Replace lower solenoid valve on Ecam 350.55

If no more coffee comes out, one of the solenoid valves may not be working. To check, you can use the test mode, which will allow you to hear the valves clicking quietly. If you don't hear a click, it is probably defective.

Note: The opening is shown on a different model; there are slight visual differences.

What you need

Difficulty: Moderate | Estimated time: 15-30 minutes

Tools

• T20 Torx Screwdriver Bit

Step-by-step repair guide

Step 1

⚠️ Caution: Unplug the power cord!

Remove all attachments such as water tank, pulp drawer, brew group.

Turn the machine with the back facing you.

Remove five Torx T20 security screws.

💡 Note: A small hurdle: These screws have a pin in the middle, so the screwdriver must have a hole.

Step 2

Lift out the back.

The following components are immediately visible:

grinder

pump

flowmeter

Step 1

Push the side panel back about 1.5 cm.

Lift off the panel.

The following compononents are exposed:

Heater

Expansion chamber

Gear drive

Steam valve

Step 1

💡 Note: The lower solenoid valve is located on the lower left side of the device.

Pull out the clip between the solenoid valve and the pressure relief valve.

Lift the pressure relief valve upwards.

There is a seal between them. It will probably get stuck in the pressure relief valve. Remove it and replace it with a new one.

Step 2

Pull the valve together with the rubber sleeve away from the machine toward you.

Note how the cables are connected and remove all the blade terminals.

Remove the clamps and take out the hoses.

There is a seal ring between them. It will probably remain stuck in the solenoid valve. Remove it and replace it with a new one.

Step 3

Remove the valve from the rubber housing.

There is a black angle fitting on the right side of the valve. Pull out the clip and remove the angle fitting. The clip is slightly larger then the others. There is also a seal between them, which you should replace later

💡 Note: You can try to open the valve, clean it, and make it work. If the valve coil has a resistance of about 2 kOhm, it may work again. But you will probably have to replace it.

⚠️ Caution: When installing a new valve, pay attention to the direction of flow; the flow points toward the black mark or is indicated by an arrow. If you install it incorrectly, the machine will not work.

Conclusion

Follow the steps in reverse order to reassemble your device.