espresso coffee machines
83
LSC 040 - Rev. 00 - Ed. 12/2009
If there is a fault in the boiler pressure sensor the auto-setting functions and the management of the thermostat are not available if
there is a fault in the temperature sensor.
Furthermore, the controls managed by the sensor are disenabled.
ALARM FOR FAILED THERMO REGULATION
This alarm blocks the machine.
This alarm intervenes when the boiler temperature sensor and the boiler pressure sensor are simultaneously faulty.
The main display visualises the alternating messages CUT OFF BOILER TEMPERATURE PROBE or SHORT CIRCUITED BOILER
TEMPERATURE PROBE and FAILED BOILER PRESSURE SENSOR for 1 minute. The ALARM FOR FAILED THERMO REGULATION
message follows.
AIR IN THE BOILER, OPEN THE STEAM WANDS
This alarm does not block the machine.
This alarm intervenes when the boiler pressure sensor detects a pressure greater or equal to 0.5 bar and the temperature sensor
detects a temperature less than 100°C.
The alarm resets when the pressure value re-enters within normal parameters.
FAILED WATER PRESSURE SENSOR
This alarm does not block the machine.
This alarm intervenes when the water pressure sensor is faulty.
The alarm is visualised on the display for 5 minutes and is then substituted by the flashing
symbol that signals the presence of
a malfunction in the machine.
If the water pressure sensor is faulty the controls and alarms associated to it are not available.
HIGH WATER PRESSURE
This alarm does not block the machine.
This alarm intervenes when the water pressure sensor detects a pressure greater than 6 bar for 3 consecutive seconds.
The alarm is visualised on the display for 5 minutes and is then substituted by the flashing
symbol that signals the presence of
a malfunction in the machine.
