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Replacing the Melitta Caffeo Solo drainage valve

What you need

  1. Replacing the Melitta Caffeo Solo drainage valve, Open the Melitta Caffeo Solo: step 1, image 1 of 1
    • Pull out the power cord!

    • Remove the water tank and drainage tray.

    • Remove the side cover and remove the brewing unit.

    • Remove all coffee beans.

  2. Replacing the Melitta Caffeo Solo drainage valve: step 2, image 1 of 1
    • Unscrew and remove six Torx T10 on the rear.

    • Lever the rear cover off. It will most likely be quite stuck and you will need to apply some force. You must use plastic lever tools to prevent damaging the cover.

  3. Replacing the Melitta Caffeo Solo drainage valve: step 3, image 1 of 2 Replacing the Melitta Caffeo Solo drainage valve: step 3, image 2 of 2
    • Press carefully into the slits on the sides using a minus screwdriver or a flat metal spatula, to release the clasps on the upper surface. These may be well tight and you have to use some force.

    • You should have created a separation between the upper surface and side panels. Now lever the upper covering away using a plastic tool. This may be quite stuck and you may apply some force.

  4. Replacing the Melitta Caffeo Solo drainage valve: step 4, image 1 of 1
    • Place a plastic tool in the crack between front panel and left side panel and widen it. Then push the side panel to the back. The side panel will be quite stuck and you may apply some force to do this.

    • Remove the hose from the water tank to the pump.

    • Remove the side panel.

  5. Replacing the Melitta Caffeo Solo drainage valve: step 5, image 1 of 1
    • Place a plastic tool into the crack between the front panel and the right side panel and widen it. Then push the side panel to the back. This may be quite stuck and you may need to apply some force.

    • Remove the side panel.

  6. Replacing the Melitta Caffeo Solo drainage valve, Gear Drive: step 6, image 1 of 3 Replacing the Melitta Caffeo Solo drainage valve, Gear Drive: step 6, image 2 of 3 Replacing the Melitta Caffeo Solo drainage valve, Gear Drive: step 6, image 3 of 3
    • Rotate clockwise the expansion box about 60 degrees and pull it out.

    • The expansion box is frequently filled with coffee oils or grounds. Clean it from time to time. It can easily be separated into two halves.

  7. Replacing the Melitta Caffeo Solo drainage valve: step 7, image 1 of 1
    • The drainage valve is directly plugged to the gear drive. The drive is fixed with five Torx T10 screws on the center panel behind the brew group.

    • Remove the five Torx T10 screws holding the gear drive in place.

  8. Replacing the Melitta Caffeo Solo drainage valve: step 8, image 1 of 2 Replacing the Melitta Caffeo Solo drainage valve: step 8, image 2 of 2
    • Push the gear drive outwards to the left. Pay attention, several cables might get caught.

    • Lay the gear drive on its side. Loosen the upper water connector by pulling the clamp and than sliding off the hose. Mind the O-ring on the end of the hose, replace it if necessary.

  9. Replacing the Melitta Caffeo Solo drainage valve, Drainage Valve: step 9, image 1 of 3 Replacing the Melitta Caffeo Solo drainage valve, Drainage Valve: step 9, image 2 of 3 Replacing the Melitta Caffeo Solo drainage valve, Drainage Valve: step 9, image 3 of 3
    • The drainage valve is exposed.

    • Remove the spring on the lower end of the valve.

    • Lift the upper gray part of the valve. Push the lower part of the valve a little bit downwards und lift it out.

Conclusion

Apply the steps in reverse order to reassemble the machine.

One other person completed this guide.

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VauWeh

Member since: 10/19/15

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3 Comments

Very good instructions it took me about an hour. be careful with the o rings you need toe remove the old one from the ols drain valve. And also take care with the back large white plastic spacer behind the gear drive, it drops off easily and needs to be in the same position (there are 3 possible positions!!!!) also on mine there was just a tube for the expansion.

PAUL EDMONDS-RILEY - Reply

Hi VauWeh, thank you very much for your guide!

I think I was working on this Drainageventil, when suddenly a ball bearing (or Float-Ball?) came loose. Any idea where the ball should be?

Renout - Reply

Look at this guide, step 10. There is a part marked orange, a spring loaded piston. Older valves don't have this, but only a single (lose) ball, no spring. I think this is your ball. Just put it back, that's all!

VauWeh -

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