Introduction
If the coffee becomes thin, the grindstones may have become blunt. The beans are then only crushed and not cut, making the coffee less aromatic and thin. This can already happen after about 10000 cups. In DeLonghi machines, unfortunately, the entire grinder must be replaced, since the grindstones are not available as spare parts. A hint on how to replace the grindstones is given in this guide: DeLonghi Coffee Maker grindstones replacement
Tools
Parts
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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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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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Depending on the model, the steam tap/water spout must be removed, there are slight differences here.
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Pull out the plastic clip on the steam nozzle.
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Pull the steam nozzle out towards you.
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Carefully pull off the steam faucet toggle. Only use a plastic tool to pry to avoid damaging the bezel.
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If you haven't already done so, also detach the right-hand cover on the water tank.
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Remove the four Phillips screws securing the top cover.
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Lift the top cover up a bit. That might be a bit sticky.
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If there is a cup warmer, then unscrew the nut SW7 with which the two green-yellow cables are connected and loosen it. The two brown cables on the other side can stay if you just put the cover on top.
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Place the top cover on top, or remove it entirely.
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Turn the machine so that the grinder faces you. The grinder stands in the machine without further attachment. You only have to follow the course of the two black connection cables and disconnect the plugs.
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Turn the machine so that the left side is facing you.
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The black cable is part of the cable bundle. Cut the cable tie first. Replace it with a new one when reassembling.
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Loosen the flat plug at the end of the black cable. You have to push in a small catch on the connector.
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Remove the black cable.
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Turn the machine so that the other side is facing you. The second black cable leads from the back to the control board.
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Cut the cable tie on the cable bundle here as well. Replace it with a new one when reassembling.
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Pull off the flat plug at the end of the cable. You have to push in a small catch on the connector.
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Remove the second black cable.
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Turn the machine with the rear side facing you.
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Lift the grinder up and out.
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Remove the red silicone ring from the top of the grinder and transfer it to the spare part.
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Follow this guide in reverse order to reassemble your device.