First of all, check the saturation of the groups; the flowmeter should also be checked for possible obstructions (in which case the impeller will not turn), or the flowmeter field sensor may not be functioning properly. Lastly, check the wire transmitting the signal from the keypad to the brain. For further assistance, call Whole Latte Love at 1-888-411-5282.
First of all by making sure that it is never turned on without water (even a few seconds may affect its reliability). It's also important that the water does not contain impurities which might make the pump seize up or cause noisy functioning. For further assistance, call Whole Latte Love at 1-888-411-5282.
While the coffee boiler is heating up you'll see the needle rise on the pressure gauge; when it gets to about 11 - 12 BAR turn the cap on the valve so that this maximum pressure is maintained on the pressure gauge. Turning it clockwise increases the pressure, anti-clockwise reduces it. For further assistance, call Whole Latte Love at 1-888-411-5282.
The steam pressure gauge should reach a maximum of 1.5 BAR. This makes an optimal flow of steam possible. The pressure gauge of the boiler should show 9 BAR when the pump is on; during normal functioning the pressure may vary from a minimum equal to the mains pressure, to a maximum of 12 BAR. For further assistance, call Whole Latte Love at 1-888-411-5282.
This is best done with the machine turned off and with limited water pressure (usually the mains pipe pressure is sufficient). With the machine off, the coffee boiler can fill up with mains water. Above every brew group there is a bleed screw which is for releasing the air from inside the group. This operation should be performed one group at a time. For further assistance, call Whole Latte Love at 1-888-411-5282.