Replace Siemens EQ 5 ceramic valve - iFixit 修理ガイド

はじめに

On these machines, the ceramic valve controls the entire flow of liquid. If it no longer works properly, various errors can occur: no coffee, no steam, no hot water... You can remove the valve and replace it, or try cleaning and descaling it first.

必要な工具と部品

手順1 Remove Siemens EQ Series side panel (tank side).

Replace Siemens EQ 5 ceramic valve, Remove Siemens EQ Series side panel (tank side).: 手順 1、 1の画像 1

Never forget: pull out the mains plug!
Remove all attachments such as water tank, pulp drawer, brew group.
Remove the coffee container lid and take out all the coffee beans.

手順2

Replace Siemens EQ 5 ceramic valve: 手順 2、 1の画像 1

Unscrew the two Torx T10 screws at the top of the right side panel.
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.

手順3

Replace Siemens EQ 5 ceramic valve: 手順 3、 3の画像 1

Replace Siemens EQ 5 ceramic valve: 手順 3、 3の画像 2

Replace Siemens EQ 5 ceramic valve: 手順 3、 3の画像 3

Lay the machine on its side with the water tank side facing up.
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.
If the catches are loose, you can pull the side panel away from below. But it's still stuck in other places.
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.

手順4

Replace Siemens EQ 5 ceramic valve: 手順 4、 1の画像 1

You may need to pry the front edge with a plastic tool.
Lift the side panel off, but don't remove it completely yet. It is still connected with a silicone tube.
The water tank lid is located at the top of the side panel. Lift it up off the hinges.

手順5

Replace Siemens EQ 5 ceramic valve: 手順 5、 1の画像 1

Pull off the silicone hose that leads to the water connection of the tank from the inside.

手順6

Replace Siemens EQ 5 ceramic valve: 手順 6、 2の画像 1

Replace Siemens EQ 5 ceramic valve: 手順 6、 2の画像 2

Remove the cover over the electronics.
The second picture shows the most important components:
heater
Ceramic valve/Brew valve (depending on model)
electronics
pump
mute
flow meter

手順7 EQ 5 ceramic valve

Replace Siemens EQ 5 ceramic valve, EQ 5 ceramic valve: 手順 7、 3の画像 1

Replace Siemens EQ 5 ceramic valve, EQ 5 ceramic valve: 手順 7、 3の画像 2

Replace Siemens EQ 5 ceramic valve, EQ 5 ceramic valve: 手順 7、 3の画像 3

If you haven't already done so: Remove the two plastic covers over the cables and the electronics box.

手順8

Replace Siemens EQ 5 ceramic valve: 手順 8、 3の画像 1

Replace Siemens EQ 5 ceramic valve: 手順 8、 3の画像 2

Replace Siemens EQ 5 ceramic valve: 手順 8、 3の画像 3

Locate the two strands of wire going from the ceramic valve to the motherboard. Unplug the connectors and unthread the cables.

手順9

Replace Siemens EQ 5 ceramic valve: 手順 9、 1の画像 1

Turn the machine over. Remove the three Torx T15 screws securing the ceramic valve. Pay attention to the washers.

手順10

Replace Siemens EQ 5 ceramic valve: 手順 10、 1の画像 1

Turn the machine over again.
Pull out the clamp on the pressure hose to the ceramic valve.
Pull off the pressure hose and push it aside.

手順11

Replace Siemens EQ 5 ceramic valve: 手順 11、 2の画像 1

Replace Siemens EQ 5 ceramic valve: 手順 11、 2の画像 2

Carefully pull out the valve.
Pull off the thick and thin silicone hoses.

手順12

Replace Siemens EQ 5 ceramic valve: 手順 12、 2の画像 1

Replace Siemens EQ 5 ceramic valve: 手順 12、 2の画像 2

Pull off the clamps on the other two pressure hoses. Make a note of which hose goes where and detach the two hoses.

手順13

Replace Siemens EQ 5 ceramic valve: 手順 13、 1の画像 1

Remove the ceramic valve.

終わりに

Follow the steps in reverse order to reassemble your device.

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