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Doc. nr.: TBDL_22015_A
The machine will start pumping water towards the coffee outlet which, being clogged by the
cleaning disk into the portafilter, will force the pressure gauge to unstick and start measuring the
pressure increase.
Once the pressure gauge will rise up, press again the OK button to stop the water delivery and force
the machine to discharge the pressure from the drain circuit.
IMPORTANT: In case the above procedure won't be effective, repeat the steps from 1 to 3, then
access the FUNCTIONAL TEST MODE as indicated in the machine's datasheet and service manual
available into the DLS website's "Technical Documentation" section for each model. Then, activate
the COFFEE HYDRAULIC CIRCUIT by holding the OK button pressed.
This will force more pressure to reach the pressure gauge, thus helping it to unstick from the zero
position.
IMPORTANT SAFETY NOTICE: After having completed the above functional test, remove carefully
the portafilter from the coffee outlet to avoid any residual water pressure injury the operator.
NOTICE: Only in case none of the above mentioned countermeasures would be effective, proceed
with the replacement of the pressure gauge on the machine.
[3]
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