Introduzione
If the pressure relief valve no longer works or it is leaking, it must be replaced. This is shown here.
Cosa ti serve
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Remove all attachments: Water tank, capsule and cup drawer, drip tray.
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In the first picture, the pressure relief valve is marked in yellow. It is located at the bottom of the machine. It is connected directly to the heater.
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The spare part is ready for installation.
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First remove the two connections on the clamps. Each connection is sealed with an O-ring. Those usually get stuck in the pressure relief valve. Replace those with new ones when reassembling.
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Carefully remove the valve.
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A hose attaches to the underside of the valve. This hose needs to be pulled off as well.
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The valve is now detached.
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Work through the steps in reverse order to reassemble your device.
Work through the steps in reverse order to reassemble your device.
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Un commento
To my surprise, newer Citiz machines (ca. 2019), do not have this pressure relief valve (APD, automatic priming device) anymore.
Instead there is only one hose connected to the water tank port.
The water goes via volumeter into the pump (as usual). Then from pump, the water goes to the location of the former APD.
There, we do not have the 3-way APD anymore, but a simply L-shaped connector leading directly to the entry of the heater/boiler.