Einleitung
If the display shows error 5, the flow meter is reporting insufficient flow. The electronics can be disturbed, the thin inlet duct is often dirty - or the water stops later, e.g. because the heater is calcified. Thus guide shos, how the flowmeter is removed, opened and revised or replaced.
Was du brauchst
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Remove the water tank.
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Remove all the coffee beans.
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Remove the brewing assembly.
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Remove the drip tray and the coffee grounds drawer.
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Pry up with a plastic opening tool at the bottom edge of the chrome-plated cover to lift up the coffee dispensing spout. This cover is often very tight, so you have to pry hard and hope that the part does not break.
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When the lower edge of the spout is released, you can pry on the side edge until the chrome cover comes off completely.
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Lift off the black cover over the coffee dispensing spout. The sliding nozzles will come off at the same time.
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Remove both Torx T10 screws on the left and right at the bottom edge of the coffee dispensing spout.
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Pull off the hot water dispensing spout.
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Remove the Torx T20 screw on the finger guard of the grinder. Remove the finger guard.
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Remove three Torx T10 screws in the bean container.
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Remove the water level sensor cable from its brackets.
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Carefully remove the plug from the water level sensor.
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The cover is now free and can be removed.
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If you haven't already done so: Unscrew the center Torx T10 screw at the bottom of the coffee spout distributor.
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Unscrew the Torx T10 screw in the middle left front.
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Lift the service door up and remove it.
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Lift the coffee spout distributor up and remove it.
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The coffee spout distributor tends to be dirty. Open it and clean it thorougly.
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Lift the inner frame up and remove it from the outer case. It may get stuck a bit, help with a plastic lever tool.
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This is what the inner frame looks like from three sides. All components are easily accessible, especially the pump, the flowmeter and the heater.
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And this is what the completely gutted outer case looks like. It can now be cleaned well.
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Lay the machine on its side so the flow meter is on top.
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Disconnect the silicone tubes from the flow meter.
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The flowmeter is locked into the inner frame. Using pliers press the white plastic catches on the underside together and press the flowmeter out.
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Disconnect the flowmeter.
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Remove the flowmeter.
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Blow into into the lower nozzle into the flowmeter. It should be quite easy and you should hear the turbine buzzing.
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The upper half of the flowmeter is locked in place with a bayonet catch. Turn the upper part a little counterclockwise.
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Lift off the upper half. Pay attention to the gasket. The turbine can be easily lifted out.
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Now you can clean and decalcify everything well. Clean in particular the entrance nozzle, for example with a needle. The opening is quite narrow.
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Reassemble the flowmeter and check again by blowing into it to make sure that the water flews free and that the turbine is buzzing nicely.
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Repeat the steps in reverse order to reassemble your device.
Repeat the steps in reverse order to reassemble your device.
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