should continue to empty the water container. Now, you just have to fill the water container and make a cup of coffee.

This is the same procedure I performed to get mine going again; I am not trying to make you look like an idiot.

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