Replace Siemens EQ 5 ceramic valve

ID: 149010

Description: On these machines, the ceramic valve controls...

Steps:

  1. Never forget: pull out the mains plug!
  2. Remove all attachments such as water tank, pulp drawer, brew group.
  3. Remove the coffee container lid and take out all the coffee beans.
    4. Step image
  4. Unscrew the two Torx T10 screws at the top of the right side panel.
  5. Some models do not have these screws. Then the side parts are only held by catches, some of which clamp very strongly. You may have to detach the back part first.
    6. Step image
  6. Lay the machine on its side with the water tank side facing up.
  7. The side panel is essentially held on the ground by five strong catches. Pry up the pegs with a strong prying tool. It's pretty difficult and you need a lot of strength.
  8. If the catches are loose, you can pull the side panel away from below. But it's still stuck in other places.
  9. Use a plastic tool to pry the top cover up a few millimeters and lift off the side panel. Most of the time it's still stuck, especially at the front edge, you have to pull hard.
    10. Step image Step image Step image
  10. You may need to pry the front edge with a plastic tool.
  11. Lift the side panel off, but don't remove it completely yet. It is still connected with a silicone tube.
  12. The water tank lid is located at the top of the side panel. Lift it up off the hinges.
    13. Step image
  13. Pull off the silicone hose that leads to the water connection of the tank from the inside.
    14. Step image
  14. Remove the cover over the electronics.
  15. The second picture shows the most important components:
  16. heater
  17. Ceramic valve/Brew valve (depending on model)
  18. electronics
  19. pump
  20. mute
  21. flow meter
    22. Step image Step image
  22. If you haven't already done so: Remove the two plastic covers over the cables and the electronics box.
    23. Step image Step image Step image
  23. Locate the two strands of wire going from the ceramic valve to the motherboard. Unplug the connectors and unthread the cables.
    24. Step image Step image Step image
  24. Turn the machine over. Remove the three Torx T15 screws securing the ceramic valve. Pay attention to the washers.
    25. Step image
  25. Turn the machine over again.
  26. Pull out the clamp on the pressure hose to the ceramic valve.
  27. Pull off the pressure hose and push it aside.
    28. Step image
  28. Carefully pull out the valve.
  29. Pull off the thick and thin silicone hoses.
    30. Step image Step image
  30. Pull off the clamps on the other two pressure hoses. Make a note of which hose goes where and detach the two hoses.
    31. Step image Step image
  31. Remove the ceramic valve.
    32. Step image
Back