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Melitta Caffeo Solo brewing unit maintenance

What you need

  1. Melitta Caffeo Solo brewing unit maintenance, Brewing Unit maintenance: step 1, image 1 of 1

    • Remove the brewing unit from the device.

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  2. Melitta Caffeo Solo brewing unit maintenance: step 2, image 1 of 1

    • Take off the cap covering the screwhole in one corner. The cap ensures a better fit of the brewing unit.

    • Note: some versions of the brewing unit do not have this cap.

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  3. Melitta Caffeo Solo brewing unit maintenance: step 3, image 1 of 1

    • Remove the single black Torx T10 screw fixing the opening handle.

    • Using a certain amount of force pull the opening handle out of the guidance near the red button.

    • Rotate the handle 90 degrees counterclockwise, then lift it off.

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  5. Melitta Caffeo Solo brewing unit maintenance: step 4, image 1 of 2 Melitta Caffeo Solo brewing unit maintenance: step 4, image 2 of 2

    • Unclip the upper protection panel, then remove it by lifting it up.

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  6. Melitta Caffeo Solo brewing unit maintenance: step 5, image 1 of 1

    • Remove six Torx T15 screws holding together the brewing unit. The screwholes are rather deep.

    • Lift the upper half of the brewing unit up.

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  7. Melitta Caffeo Solo brewing unit maintenance: step 6, image 1 of 2 Melitta Caffeo Solo brewing unit maintenance: step 6, image 2 of 2

    • The inside of the brewing unit ist exposed. You can see:

    • The upper piston and its gasket.

    • The funnel for the coffee grounds

    • The lower piston.

    • The hold-down clamp

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  8. Melitta Caffeo Solo brewing unit maintenance: step 7, image 1 of 3 Melitta Caffeo Solo brewing unit maintenance: step 7, image 2 of 3 Melitta Caffeo Solo brewing unit maintenance: step 7, image 3 of 3

    • Remove the funnel.

    • Rotate the lower piston counterclockwise and lift it off.

    • Lift off the upper piston. There ist still a hose connecting the piston to the coffee outlet. In top there ist also the downholder of the brewing unit.

    • Sometimes this downholder ist torn and the coffee leaks out of the brewing unit and does not fill your cup. Inspect the downholder for cracks. You can fix this using a special repair kit.

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  9. Melitta Caffeo Solo brewing unit maintenance: step 8, image 1 of 3 Melitta Caffeo Solo brewing unit maintenance: step 8, image 2 of 3 Melitta Caffeo Solo brewing unit maintenance: step 8, image 3 of 3

    • Remove the hose connecting the upper piston and the coffee outlet.

    • Remove the upper piston.

    • Remove the Torx T20 screw from the screen of the upper piston.

    • Take off the cover of the gasket and the gasket.

    • Replace the gaskets of the upper piston, the coffee outlet and water connector.

    • The lip of the piston gasket must point towards the pressure, i.e. downwards.

    • Clean thoroughly all parts. Use food-proof silicone grease to lubricate the gaskets.

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  10. Melitta Caffeo Solo brewing unit maintenance: step 9, image 1 of 1

    • The crema-valve is located in the interior of the upper piston. It is fixed by two Torx T10 screws.

    • Remove both screws. Lift off the valve. Inspect it and clean it.

    • Note: there is another gasket on the shaft of the lower piston. Replacing it is difficult.

    • Lubricate all sliding parts with food-proof silicone grease. Verify the smooth operating of the brewing unit.

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Conclusion

Follow the steps in reverse order to reassemble your device.

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VauWeh

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2 Comments

The brewing unit in my Melitta Avanza Series 600 (which is apparently identical) was completely stuck inside the machine, and the only way I could get it out was to follow this guide. Unscrewing the accessible side of the brewing unit gave me the necessary access to finally get the brewing unit unstuck and out of the machine. The cap mentioned in step 2 was a bit hard to get out with the brewing unit still inside the machine, but by first unscrewing all the other screws to loosen the side a bit and then using some force, I finally got it off without breaking it.

Note that I also had to reset the main gear position to get the brewing unit back into the machine, which on my machine was performed by pressing the single + double espresso front panel buttons for 2 seconds.

The reason why it was stuck? 100% my fault. I turned the machine off in the middle of a cleaning cycle when I realised I forgot to insert a cleaning tablet, and then tried to get the brewing unit out and ... yeah ... don't be an idiot like I was, do NOT attempt to take the brewing unit out while it's in "engaged" mode, unless you too wish to follow this guide for that reason. 😉

Fixiepixer - Reply

There is also a more bloodless way: open the left side, find the cables to the motor. Connect 12 V DC, et voila....

VauWeh -

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