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Adjustments (continued)
pressure will increase temperature. The steam boiler has
been factory adjusted to 1.2bar, (the recommended
pressure). Please check if your pressure on the pressure
switch is 1.2bar or in the green zone (1-1.4bar). (see
page 4, Figure B, part C) If so, you don't need to adjust
the pressure. In case there is a need to calibrate the
pressure, please follow below procedure for calibration:
NOTE: Please turn off the machine before undertaking
this operation.
1. Turn off machine.
2. Remove top cover of machine, and locate the
pressure switch on the upper right size.
3. Remove the black case from the pressure switch.
Use screw to adjust the pressure as shown in Figure
O. Turn screw clockwise to decrease pressure, or
counterclockwise to increase pressure. A complete
screw turn results in 0.1 bar variation.
Troubleshooting
WARNING:
To reduce the risk of electrical shock, unplug the dispenser power cord before repairing or
replacing any internal components of the unit. Before any attempt to replace a component, be sure to check all
electrical connections for proper contact. Only a qualified service technician should perform electrical and
mechanical adjustments or repairs.
Before you call for help, please read the following:
INDICATION
All lights on control •
panel turn on
All lights on ONE
control panel flash
10
Figure O
After two minutes of
water input, indicator
still does not show a
rise in machine water
level. It will take more
than two minutes to
replenish water when
the machine is used
for the first time.
• No water output
from brewing group.
• Brewing for a long
time without reaching
setup value.
Grindmaster
Draining
CAUTION: BURN HAZARD
Dispenser surfaces and water inside dispenser are very
hot. Use caution when draining unit to prevent burns.
CAUTION: BURN HAZARD
Never turn on drain valve when there is pressure in
the boiler.
If espresso machine will not be used for an extended
period, will be stored, or transported, drain tank to
prolong life and prevent damage from freezing.
1. Turn off the machine, and release all the pressure
from boiler by turning on the steam knob(s).
2. After the steam is completely released and the
pressure on steam boiler pressure gauge reads "0",
remove drain tray and locate drain valve under
drain tray. Turn on drain valve to drain water out of
boiler. Drain valve is on when it is parallel to pipe.
NOTE: Please DO NOT turn off the steam knob after the
steam is released for storage. Keep the steam knob on.
When you re-start the machine, do not turn off the
steam knob until you see water drop from the steam
wand. This is to balance the boiler pressure.
3. Turn off drain valve when water stops flowing into
waste cup. Drain valve is off when it is
perpendicular to pipe.
PROBABLE CAUSE
•
Water level probe not
functioning properly.
•
Water intake solenoid is
out of order.
•
Input water flow has been
interrupted.
• Coffee grounds are too
fine.
• Water intake solenoid is
out of order.
• Flow meter is out of order. • Press any key to eliminate
®
SOLUTION
•
Make sure that the water
valve is turned on and
there is water flowing
into machine.
• Turn off machine. Restart
after 3 seconds.
• Turn water supply on.
• Adjust fineness of coffee
grinds.
• Turn off machine. Restart
after 3 seconds.
Venezia II Espresso Machine
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