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Unfortunately, this issue occurs often with De Longhi ECAM machines. The expansion chamber is sealed very poorly, and therefore, the problem is difficult to fix. Here's how you can try sealing the expansion chamber with a piece of household rubber.
Keep the screws well sorted, they have different lengths.
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Remove all attachments such as water tank, pulp drawer, brew group.
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Turn the machine with the back facing you.
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Remove five Torx T20 security screws.
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Lift out the back.
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The following components are immediately visible:
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grinder
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pump
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flowmeter
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Push the side panel back about 1.5 cm.
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Lift off the panel.
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The following compononents are exposed:
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Heater
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Expansion chamber
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Gear drive
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Steam valve
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The leak is easy to recognize from the traces of lime under the heater.
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from a defective pressure relief valve in front of the heater
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from a leaking steam valve
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from the upper brew piston if it is defective/leaky
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The lower front panel still has to be removed. To do this, loosen the two Phillips screws on both sides.
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The bezel is still snapped in at the bottom left vertical inner side. Release the catches and carefully lift the panel past the coffee spout.
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Carefully pull off the steam valve toggle. Only use a plastic tool to pry to avoid damaging the bezel.
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Pull out the plastic clip on the steam nozzle. It may be stuck and you will have to pull hard.
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Pull the steam nozzle out to the front.
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Unscrew the two Phillips screws that hold the steam valve in place. Note the washer on the right screw.
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Unscrew the three Phillips screws on the expansion chamber and the heater. There may be differences on other models.
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Pull off the two silicone hoses.
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The expansion chamber and heater unit is basically free. But it's still pretty stuck. Try prying it loose at the spout.
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When it's loose, you can gently pry it out.
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Clean the chamber and remove any traces of lime.
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Cut the rings and place them in the groove on the edge of the expansion vessel as a test. If they fit, stick them in place with a few drops of all-purpose glue.
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Carefully reinsert the expansion chamber, assemble everything and then test whether everything is tight.
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Work the steps in reverse order to reassemble your device.
Work the steps in reverse order to reassemble your device.
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Als Dichtung eignet sich Silikonschlauch Außen 3mm x Innen 2mm hervorragend. Ein Stück von 15-20cm ist ausreichend. Wichtig ist ja vor allem der untere Bereich.
Can you please post a link to a gasket that fits ? Amazon or similar?
Ok; do you think it would be better to cut the hose in the direction of the length, in order to wrap the other piece of plastic? or it has to be put in the slot as it is?
Use it, as it is. I myself took a normal rubber band from the kitchen and it worked.
VauWeh -
