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Siemens EQ5 Replace pulsation damper/pressure relief valve

소개

The pulsation damper/pressure relief valve may be faulty, e.g. due to limescale. Remove it, check it or replace it.

필요한 것

  1. Siemens EQ5 Replace pulsation damper/pressure relief valve, Remove Siemens EQ Series side panel (tank side).: 1 단계, 이미지 1/1

    • 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.

    번역하기

  2. Siemens EQ5 Replace pulsation damper/pressure relief valve: 2 단계, 이미지 1/1

    • 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.

    번역하기

  3. Siemens EQ5 Replace pulsation damper/pressure relief valve: 3 단계, 이미지 1/3 Siemens EQ5 Replace pulsation damper/pressure relief valve: 3 단계, 이미지 2/3 Siemens EQ5 Replace pulsation damper/pressure relief valve: 3 단계, 이미지 3/3

    • 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.

    번역하기

  5. Siemens EQ5 Replace pulsation damper/pressure relief valve: 4 단계, 이미지 1/1

    • 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.

    번역하기

  6. Siemens EQ5 Replace pulsation damper/pressure relief valve: 5 단계, 이미지 1/1

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

    번역하기

  7. Siemens EQ5 Replace pulsation damper/pressure relief valve: 6 단계, 이미지 1/2 Siemens EQ5 Replace pulsation damper/pressure relief valve: 6 단계, 이미지 2/2

    • 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

    번역하기

  8. Siemens EQ5 Replace pulsation damper/pressure relief valve, Pulsation damper / pressure relief valve: 7 단계, 이미지 1/3 Siemens EQ5 Replace pulsation damper/pressure relief valve, Pulsation damper / pressure relief valve: 7 단계, 이미지 2/3 Siemens EQ5 Replace pulsation damper/pressure relief valve, Pulsation damper / pressure relief valve: 7 단계, 이미지 3/3

    • The pulsation damper is mounted directly above the pump.

    • Pull off the clear hose.

    • Loosen the hose clamp on the red pressure hose and pull off the hose

    • Lock the outlet connection of the pump with a 12mm box-end wrench

    • Unscrew the valve. If it is not easy, you can also loosen the bayonet on the connection for the clear hose. Caution: a spring and a valve tappet may fall out.

    • The valve may just be calcified, in which case place the insides in a descaler. If you blow into the valve from the pump side, there should be hardly any resistance.

    번역하기
결론

Work through the steps in reverse order to reassemble your device.

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