Replace lower solenoid valve on Ecam 350.55

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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.

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crwdns2931653:01crwdne2931653:0 DeLonghi ECAM back panel removal

Replace lower solenoid valve on Ecam 350.55, DeLonghi ECAM back panel removal: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

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

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Replace lower solenoid valve on Ecam 350.55: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0

Replace lower solenoid valve on Ecam 350.55: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

Lift out the back.
The following components are immediately visible:
grinder
pump
flowmeter

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crwdns2931653:03crwdne2931653:0 DeLonghi ECAM Series left side panel

Replace lower solenoid valve on Ecam 350.55, DeLonghi ECAM Series left side panel: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0

Replace lower solenoid valve on Ecam 350.55, DeLonghi ECAM Series left side panel: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0

Replace lower solenoid valve on Ecam 350.55, DeLonghi ECAM Series left side panel: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

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

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crwdns2931653:04crwdne2931653:0 Ecam 350.55 lower solenoid valve

Replace lower solenoid valve on Ecam 350.55, Ecam 350.55 lower solenoid valve: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0

Replace lower solenoid valve on Ecam 350.55, Ecam 350.55 lower solenoid valve: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

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.

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Replace lower solenoid valve on Ecam 350.55: crwdns2935265:05crwdnd2935265:01crwdnd2935265:02crwdne2935265:0

Replace lower solenoid valve on Ecam 350.55: crwdns2935265:05crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

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.

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Replace lower solenoid valve on Ecam 350.55: crwdns2935265:06crwdnd2935265:01crwdnd2935265:02crwdne2935265:0

Replace lower solenoid valve on Ecam 350.55: crwdns2935265:06crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

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
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.
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.