Nespresso Citiz & Co EF 488 - Manual (Page 135)

Citiz service manual 135
F U N C T I O N T E S T S
9.4.2 Test run
9) Connect mains cable.
10) Switch on coffee machine.
11) After heating up, press the "small cup"
button.
12) Open the valve and let the water flow
for approximately 10 sec out of the
drain hose.
13) Close the valve completely. The pres­
sure stabilizes after increasing briefly
between 16­19 bar (pressure check).
The pressure increases slowly with
increasing temperature. Should the
pressure exceed 23 bar, switch off
the coffee machine and release the
pressure by opening the valve.
For better visibility
use a flashlight.
14) Check all connections under pressure
for audible and visible leaks.
Do not run the pump for more
than 50 sec with the valve closed.