How to Troubleshoot a Nespresso C100

Written by neil greenlees
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How to Troubleshoot a Nespresso C100
The perfect cup of espresso will still be on the menu if you can successfully troubleshoot your Nespresso C100. (espresso image by Stephen Chaplin from

The Nespresso C100 is a popular make of domestic espresso machine---popular, that is, until it stops functioning just when you're ready for a Java shot. Before you contact Nespresso Club, try some simple troubleshooting. You may be able to solve the problem yourself.

Skill level:


  1. 1

    Check to ensure your Nespresso C100's plug is securely in the wall socket.

  2. 2

    Check your home's fuse box to ensure the fuse controlling your Nespresso C100 has not blown. If your home has a breaker box, ensure the switch controlling the machine has not tripped.

  3. 3

    Switch on lights and other appliances. If they fail to function, your neighbourhood may be suffering a power failure.

  1. 1

    Check the water tank at the rear of the machine to make sure there is water in it.

  2. 2

    Check the capsule holder on top of the machine to ensure an espresso capsule has been placed in it.

  3. 3

    Service the venting by pressing the "start" button, holding the top of the capsule holder in the open position for several seconds, pressing the "stop" button and closing the capsule holder lid.

  1. 1

    Rinse the system thoroughly with hot water.

  2. 2

    Place Nespresso descaling chemical in the water tank along with half a litre of water.

  3. 3

    Raise the lever, insert the descaling filter and close the lever.

  4. 4

    Press both the "small" and "large" coffee cup buttons simultaneously and then press the "start" button and allow the descaling solution to run through for 90 seconds.

  5. 5

    Refill the water tank with descaling solution and repeat the process. Rinse the system thoroughly.

Tips and warnings

  • Keep your Nespresso C100 scrupulously clean using a damp cloth and a mild cleaning agent.
  • Warm the machine thoroughly by running hot water through the system before making espresso.
  • Never plug your Nespresso C100 into anything other than a grounded electrical socket.
  • Ensure the voltage quoted on your machine corresponds to the electrics in your home.
  • Never lift the closing lever while the machine is functioning as the coffee is dispensed under high pressure.

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